Question

1. Tick the correct option :
a) qwerty is a type of ________ .
(a) keyboard (b) mouse (c) moniter (d ) printer

b) which of the following type of mouse uses laser beam to detect movement and has no ball ?
(a) mechanical mouse (b) optical mouse (c) opto-mechanical mouse
(d) both (2) &(3)

c) a_________converts sound waves into analog electrical signals .
(a) speaker (b) microphone (c) light pen (d) none of these

d) which of the following is not a type of monitor ?
(a) crt (b) lcd (c) svga (d) gui

(e) which of the following is not an optical storage device ?
(a) memory stick (b) blue-disk (c) cd (d) dvd ​

Answer 1

Answer:

qwerty is type of keyboard

Answer 2

Answer:

a . Keyboard

b. optical mouse

c. Microphone

d. Gui

e. Blue disk