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computer (input and output devices notes)

by Elwyn Ernser Published 3 years ago Updated 3 years ago

An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device.Aug 31, 2020

Which computer device acts both as input and output?

The devices that act as both input and output devices are called I/O or peripheral devices. e.g. USB Mass storage devices (Flash drive, pen drive, memory card, etc.)

What are the 10 input devices of computer?

  • 10 Examples of Input Devices. Keyboard. …
  • Keyboard. Keyboards are the most common type of input device. …
  • Mouse. …
  • Touchpad. …
  • Scanner. …
  • Digital Camera. …
  • Microphone. …
  • Joystick.

What are devices typically generate computer output?

Output device. For example, the image shows an inkjet printer, an output device that can make a hard copy of any information shown on your monitor, which is another example of an output device.Monitors and printers are two of the most common output devices used with a computer.

What are the two output devices in a computer?

OUTPUT DEVICES:

  • Monitor (LED, LCD, CRT etc)
  • Printers (all types)
  • Plotters
  • Projector
  • LCD Projection Panels
  • Computer Output Microfilm (COM)
  • Speaker (s)
  • Head Phone
  • Visual Display Unit
  • Film Recorder

More items...

What are 5 input and output device?

Computer related input devices are Keyboard, Mouse, Touchpad, TrackPoint, Scanner, Microphone, Digital Cameras, Barcode reader, Joystick, Webcam, etc. Output Devices: Few examples of output devices are Printers, Projector, Plotters, Monitor, Speakers, Head Phone, etc.

What is the 10 output device?

Examples include monitors, printers, speakers, headphones, projectors, GPS devices, optical mark readers, and braille readers.

What are the 10 input devices?

Computer - Input DevicesKeyboard.Mouse.Joy Stick.Light pen.Track Ball.Scanner.Graphic Tablet.Microphone.More items...

What is output and input device?

An input device is something you connect to a computer that sends information into the computer. An output device is something you connect to a computer that has information sent to it.

What keys can be seen on a keyboard?

Typing Keys, Numeric Keypad, Function Keys, Control keys, and Special Purpose Keys are available on the keyboard.

What is input to the computer?

Simply one can understand Input is data that a computer takes, on the other hand, the output is data that a computer transfers. Computers only work...

What do OCR and OMR stand for?

OCR stands for Optical Character Reader and OMR stands for Optical Mark Readers.

What kind of device is a speaker?

Speaker is an output device.

What is the importance of an output device?

Computer output devices obtain information from the computer and transmit data that has been processed by the computer to the user. Output devices...

List some of the names of input and output devices?

Input devices: Keyboard, Mouse, JoyStick, Light pen, Track Ball, Scanner, Graphic Tablet, Microphone, Magnetic Ink Card Reader (MICR), Optical Char...

What is an output device?

A piece of hardware/equipment that presents the result of the entered input, once it is processed, is called an output device. Several output devices display output in various ways such as images, text, hard copies, and audio/video. Following are some of the commonly used output devices used in a computer system:

What is the most basic input device?

The keyboard is the most basic and very commonly used input device which helps to input data to the computer. The layout of the buttons in a normally used keyboard is similar to the traditional typewriter, but there are a few additional keys provided by different manufacturers for performing additional functions.

What is a microphone?

A microphone or mic is a very common input device used to input sound that is then stored in a digital form. Nowadays microphones are used in almost every industry and devices related to sound recording or transmission.

What is the main function of a computer?

The main functioning of a computer system is based on the combined usage of both input and output devices. Utilizing an input device, a user can give directions to the computer to run and the device reverts to the user’s action through an output device. Let’s understand first what is an input unit and output unit.

What is the most common output device used with a computer to listen to the sound?

Speakers. Computer speakers are the most popular output devices used with a computer to listen to the sound. These speakers receive audio as input either in analog or digital form and generate sound as an output.

How many keys does a keyboard have?

Normally available keyboards in the market were of two sizes 84 keys and 101/102 keys, but now keyboards with 104 keys or 108 keys are also possible for Windows and Internet. Following is the description of the buttons on the keyboard:

What is the most commonly used pointing device?

Mouse. It is the most commonly used pointing device. It is a very famous cursor-control device and the earlier versions of it were built over a small palm-size box with a round ball at its base, which tracks the movement of the mouse and feeds digital signals to the CPU when the mouse buttons are pressed.

How do I input data and instructions on a computer?

