Word for data input device

‘DATA INPUT DEVICE’ is a 15 letter
Phrase
starting with D and ending with E

Crossword answers for DATA INPUT DEVICE

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1. data input device, input devicenoun

   a device that can be used to insert data into a computer or other computational device

   Synonyms:
   input device

Matched Categories

1. • Peripheral Device

How to pronounce data input device?

How to say data input device in sign language?

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Citation

Use the citation below to add these synonyms to your bibliography:

What is an input device?

Input devices are peripherals used to provide data and control signals to a computer.

Input devices allow us to enter raw data for processing.

There are many examples of input devices, each with their own benefits and drawbacks.

Jump to a section on this page:

Information about a range of sensors can be found on our Sensors page.

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Mouse

What is a mouse?

A mouse is an input device that allows you to control the coordinates and movement of the onscreen cursor/pointer by simply moving the mouse across a flat surface with your hand.

Items can be selected or moved using the left mouse button, whilst the right button usually displays additional menus.

Most mice are now optical which means they use a laser to detect and track movement across the surface.

Mice can be wired or wireless.

Typical applications for a mouse

• Used in everyday computing to control the pointer in GUIs.

Benefits of a mouse

• Simple and easy to use
• Efficient way to navigate

Drawbacks of a mouse

• Requires a flat surface
• Requires space to operate

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Trackball

What is a trackball?

A trackball is an input device used to control a pointer/cursor. Unlike a mouse, the device stays stationary whilst the user moves the ball within its socket.

Trackballs can be stand-alone devices or combined into a keyboard or control panel.

Some people prefer using a trackball over a mouse as they believe it gives them a finer degree of control over the pointer.  They are also handy for people with limited hand motor skills as they are less demanding then a mouse.

Typical applications for trackballs

• Computer Aided Design (CAD) for fine control
• Situations when space is limited
• Disabled people with limited motor skills

Benefits of trackballs

• Needs little desk space
• Fine control over the pointer
• Can be integrated into a keyboard

Drawbacks of trackballs

• May take some getting used to

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Keyboard

What is a keyboard?

Keyboards are input devices that allow the entry of data and commands by simply pressing down keys on the keyboard.

Keyboards are a common place input device, often used alongside a mouse.  They can be wired or wireless.

Typical applications for keyboards

• Used in everyday computing to manually enter data and commands, e.g. writing a report in a word processor

Benefits of keyboards

• Simple and easy to use
• Potentially a fast way to enter data

Drawbacks of keyboards

• A slow way to enter lots of data if not a trained typist
• Mistakes can be made if not careful

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Concept Keyboard

What is a concept keyboard?

A concept keyboard is an input device similar to a traditional keyboard but each key/button is identified by an image.

The images are chosen to symbolise the command/option each key represents.  E.g. In a fast food restaurant, the concept keyboard belonging to the cashier’s till may use images to represent each type of meal available to purchase, or each size of drink that can be chosen.

Traditional ‘overlay’ concept keyboards are now being replaced with virtual concept keyboards using touchscreens.

Typical applications for concept keyboards

• Cashier tills, e.g. fast food restaurant

Benefits of concept keyboards

• Reduces the training required as they are easy to use
• Ideal when options/choices are few
• May speed up data entry

Drawbacks of concept keyboards

• Not suitable for large amount of options/choices
• Not suitable for all tasks

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Microphone

What is a microphone?

Microphones are input devices that take analogue sound waves and converts them into electrical signals, suitable for a computer to understand.

Microphones play an important role in speech recognition, a technology that is gaining in popularity and usage.

Typical applications for microphones

• Mobile phones, e.g. for traditional phone calls or VoIP
• Tablets and laptops, e.g. for video conferencing or VoIP
• Voice recognition systems, e.g. to input data and commands using spoken words

Benefits of microphones

• Allows disabled users to give instructions to a computer
• Enables the use speech recognition software
• Allows voice calls and the audio in video calls (VoIP)

Drawbacks of microphones

• Speech recognition accuracy can sometimes be hit and miss

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Digital Camera

What is a digital camera?

Digital cameras are input devices that capture images (and sometimes video) digitally.

Digital cameras use an image sensor chip to capture the image, rather than the film used by a traditional camera.

The images recorded on a digital camera are stored on memory cards, although some may have a limited amount of external memory of its own.

Digital cameras feature an LCD screen which allow you to preview and review your images, plus change menu settings.

Typical applications for digital cameras

• Professional photography, using DSLRs
• Amateur photography
• Speed cameras, e.g. using OCR software to read registration plates

Benefits of digital cameras

• Images can be reviewed immediately via the screen
• Images can be copied or edited easily on a computer
• Images can be automatically added to sharing sites

Drawbacks of digital cameras

• A good camera is needed to match the quality of traditional film
• Large capacity memory cards are needed if shooting lots of photos

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2D Scanners

What is a 2D scanner?

2D scanners perform the task of turning a 2D document or image into a digital file.

They come in two varieties, flatbed or handheld.  Some printers have inbuilt flatbed scanners.

The functionality of 2D scanners is enhanced when combined with OMR and OCR software.  For example, OCR software can convert scanned in text into a computer readable form.

Typical applications for 2D scanners

• Converting a hard copy of a document into an electronic / digital form for storage, sending or editing
• Reading passports

Benefits of 2D scanners

• Can produce high quality digital copies of a document
• Digital copies of documents can be sent electronically, stored securely, or edited on the computer

Drawbacks of 2D scanners

• Scanned documents use a lot of computer storage space

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3D Scanners

What is a 3D scanner?

