Question

explain any four input devices in detail.​

Answer 1

Answer:

1)Keyboard:-Keyboard is a well known input device which contains alphabets,numeric/digits,special keys,function keys etc.Keyboard can be of serial or parallel.Keyboard is used to convert keys into digital form of computer.

2)Mouse:-Mouse is an input device which is also called a pointing device.It is used to move the cursor on the screen.Mouse works in GUI(Graphical User Interface) mode.Mouse are of different-2 types in which some are physical mouse,optical mouse,cordless mouse.

3)Joystick:-It is also called as game controller device.Joystick is a remote control device which is used in gaming purpose.We will also play game with keyboard but joystick gives more simplicity and more speed than keyboard.

4)Scanner:-Scanner is a example of input device which are mainly used to check OMR sheets.It is also used to copy text,images in the form of soft copy.

Answer 2

Answer: the four Input Devices are: Keyboard, Computer Mouse,Joystick,Light Pen.

Explanation:

• Keyboard: The keyboard is the most common and very popular input devices which helps to input data on the computer.
• Mouse: It is the most popular pointing devices. It is a very famous cursor control device having a small palm size box with a round ball at its base,which sense the movement and sends coressponding to the CPU when the mouse button are pressed.
• Joystick is also a pointing devices,which is used to move the cursor position on a monitor screen.
• Light Pen: It is a pointing devices similar to a pen.It us used to select a displayed menu item or draw picture on the monitor screen.It consists of a photocell and optical system placed in a small tube.