Computer input devices

---

1.
 
COMPUTER INPUT DEVICES 
1.
 Look at the picture. Guess the functions of the input devices, give the definition of input 
devices in one sentence and present 
Definition: 
Input devices_________________________________________________________________ 
____________________________________________________________________________ 
The keyboard 
A standard PC keyboard has various groups of keys. 
▪
Alphanumeric keys – 
these represent letters and numbers, arranged as on a 
typewriter.
 
▪
A
 numeric keypad – 
appears to the right of the main keyboard and contains 
numeric and editing keys; the Num Lock key is used to switch from numbers to 
editing functions.
 
▪
Functionkeys
appear at the top of the keyboard and can be programmed to do 
special jobs.