A 3D scanner is an input device that creates a 3D model of the object scanned.

Scanning can be achieved either by using lasers, light, radio waves or x-rays.

Typical applications for 3D scanners

• Security screenings to check for weapons or restricted objects
• Creating a computer model ready for 3D printing
• Biometric devices
• Turning real people into gaming characters

Benefits of 3D scanners

• The technology can scan through clothing and other materials
• 3D scanning provides accurate 3D computer models

Drawbacks of 3D scanners

• Repeated exposure to x-rays can be harmful

Test your knowledge of input devices with our quick quiz.

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Interactive Whiteboard

What is an interactive whiteboard?

Developed long before touchscreens became affordable, interactive whiteboards combine a large touch sensitive board with a projection screen.

Interactive whiteboards are versatile input devices, allowing navigation and drawing/writing via your finger or special dummy pens.

Typical applications for interactive whiteboards

• Classrooms
• Business board rooms and training centres

Benefits of interactive whiteboards

• Large display allowing multiple people to view at once
• Interactivity helps learning and presentations
• Very versatile
• Text and drawings made using the special pen can be captured and stored for later use

Drawbacks of interactive whiteboards

• Requires the interactive board, a projector and a computer
• Difficult to complete tasks that require precision accuracy
• Can be difficult to view in bright light

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Touchscreens

What is a touchscreen?

A touchscreen is an electronic visual display that also incorporates an input device that responds to touch.  This allows users to select options from a screen by simply touching them.

There are three main types of touchscreen technology, all of which are outlined below.

Drawbacks of touchscreens

• Difficult to complete tasks that require precision accuracy
• Difficult to use if damaged

Capacitive touchscreens

Electrical current is sent from the four corners of the screen.

When your finger (or stylus) touches the screen, the current changes.

This allows the location of the touch to be calculated.

Benefits	Drawbacks
Good visibility in sunlight	Glass screen can shatter/break on impact
Very durable surface	Cannot use wearing standard gloves
Allows multi-touch

Resistive touchscreens

Resistive touchscreens use multiple layers of material that transmit electrical currents.

When the top layer of the screen is pushed/touched into the bottom layer the electrical current changes.

This allows the location of the touch to be found.

Benefits	Drawbacks
Inexpensive to manufacture	Poor visibility in sunlight
Can use stylus, finger, gloved finger or pen to operate	Vulnerable to scratching
	Wears through time
	Does not allow multi-touch

Infra-red touchscreens

Infra-red touchscreens use a pattern of LED infra-red beams to form an ‘invisible’ grid on the screen.

Sensors detect where the screen has been touched by detecting a break in the infra-red beams.

The position of touch is then calculated.

Benefits	Drawbacks
Good durability	Expensive to manufacture
Allows multi-touch	Glass screen can shatter/break on impact
Can use stylus, finger, gloved finger or pen to operate	Sensitive to dust and dirt

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Barcode Reader

What is a barcode?

A barcode is a machine readable code represented by an image consisting of black and white lines.  The lines in a barcode relate to numbers 0 to 9.

Black and white surfaces reflect light differently, with black bars reflecting less light than white bars.

Sensors are used to capture the amount of light reflected and the different reflections are converted to binary values.

This is how the scanner is able to identify the corresponding digits from the lines.

Scanning a barcode is easier and faster than typing in the series of numbers by hand.

A barcode identifies an item, it does not store any further information relating to it, this is achieved by looking up the value in a database.

When used in retail, you no longer need to trust sales staff to remember or key in the prices of products.

Accurate receipts can be given to customers whilst the business benefits from reliable sales and stock reports.

Prices can be changed immediately without changing any barcodes.

Typical applications for barcodes

• Tracking/identifying items in warehouses and factories
• Retail checkouts, e.g. to find product prices and descriptions; automatic stock control management from a database
• Airports, e.g. tracking luggage
• Library systems, e.g. tracking books and borrowers

Benefits of barcodes

• Quick and easy to identify products
• Additional information can be easily retrieved from a database
• Allows the use of automated stock control and sales reports
• Related information (e.g. product price) is changed in the database, meaning the barcode always remains the same

Drawbacks of barcodes

• Difficult to use if damaged
• Requires expertise to setup a database

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QR Code Reader

What is a QR code?

A QR code is a computer generated pattern capable of holding a modest amount of data.

This data is accessed when the QR code is read by a QR scanner.

We often see a smartphone used as the scanning device although this doesn’t have to be the case.

QR codes often store simple data such as a URL address, contact information, calendar entries and product details (in factories and warehouses etc).

Typical applications for QR codes

• Packaging
• Promotional materials
• Warehouses

Benefits of QR codes

• Data is stored within the pattern, so no need for a connected database
• Simple and quick way to store and retrieve information
• Can store a variety of information

Drawbacks of QR codes

• Changing the data alters the pattern, so not suitable for information that changes regularly, e.g. prices.
• People need a device (and software) that can read the QR code

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Graphics Tablet

What is a graphics tablet?

A graphics tablet is an input device that uses a special pen like stylus to allow the user to “hand draw” images into a computer system.

This allows artists to draw in a similar way to how they naturally would using pen and paper; something difficult to achieve with a mouse.

Graphics tablets can also be used for day to day data input and are especially useful for capturing handwritten signatures.

Some graphic tablets also incorporate an LCD screen for a more realistic experience.

Typical applications for graphics tablets

• Graphic design and drawing
• Digital signatures

Benefits of graphics tablets

• Allows artists to draw in a fashion close to how they naturally would, giving them finer control
• Some models are pressure sensitive (which mice are not)
• Can be used for signatures and other general computing tasks
• Come in a range of sizes and suitable for many budgets

Drawbacks of graphics tablets

• High end versions can be expensive

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Test your knowledge of input devices with our quick quiz.

