Which of the following are special purpose keys?
a) ESC
b) delete
c) print screen
d) all of these
How many types of keyboards?
a) five
b) six
c) seven
d) eight
QWERTY keyboard, Enhanced keyboard, wireless keyboard, portable keyboard, ergonomics keyboard, gaming keyboard, virtual keyboard
How many types of mouse in computer?
a) three
b) four
c) five
d) six
mechanical mouse, optical mouse, wireless mouse, air mouse, touch mouse
How many types of touch screens?
a) one
b) two
c) three
d) four
resistive touch screen, capacitive touch screen
Which of the following is an output device?
a) joystick
b) trackball
c) monitor
d) digital camera
Which of the following is not an input device?
a) joystick
b) digital camera
c) mouse
d) printer
