INPUT DEVICES/ LECTURE-5

INPUT DEVICES
(for detail)

  KEYBOARD:

Is a input device that takes input from user. In keyboard 

there are no. of key that are.

1.       Numeric:  0 to 9

2.       Alphabetic: A to Z, a to z

3.       Control keys: ↑,→,↓,←, Shift, Ctrl, Alt

4.       Function Keys: F1 to F12

5.       Special Keys: Insert, Del, PrntScr ,etc.

           

           Working: it uses KEY MATRIX to take input & process these input & pass these input                           to the processor.