Updated: 08/16/2021 by

An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. The picture shows a Logitech trackball mouse, an example of an input device.

The keyboard and mouse are the most commonly used or primary input devices on a computer. However, other devices also input data into a computer.

Types of input devices

• Audio conversion device
• Barcode reader
• Biometrics (e.g., fingerprint scanner).
• Business card reader
• Data collection device
• Digital camera and digital camcorder.
• EEG (electroencephalography)
• Finger (with touch screen or Windows Touch).
• Gamepad, balance board, dance pad, joystick, paddle, steering wheel, pedals, and Microsoft Kinect.
• Gesture recognition
• Graphics tablet
• Guitar, MIDI keyboard, or other musical instrument connected to the computer.
• Keyboard
• Light gun
• Light pen
• Magnetic ink (like the ink found on checks).
• Magnetic stripe reader
• Medical imaging devices (e.g., X-ray, CAT scan, and ultrasound images).
• Microphone (using voice speech recognition or biometric verification).
• MIDI keyboard
• MICR
• Motion-sensing mouse or game controller
• Mouse, touchpad, or other pointing devices.
• OMR (optical mark reader)
• Paddle
• Pen or stylus
• Punch card reader
• Remote
• RFID reader
• Scanner
• Sensors (e.g., heat and orientation sensors).
• Sonar imaging devices
• Stylus (with touch screen).
• Touch-sensitive pad (like pad on early iPod)
• Touch screen
• Voice (using voice speech recognition or biometric verification).
• Video capture device
• Virtual device
• VR helmet and gloves
• Webcam
• Yoke

Note

Although OMR cards and punch cards contain data, they are not considered input devices by themselves. It is the readers that interpret the cards that are considered the input device.

What are the input devices of my computer?

Every computer comes with a keyboard and a mouse (touchpad with laptop), which are considered input devices. As far as other input devices, it depends on what was included with your computer and what’s connected. The best method of determining your computer’s input devices is to go through the above list with the types of input devices.

What does an input device send to a computer?

What an input device sends (inputs) to a computer depends on the device. Additionally, all input devices send data from the device over a cable or wireless transmission to the computer. For example, as you move a computer mouse, the data sent to the computer is the X-Y axis movements used to display the mouse cursor on the screen. You can see a live example of this on our x-axis definition.

Why does a computer need an input device?

Today, input devices are important because they let you interact with and add new information to a computer. For example, if a computer had no input devices, it could run by itself, but there would be no way to change its settings, fix errors, or other various user interactions. Also, if you wanted to add new information to the computer (e.g., text, command, document, picture, etc.), you wouldn’t be able to do so without an input device.

Input devices for physically challenged users

In addition to the list mentioned above, other specially designed input devices are designed for the physically challenged. Below is a list of examples of these devices.

• Eye-tracking — A specialized camera to track a user’s eye to perform actions or move a mouse pointer.
• Foot mouse — Mouse pointer controlled using pedals with your feet.
• Gesture recognition — Specialized device to detect different gestures, including facial expressions, reading lips, and sign language.
• Head-mounted pointer — A pointer can be mounted to a hat or band to track and control the mouse pointer.
• Joystick — A joystick next to the computer or on a wheelchair to control a mouse pointer. In addition to your hand, a joystick can be operated using your arm, chin, foot, lips, or tongue.
• Voice recognition — Using your voice to control computer functions and typing on a computer.

Hardware terms, HID, Input, Input/output device, Keyboard terms, Mouse terms, Output device, Pointing device

Also found in: Thesaurus.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

1.

data input device — a device that can be used to insert data into a computer or other computational device computer keyboard, keypad — a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard joystick — a manual control consisting of a vertical handle that can move freely in two directions; used as an input device to computers or to devices controlled by computers computer peripheral, peripheral, peripheral device — (computer science) electronic equipment connected by cable to the CPU of a computer; «disk drives and printers are important peripherals» digital scanner, image scanner, scanner — an electronic device that generates a digital representation of an image for data input to a computer

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

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Государственное бюджетное общеобразовательное учреждение среднего профессионального образования

«Казанский техникум информационных технологий и связи»

МЕТОДИЧЕСКАЯ РАЗРАБОТКА

Открытого урока

На тему: «Input devices»

По дисциплине: «Иностранный язык»

Для специальности: 090201 «Компьютерные системы и комплексы»

Автор-составитель

преподаватель ЦК ООД

Хайрутдинова Т.А.

Казань 2017

Содержание

ВВЕДЕНИЕ………………………………………………………………4

План открытого урока…………………………………………………….…..5

Ход урока………………………………………………………………..……..9

Технологическая карта урока………………………………………………………………..11

Детальный ход урока…………………………………………………………13

Рабочая тетрадь к открытому уроку…………………………………………21

Список использованных источников……………………………………26

Введение

Методическая разработка проведения открытого урока по дисциплине «Иностранный язык» на тему «Input devices» полностью соответствует рабочей программе специальности  090201 «Компьютерные системы и комплексы»и соответствует требованиям к минимуму содержания и уровню подготовки студентов по указанной дисциплине.

В наше время требования к качеству подготовки конкурентоспособных кадров и формированию знаний и умений будущих программистов значительно возросли. По этим причинам содержание дисциплины «Иностранный язык» должно соответствовать современному уровню подготовки специалистов и предусматривать изучение современных технологии, достижений техники.

