Question

Q. 1)name any 5 input and output devices and explain their purpose.
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Answer 1

Explanation:

5 Input DeviceName:-

1)Mouse

2)Keyboard

3)Optical Scanner

4)Microphone

5)Touch Screen

Input Device Purpose:-

1)Mouse:-A mouse is an electro mechanical, hand held device . It is used as a pointer. It can perform functions like selecting menu commands, moving icons, resizing windows, starting programs, and choosing options.

2)Keyboard:- A keyboard is the most common input device. Generally standard keyboard has 104 keys.

3)Optical Scanner:-These devices are used for automatic data collection. The devices of this category completely eliminate manual input of data.

4)Microphone:-Microphone is an input device, which takes voice as input. The voice communication is more error-prone than information through keyboard.

5) Touch screen:-Touch panel displays and pads are now being offered as alternatives to keyboard.