Homework Zubaydo Iskandarova What are input and processing?



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What are input and processing
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What are input and processing?
What is meant by the field of access in computer technology

Input unit

An input unit consists of input devices such as keyboard, mouse, scanner, and joystick. Input devices are used to send data to the computer.

An input device accepts the instructions and data from the user and converts it into the form, which is understandable to the computer. The converted data is send to the CPU (Central Processing Unit) for further processing. The various input devices include:



  • Keyboard

  • Computer mouse 

  • Scanner

Keyboard

The name itself suggests that it is a board consists of arrangement of keys. It is the main input device for most of the computers.

Keyboard is an input device used mainly for entering symbols like letters and numbers into a computer. Input is entered into the computer by pressing buttons or keys. Generally, it is used for typing text and numbers on ms word, note pad, and other programs. Keyboards are also used for playing games.



Computer mouse

A computer mouse is an input device used for selecting items, opening, and closing items, copying and deleting the items on the screen by controlling the movement of a cursor or pointer on the computer screen. It is also used for creating new folders and browsing internet.
The mouse turns the movement of the hand (left, right, forward, and backward) into equivalent electronic signals that in turn are used to move the pointer.

Scanner

Scanner is an input device used mainly for capturing the printed documents and uploading it into computer as digital images. These digital images are easily viewed and edited on computer. A scanner can be connected to a computer via USB or SCSI.


Zubaydo Ikandarova

Direction of Informatics teaching

methodology Level 3 2nd group student



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