Методическая разработка ставит перед собой цель показать возможность проведения современного урока английского языка с использованием раздаточного материала, информационных технологий и современных ТСО.

В методической разработке представлен ход урока, в котором сочетаются традиционные формы урока с использованием компьютерных технологий. (При объяснении нового материала использовалась мультимедийная система для показа презентации и упражнений, а так же для аудирования).

Использование этих информационных технологий усиливает результативность проводимых уроков. Повышается возможность презентации большего количества материала одновременно, и за счет наглядности материал усваивается успешнее.

Государственное бюджетное общеобразовательное учреждение среднего профессионального образования

«Казанский техникум информационных технологий и связи»

План

Открытого мероприятия по дисциплине «Иностранный язык »

на тему «Input devices»

Преподаватель Хайрутдинова Т.А.

Казань 2017

План открытого урока

Учебная дисциплина: «Иностранный язык»

Специальность: 090201 «Компьютерные системы и комплексы»

Курс: 2

Преподаватель: Хайрутдинова Татьяна Александровна

Тема урока: «Input devices» (Устройства ввода информации)

Тип урока: урок изучения нового учебного материала.

Вид урока: практическое занятие

Место проведения: учебная аудитория

Цели урока:

1. Обучающая

формирование навыков аудирования и говорения;

совершенствование умений и навыков использования лексического и грамматического материала темы;

овладение различными видами речевой деятельности;

расширение и углубление знаний по использованию специальной лексики;

2. Развивающая:

способствовать развитию самостоятельности, логического мышления, систематизации полученной информации;

развитие аналитического мышления, т.е. умение анализировать, обобщать, сопоставлять данные и делать выводы;

развитие умения общаться, а также таких черт характера, как трудолюбие, целеустремленность, активность;

формирование навыков и умений интеллектуального труда, развитие любви к предмету;

развитие памяти и мышления на английском языке;

3. Воспитательная:

способствовать повышению познавательного интереса к

дисциплине «Иностранный язык»;

развитие сообразительности и предоставление возможности самореализации;

формирование потребности в приобретении дополнительных знаний в области изучения иностранных языков;

Методы обучения: интерактивный метод (выполнение интерактивных упражнений и заданий, демонстрация презентаций, прослушивание аудиозаписей).

Метод преподавания: коммуникативный метод (усвоение стандартных навыков, автоматизация их применения, развитие умений в свободных ситуациях общения, организация и осуществление учебно-познавательной деятельности в сочетание с различными формами активизации студентов).

Методы воспитания: методы организации деятельности и формирования опыта общественного поведения личности (метод создания воспитывающих ситуаций); стимулирование активизации студентов путем словесного поощрения.

Междисциплинарные связи: Информационные технологии.

Внутридисциплинарные связи с темами: «Keyboard and mouse», «Output devices», «Storage devices».

Оснащение урока:

техническое: мультимедийная система, компьютер.

дидактическое: раздаточный материал: рабочая тетрадь с текстом и упражнениями на каждого студента.

Литература: -Eric H.Glendinning, John McEwan, «Basic English for Computing», Oxford University Press, 2001

Oxford University Press, 2003

-Eric H.Glendinning, John McEwan, «Basic English for Computing», Teacher`s Guade, Oxford University Press, 2001

Ход урока:

1.Организационный момент: 2-3 мин.

-приветствие;

-проверка готовности аудитории (визуальный осмотр ТСО, доска, тряпка, фломастер,);

-отметка отсутствующих студентов в журнале, запись в журнале.

2. . Основная часть урока:

2.1. Подготовительный момент: 3-4 мин.

-вступительное слово преподавателя;

-объявление темы урока, цели урока и формы его проведения.

2.2. Актуализация опорных знаний: 13-15 мин.

а) устный фронтальный опрос по пройденным темам: 3 мин.

б) компьютерное тестирование:10-12 мин .

2.3. Объяснение нового материала: 45 мин.

-презентация по теме «Input devices»

-выполнение упражнения;

-аудирование:

-проверка ответов

-проведение физкультпаузы;

-выполнение упражнения;

-говорение:

-ответы на вопросы преподавателя.

-выполнение упражнений

3. Заключительная часть урока: 15-17 мин.

-обобщающее повторение пройденного : 5-7 мин.

-обобщение изложенного материала, вывод по результатам закрепления.

— игра «The best command of computer managers» (Лучшая команда менеджеров по продаже компьютеров): 10 мин.

3.1. Анализ ответов студентов и выставление оценок: 2 мин.

3.2. Задание на дом: 2 мин.

-сделать презентации на тему «Modern input devices. Advantages and disadvantages» (Современные устройства ввода. Преимущества и недостатки).

3.3. напоминание дежурным об их обязанностях: 1 мин.

Преподаватель Хайрутдинова Т.А.

Технологическая карта урока

Преподаватель Хайрутдинова Т.А.

Детальный ход урока.

Good morning students. Take your seats please. I am glad to see you. Who is on duty today?

I am on duty.

Is everybody here?

Everybody is here.

What day is it today?

It is Wednesday.

What is the date?

It is the sixteenth of March.

O.k. Let `s begin our lesson. Tell me please what units have we studied last lessons? What did we say about?

We told about computers, types of computers, keyboard and mouse, parts of a computer.

Today the subject of our lesson is Input devices. Open your copybooks, write down the subject of the lesson: Input Devices. Before the studying of new subject let’s remember last units. Tell me what is a computer?

Computer is an electronic device for processing data.

What types of computers do you know?

Notebooks, laptops, personal computers, minicomputers, microcomputers, mainframes, subnotebooks, palmtops and other.