The data and instructions are input by typing on the keyboard. The message typed on the keyboard reaches the memory unit of a computer. It’s connected to a computer via a cable. Apart from alphabet and numeral keys, it has other function keys for performing different functions. (2) Mouse : It’s a pointing device.

What is the device that reads data and converts it to a form that a computer can use?

Input and Output Devices of Computer. The devices which are used to input the data and the programs in the computer are known as “Input Devices“. or Input device can read data and convert them to a form that a computer can use.

How does a micro phone work?

A micro phone is used to convert human speech into electric signals. The signal pattern is then transmitted to a computer when it’s compared to a dictionary of patterns that have been previously placed in a storage unit of computer. When a close match is found, the word is recognized.

What is the ball on a mouse?

Most of the mouse’s have a ball beneath them, which rotates when the mouse in moved. The ball has 2 wheels of the sides, which in turn mousse with the movement of the ball. The sensor notifies the speed of its movements to the computer, which in turn moves the cursor/pointer on the screen. (3) Scanner : Scanners are used to enter information ...

What is an input/output device?

An input/output device, often known as an IO device, is any hardware that allows a human operator or other systems to interface with a computer. Input/output devices, as the name implies, are capable of delivering data (output) to and receiving data from a computer (input).#N#An input/output (I/O) device is a piece of hardware that can take, output, or process data. It receives data as input and provides it to a computer, as well as sends computer data to storage media as a storage output.

What is an I/O device?

An input/output (I/O) device is a piece of hardware that can take, output, or process data. It receives data as input and provides it to a computer, as well as sends computer data to storage media as a storage output. There are many IO Devices available, some of them are:

What is scanner on a computer?

A scanner is an input device that functions similarly to a photocopier. It’s employed when there’s information on paper that needs to be transferred to the computer’s hard disc for subsequent manipulation. Scanner collects images from the source and converts them to a digital format that may be saved on a disc.

What is a joystick?

A joystick is a pointing device that is used to move the cursor on a computer screen. A spherical ball is attached to both the bottom and top ends of the stick. In a socket, the lower spherical ball slides. You can move the joystick in all four directions. The joystick’s function is comparable to that of a mouse.

How many keys does a keyboard have?

Generally, keyboards come in two sizes: 84 keys or 101/102 keys, but currently keyboards with 104 keys or 108 keys are also available for Windows and the Internet.

What is a bar code reader?

A bar code reader is a device that reads data that is bar-coded (data that is represented by light and dark lines). Bar-coded data is commonly used to mark things, number books, and so on. It could be a handheld scanner or part of a stationary scanner.

What is a monitor?

Monitor. Monitors, also known as Visual Display Units (VDUs), are a computer’s primary output device. It creates images by arranging small dots, known as pixels, in a rectangular pattern. The amount of pixels determines the image’s sharpness.

What is the purpose of a mouse on a computer?

A mouse can be used to control the position of the cursor on the screen, but it cannot be used to enter text into the computer. 9/9/2019 Designed by: INGAMULE SIRAJI 6 fTHE MOUSE 9/9/2019 Designed by:INGAMULE SIRAJI 7 fThe Joystick Joystick is also a pointing device, which is used to move the cursor position on a monitor screen. ...

When is a scanner used?

It is used when some information is available on paper and it is to be transferred to the hard disk of the computer for further manipulation.  Scanner captures images from the source which are then converted into a digital form that can be stored on the disk.

CS101: Introduction to Computer Science I

Review these notes. For maximum benefit, go through these notes interactively, thinking about and answering the questions at the bottom of each page. These notes are an experiment in applying the "programmed learning" method to web-based computer aided instruction. The subject is Java Programming for beginning programmers.

Input and Output Devices

Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system. An input device is used to bring data into the system. Some input devices are:

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      970μsview::2dd102cf0462e89a4d4d8bc77355d767652bf9aa:15receivinghelpdeskask
      Metadata
      Bindings
      • 0. 21880
      Backtrace
      • 21. view::2dd102cf0462e89a4d4d8bc77355d767652bf9aa:15
      • 23. /vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:108
      • 24. /vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 25. /vendor/livewire/livewire/src/ComponentConcerns/RendersLivewireComponents.php:69
      • 26. /vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:61
    App\Models\FakeUser
    1
    Outl1ne\MenuBuilder\Models\MenuItem
    1
    Outl1ne\MenuBuilder\Models\Menu
    1
    App\Models\JsonPostContent
    1
    App\Models\Post
    11
        _token
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        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /computer-input-and-output-devices-notes
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
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        request_server
        0 of 0
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        request_cookies
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