11. A uses a light- touchy indicator to choose objects on a presentation screen.
A. scanner
B. microphone
C. light pen
D. speaker
C. light pen
12. Which of the following devices has a cylindrical drum called a ‘photo receptor’?
A. Flatbed plotter
B. Keyboard
C. Laser printer
D. Joystick
C. Laser printer
13. __________ is a light-sensitive device that converts drawing, printed text, or other images into digital form and stores in computer memory.
A. Barcode scanner
B. Optical Mark Recognition
C. Scanner
D. Plotter
C. Scanner
14. Which of the following input device converts bitmap images of characters to equivalent ASCII codes?
A. OCR
B. OMR
C. Scanner
D. Touch Screen
A. OCR
15. Identify the true/false from the following statements.
a) The Control Unit (CU) of the computer does not do any actual processing of the data.
b) CPU is built into the integrated circuit (IC) chip and is also known as microprocessor.
c) Flatbed scanner works as both input and output device.
A. a-true, b-true, c- true
B. a-false, b – true, c – true ;
C. a-true, b – false, c – true
D. a-true, b- true, c – false
D. a-true, b- true, c – false
16. Missing slot covers on a computer can cause?
A. EMI
B. Over heat
C. power surges
D. None of the above
B. Over heat
17. Which of the following are input devices?
A. Monitor
B. Printer
C. Scanner
D. Plotter
C. Scanner
18. What is another name for a dot matrix printer?
A. Impact printer
B. Page printer
C. Spray printer
D. Line printer
A. Impact printer
19. A computer device mainly used to provide hard copy is_________
A. Scanner
B. CRT
C. Printer
D. Card reader
C. Printer
20. ______________ contains edge connectors that are used to enabling communication between the motherboard and different card.
A. Port card
B. Bus card
C. Bay cards
D. Expansion cards
D. Expansion cards