Where can we use computers?

We can use computers at home, at school, at work and so on.

What is a keyboard?

Keyboard is an input device for inputting the text.

And what is a mouse?

Mouse is a pointing input device.

Thank you. Now you have to go to computers in our classroom. Sit down next to computer. You may see the test on your desktops. You have three exercises. You must answer the questions. You have to do it during ten minutes. Begin please. (Test).

Well done. I’ll tell your results at the end of the lesson. //

So, students, the subject of our lesson is Input Devices. Today we have to study all Input Devices: how they work and where we can use them. And what is Input Device? Write in your copybooks: “Input Devices are devices for inputting information or data into a computer”. And what Input Devices do you know?

Keyboard, mouse, scanner, microphone, graphical tablet etc.

Well. Look at the board please. You will watch the presentation about IDs. You have to know what groups of IDs exist. (Presentation “Input devices”).

So students tell me what groups of IDs exist?

Keyboards, Pointing devices, Audio/Visual devices, Reading texts/codes.

Well done! Now let’s do Exercise 1. You see 3 groups of IDs. You must take out unnecessary word from each group.

keyboard, mouse, PIN pad, numeric pad

microphone, scanner, webcam, keyboard, digital camera

mouse, scanner, touch pad, graphics tablet, tracker ball

Now let`s check this task.

mouse

keyboard

scanner

O.k. You are super. Let ’s do Exercise 2. Say what group includes:

keyboard, scanner, webcam, PIN pad, digital camera, touch pad, numeric pad, microphone, tracker ball, mouse, graphics tablet.

Let`s check this task.

keyboard — keyboards

scanner — audio/visual devices

webcam — audio/visual devices

PIN pad — keyboards

digital camera — audio/visual devices

touch pad — pointing devices

numeric pad — keyboards

microphone — audio/visual devices

tracker ball — pointing devices

mouse — pointing devices

graphics tablet — pointing devices

Reading.

Thank you. And now let’s do Exercise 3. Each text describes following input devices: webcam, mouse, joystick microphone, barcode reader. Complete these texts.

A __________ is a device that converts acoustical pressure waves (or sound) into an electrical voltage wave or signals. All microphones have a diaphragm, membrane, or other mechanical element in them that vibrates sympathetically in response to the arriving acoustic wave fronts.

A ___________is used to read the code. The reader uses a laser beam that is sensitive to the reflections from the line and space thickness and variation.

In computing, a _________ is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a ________consists of an object held under one of the user’s hands, with one or more buttons. It sometimes features other elements, such as «wheels», which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input.

__________ is often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick.

A _________ is a video camera which feeds its images in real time to a computer or computer network, often via USB, Ethernet or Wi-Fi.

Well done. Let`s check this exercise.

A microphone is a device that converts acoustical pressure waves (or sound) into an electrical voltage wave or signals. All microphones have a diaphragm, membrane, or other mechanical element in them that vibrates sympathetically in response to the arriving acoustic wave fronts.

A barcode reader is used to read the code. The reader uses a laser beam that is sensitive to the reflections from the line and space thickness and variation.

In computing, a mouse is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the user’s hands, with one or more buttons. It sometimes features other elements, such as «wheels», which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input.

Joystick is often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick.

A webcam is a video camera which feeds its images in real time to a computer or computer network, often via USB, Ethernet or Wi-Fi.

Listening

You are the best. Let’s do Exercise 4. Listen to the recording and label the steps in the process with these captions.

a) The computer compares the binary code with its stored vocabulary.

b) The user says a word into a microphone.

c) The screen displays the correct word.

d) The speech recognition board converts the signals into binary numbers.

e) The microphone converts the word from audio signals into electrical signals.

Now listen to the recording to check your answer.

The user says a word into a microphone.

The microphone converts the word from audio signals into electrical signals.

The speech recognition board converts the signals into binary numbers.

The computer compares the binary code with its stored vocabulary.

The screen displays the correct word.

O.k. Well done. You are the best. Now let ’s consider grammar rule about Function. Write down in your copybooks “Function”. Well students. If we want to say that one device is used for different purposes we can use for kinds of function:

1) We can use the Passive Voice. In Passive Voice we always use to be in its appropriate form and the past participle of main verb (V3(-ed)) – (use-used, do-done).

to be+ V3(-ed)

Example:

-Joysticks are used in computer games.

2) If we want to say that device is used with definite purpose we use the preposition for. And if we use the preposition for we must use –ing ending on the verb after preposition for.

to be + V3(-ed) + for + V-ing

Example:

-A microphone is used for inputting sound.

3) Also we may use the function with the Modal Verb “can”

Example:

— You can use a scanner to input text.

4) And finally we may use the function with the form of Gerund and the Modal Verb “can”

Example:

—Using a scanner, you can input printed drawing directly into a computer.

Now let’s do exercise 6. Explain how you understand this rule about function. (You may explain in Russian).

Speaking

Very well. You are excellent. Now let’s do exercise 7. Work in groups. Describe the use of each device in column. Use these structures from the Language work section.

…is/are used in …

…is/are used for … -ing

…Using … you can…

You can use … to …

Example: You can use a mouse to select from a menu.

1 2

Film camera Light pen

Microphone Joystick

Scanner Barcode reader

Webcam Digital camera

Graphical tablet Keyboard

Writing

Very well! Do exercise 8. Fill in the blanks in this comparison of digital cameras and film cameras with the help of words in the table:

Digital cameras don’t use film. You take pictures on to solid state memory. Then you ____________ them to a _____________. You can ______________ and improve the pictures in your PC. Then you can ____________ them, add them to your ____________, or display them on the screen. Digital cameras are more expensive than film cameras.

