Q1: It is the distance between the holes in the mask behind the screen.
- a) refresh rate
- b) dot pitch
- c) resolution
- d) all
Q2: What is the function of F4 key?
- a) to repeat the last action
- b) to delete
- c) to cut
- d) all
Q3: It is the signal converter used in most of the output devices.
- a) encoder
- b) decoder
- c) modem
- c) RAM
Q4: Slide is the invention of :
- a) Pascal
- b) William Ought Red
- c) IBM
- d) Ada Augusta
Q5: Which of the following circuit is used as memory device in computer?
- a) flip flop
- b) rectifier
- c) both a & b
- d) none