Film cameras are cheaper but each picture costs a lot because there are processing costs. The quality of film camera pictures is much ____________ than digital cameras but you have to ______________ the pictures to transfer images to a PC.

scan, PC, download, website, change, better, print.

And now let’s check it.

Digital cameras don’t use film. You take pictures on to solid state memory. Then you download them to a PC. You can change and improve the pictures in your PC. Then you can print them, add them to your website or display them on the screen. Digital cameras are more expensive than film cameras.

Film cameras are cheaper but each picture costs a lot because there are processing costs. The quality of film camera pictures is much better than digital cameras but you have to scan the pictures to transfer images to a PC.

Well done my dear! Now let`s check your hometask. Your hometask was the presentation about the best computer in the world. Game is called “The best team of computer managers”. Let’s play game. You are sellers. You must sell the best computer in the world to our guests. Let’s begin.(Presentations).

Dear guests tell us please what computer will you buy? What is the best team of computer managers?

We will buy computer of the second team.

Thank you! And now write down your hometask please. Make a presentation about modern Input devices, about their advantages and disadvantages. (Use the function).

And about your marks…

Students on duty clean the room, please. Thank you for the lesson. The lesson is over. Good bye.

 

Exercise 1. Identify which word is unnecessary in each group:

-keyboard, mouse, PIN pad, numeric pad

-microphone, scanner, webcam, keyboard, digital camera

-mouse, scanner, touch pad, graphics tablet, tracker ball

Exercise 2. What group includes:

keyboard, scanner, webcam, PIN pad, digital camera, touch pad, numeric pad, microphone, tracker ball, mouse, graphics tablet.

Reading

Exercise 3. Each text describes following input devices: webcam, mouse, joystick microphone, barcode reader.

1. A __________ is a device that converts acoustical pressure waves (or sound) into an electrical voltage wave or signals. All microphones have a diaphragm, membrane, or other mechanical element in them that vibrates sympathetically in response to the arriving acoustic wave fronts.

2. A ___________is used to read the code. The reader uses a laser beam that is sensitive to the reflections from the line and space thickness and variation.

3. In computing, a _________ is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a ________consists of an object held under one of the user’s hands, with one or more buttons. It sometimes features other elements, such as «wheels», which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input.

4. __________ is often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick.

5. A _________ is a video camera which feeds its images in real time to a computer or computer network, often via USB, Ethernet or Wi-Fi.

Exercise 4.

a) The computer compares the binary code with its stored vocabulary.

b) The user says a word into a microphone.

c) The screen displays the correct word.

d) The speech recognition board converts the signals into binary numbers.

e) The microphone converts the word from audio signals into electrical signals.

Exercise 5. Now listen to the recording to check your answer.

Language work: Function

We can describe the function or use of a device in different ways.

1) We can use the Passive Voice. In Passive Voice we always use to be in its appropriate form and the past participle of main verb (V3(-ed)) – (use-used, do-done).

to be+ V3(-ed)

Example:

-Joysticks are used in computer games.

2) If we want to say that device is used with definite purpose we use the preposition for. And if we use the preposition for we must use –ing ending on the verb after preposition for.

to be + V3(-ed) + for + V-ing

Example:

-A microphone is used for inputting sound.

3) Also we may use the function with the Modal Verb “can”

Example:

— You can use a scanner to input text.

4) And finally we may use the function with the form of Gerund and the Modal Verb “can”

Example:

—Using a scanner, you can input printed drawing directly into a computer.

Exercise 6. Now explain how you understand this rule about Function (You may explain in Russian).

Speaking

Exercise 7. Work in groups. Describe the use of each device in column. Use these structures from the Language work section.

…is/are used in …

…is/are used for … -ing

…Using … you can…

You can use … to …

Example: You can use a mouse to select from a menu.

1 2

Film camera Light pen

Microphone Joystick

Scanner Barcode reader

Webcam Digital camera

Graphical tablet Keyboard

Exercise 8. Fill in the blanks in this comparison of digital cameras and film cameras with the help of words in the table:

Digital cameras don’t use film. You take pictures on to solid state memory. Then you ____________ them to a _____________. You can ______________ and improve the pictures in your PC. Then you can ____________ them, add them to your ____________, or display them on the screen. Digital cameras are more expensive than film cameras.

Film cameras are cheaper but each picture costs a lot because there are processing costs. The quality of film camera pictures is much ____________ than digital cameras but you have to ______________ the pictures to transfer images to a PC.

scan, PC, download, website, change, better, print.

Список использованных источников

Eric H.Glendinning, John McEwan, «Basic English for Computing», Oxford University Press, 2001, Oxford University Press, 2003

Eric H.Glendinning, John McEwan, «Basic English for Computing», Teacher`s Guade, Oxford University Press, 2001

Реан А.А., Бордовская Н.В. Педагогика. Учебник для вузов СПб: Издательство “ Питер”,2000. 304 с.

Home

Computer Fundamentals

Input Devices of Computer

Computers are essential for this technological era. They are helping people in
almost every field and making life easier. We cannot think of a world without
computers because they are working efficiently and with incredible speed. We
cannot communicate with a computer without an input device. Although the
computer can work on its own, we will neither be able to modify its settings
nor add new data to the computer.

This article covers most of the input devices of a computer. Before discussing
computer input devices, let’s first understand the definition of an input
device:

Definition of Input Device

An input device is essentially a piece of instrument or hardware that allows
users to provide data, information, or control instructions to a computer used
for interaction and control. Data is entered into a computer in a raw format, which is converted into computer understandable language by input devices and processed by a central processing unit (CPU) to produce output. 

In simple terms, an input device is a kind of peripheral device that helps
communicate with processing units of the computer.

What are the Input Devices?

Feeding instructions or data into a computer machine is done using hardware
devices. During the process, the data is referred to as the
input to a computer machine while
the device or hardware device used to input the data is referred to as the
input device or
input unit.

The input devices can be divided into different categories, such as pointing
devices, keyboard devices, speech or voice input devices, draw devices,
recognition devices, etc. The most common input devices of a computer system are listed below:

Computer Input Devices

• Input Devices of Computer List [Show/Hide]
  • • Keyboard
  • • Mouse
  • • Joystick
  • • Touchpad
  • • Light Pen
  • • Track Ball
  • • Scanner
  • • Graphic Tablet
  • • Stylus
  • • Touchscreen
  • • Microphone
  • • Digital Camera
  • • Webcam
  • • Magnetic Ink Card Reader
  • • Optical Character Reader
  • • Bar Code Reader
  • • QR Code Reader
  • • Optical Mark Reader
  • • Biometric Devices
  • • Motion Capturing Devices

Functions of Input Devices

Because input devices perform essential functions for computers, they are
considered as parts of computer systems. They are electro-mechanical devices
that help users input raw data into a computer. However, computers do not
understand data in raw formats. Therefore, input devices convert raw data into
the appropriate format or language that can be easily understood by a
computer. The translated or converted data is stored in primary memory and
sent to the CPU for further processing.

In other words, the computer accepts raw input from users and translates the
received input into machine language with the help of input devices. This is
the primary function of the input device on the computer.

Examples of Input Devices

Several types of input devices are available to enter raw data into a
computer. Each device has its own function, benefits, and drawbacks. The
following are examples of commonly used input devices:

Keyboard

The keyboard is one of the primary input devices, which helps in entering data
and commands in a computer. The layout of the keyboard is almost identical to
a traditional typewriter with additional keys that help in performing specific
tasks. A normal keyboard usually has a variety of keys, such as alphabetic
character keys, function keys, number keys, arrow keys, and control keys.

The keyboard can be connected to a computer using USB (for a wired keyboard)
or Bluetooth (for a wireless keyboard). There is no specific rule for defining
the number of keys; however, most keyboards come in two sizes — 84 keys or
101/102 keys. Nowadays many major brands are also making keyboards with 104
keys or 108 keys for Windows.

Laptops come with inbuilt, more compact keyboards, which help make the laptop
smaller and lighter. Besides, most modern devices (such as smartphones,
tablets, and convertible touch screen laptops) come with on-screen virtual
keyboards that help to input the data into a computer. Most English language
keyboards have a QWERTY layout. Before the keyboard, punch cards and paper
tape were used to enter data and commands into computers.

Mouse

A mouse is the most common and very popular pointing device that helps
interact with a computer through a process called ‘point and click’. This is
mainly used to move a cursor on the computer’s screen and click on the
corresponding object using its buttons (usually left, right, and middle key
roller buttons). 

The left button helps select items while the right button helps display menus.
The scroll wheel mainly helps to move the scrollbar up and down while surfing
the web or reading documents. Some advanced mouse may also have additional
buttons to perform specific tasks. Like the keyboard, the mouse can be both
wired and wireless.

Previously, the mouse used an integrated ball and roller, known as a
mechanical mouse, to track the cursor move. The modern mouse uses optical
technology (laser) to control or track the movements of the cursor; such a
mouse is called an optical mouse. 

Joystick

Joysticks are widely used to play games on a computer. They help control the
characters and vehicles of the game. It can be a standalone device or can be
included with multiple buttons and triggers to add options to perform more
in-game features.

It can also be used as a pointing device like a mouse. Essentially, a joystick
is a handle that has a spherical ball at both ends (upper and lower). It can
be moved in all four directions, and its angle or moving direction is sent to
the computer as data.

Touchpad

The touchpad, also known as a trackpad, is an input device that is primarily
integrated with a laptop. It is a pointing device like a surface that can
detect the movements of our fingers and move the pointer accordingly. It is
nothing but a common alternative to a mouse and also helps to make computer
devices compact, small, and lightweight.

Touchpads were introduced mainly for laptops in the year 1990. Almost all
modern laptops come with a touchpad that helps to perform mouse functions.

Light Pen

A light pen is another pointing device that has the same structure as a pen.
It is a light-sensitive device consisting of a photocell and an optical system
placed in a small tube. It is mainly used to select on-screen items, draw
pictures, and write independently in document files using a computer screen.

When the tip of the light pen is moved on the computer screen and the button
on the pen is pressed, the photocell sensing element detects the screen
location and sends the corresponding signal to the CPU. This helps the CPU
detect pointer movements and clicks.

Track Ball

The trackball is a pointing device that is used to perform similar tasks as a
mouse. However, its mechanical structure is slightly different from that of
the mouse. Unlike a mouse, the trackball does not need to be moved around the
surface. Instead, the user is required to rotate a ball by turning the
fingers, which moves the pointer accordingly. The ball is inserted halfway
into an instrument and may contain various shapes, such as a ball, square, or
button.

Because the trackball does not need to be moved around the surface, it can be
perfect for low-lying areas. A trackball also has buttons to perform certain
functions like a mouse. Trackballs may be stand-alone devices or may be
attached to a keyboard, notebook, or laptop computer instead of a mouse.

Scanner

A scanner is an essential input device that allows us to convert a hard copy
document into a digital file (.jpeg, .png, .pdf, etc.). It basically uses
optical technology that reads characters or pictures from a paper and
transfers them to a computer’s drive for further manipulation. Like other
images, the scanned image can also be saved, edited, emailed, and printed
whenever we want. 

Scanners can be of different types, depending on the different functionality.
Some common types of scanners include a photo scanner, flatbed scanner, drum
scanner, sheet-fed scanner, handheld scanner, etc. 

Graphic Tablet

A graphic tablet, also known as a digitizer, is primarily used to digitally
transform hand-drawn artwork (.png, .jpeg, etc.). It is an input device with a
flat surface and comes with a stylus. Users can use a stylus to draw graphics
on a surface like we draw something on paper using a pen or pencil. 

The digitizer reads the signals and converts graphics to binary input. The
same drawing is displayed on a computer screen in real-time and can be saved,
edited, emailed, or printed. Besides, digitizers can also be used to
signatures or texts as handwritten texts or computer-typed texts. 

Stylus

A stylus is an input device used to draw or write on the surface of digitizers
and touch-screens. It was mainly introduced for digitizers and PDAs; however,
nowadays people are using a stylus with smartphones and tablets instead of
fingers. This is because it can result in better accuracy, and prevent oil and
scratches on the surface of the device from the user’s fingers. 

Touchscreen

Touchscreens are widely used due to the use of portable devices, such as
smartphones, notebooks, tablets, laptops, etc. Touch screens allow users to
input anything from moving or copying any object. Users can perform tasks
using only their fingers or stylus.

A touch screen is nothing but a touch-sensitive surface or monitor screen that
reads the signals of movement of the user’s fingers and performs certain tasks
accordingly. This can be seen nowadays in most devices, such as smartphones,
cameras, GPS screens, smartwatches, laptops, etc.

Microphone

A microphone, also known as a mic, is a type of voice input device that allows
users to input voice into a computer system. Mics typically read sounds from
the surroundings and convert analog sound waves into electrical signals. These
signals are further converted into digital form and stored in the computer.

Mics are used for many purposes, such as adding sound to a presentation,
chatting while online gaming, video conferencing, voice calling, recording,
voice recognition, and more. They can be of different types, depending on the
quality and specific functionality. Some common types of microphones include a
dynamic mic, ribbon mic, condenser mic, etc. 

Digital Camera

A digital camera is an input device that is used to capture images and video
in digital form. This allows users to store the captured media files in a
memory card and transfer them to the computer. Digital cameras use an image
sensor chip to capture images rather than the film used by traditional cameras
of the old days. 

Digital cameras are widely used nowadays. Many advanced digital cameras also
come with a screen that displays captured media as well as allows for many
other options, such as preview, zoom, delete, send, and more.

Webcam

Webcam can capture images and videos and convert them into a digital form. A
webcam is slightly different from a digital camera. Unlike digital cameras,
webcams cannot operate independently. They should be connected to a computer.
Also, webcams have no inbuilt memory; they use the computer’s storage to save
captured data.

Webcams are most commonly used for video chatting and live-streaming videos.

Magnetic Ink Card Reader (MICR)

MICR is a device that typically reads characters or texts that are printed on
paper using ink that contains particles of magnetic material. This device is
mainly used in banks to read the cheque number and bank code and to send a
signal to the computer to process a valid cheque. This reading process is
known as magnetic ink character recognition.

The MICR input device is very helpful for processing a large number of cheques
in a short duration and that too with almost 100% accuracy.

Optical Character Reader (OCR)

OCR is an input device used to read the handwritten or printed text and
convert them to digital text. This device reads text optically, character by
character, and converts the text into digital form to be stored in a computer.
It is mostly used in libraries and offices to copy texts from books and save
them digitally.

OCR scans the documents like a scanner and then converts them into two colored
bitmap versions (usually black and white). The light scanned areas are
considered as background, while dark areas are considered as characters.

Bar Code Reader

A bar code reader, also known as a barcode scanner, is an input device used to
read bar codes. Barcodes are data written as dark and light lines. Barcodes
are usually printed on various items for labeling details. It is also known as
a POS (point of sale) scanner.

The bar code reader scans the bar code image using light, which is then
reflected and translated into an analog signal. The signals are then decoded
and transformed into alphanumeric values to be stored in a computer connected
to a barcode reader. This ultimately helps in identifying product details and
prices from the database.

QR Code Reader

The QR code reader, also known as the QR code scanner, is an input device used
to read QR codes. QR codes are computer-generated patterns that store or hold
a modest amount of data. They do not require a database to store information
separately. QR code readers are almost identical in functionalities to bar
code readers.

Optical Mark Reader (OMR)

The OMR is a type of input device that optically scans the paper and
identifies the mark created using a pencil and pen. It is mainly used to
verify answers from answer sheets, which include answers to multiple-choice
questions.

Biometric Devices

Biometric devices are used to input a person’s scanned data based on
biological characteristics, such as facial structures, fingerprints, eye
corneas, etc. Most modern smartphones come with the feature of Face Unlock and
Fingerprint Unlock, making them a biometric device. However, they can also be
standalone devices. 

Motion Capturing Devices

These are the devices used to detect human movements and send them as input to
the computer. Such devices are mostly used in advanced gaming setups, which
allow players to play a game by moving their body parts accordingly. This
technique is also beneficial in animation and robotics.

Summary

This article covers 20 examples of input devices used for computers, including their names, pictures, and functions of each. The primary function of an input device is to convert raw
data given by users to machine language because computers only understand
machine language and not raw input. The input device is known as the
electro-mechanical component of a computer system.

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