16. The OCR is used for the preparation of :
(a) electricity bills
(b) insurance premium
(c) telephone bills
(d) All of the above
17. Which of these is a pointing and drop device ?
(a) Mouse
(b) Scanner
(c) Printer
(d) CD-ROM
18. A joystick is primarily used to/for :
(a) control sound on the screen
(b) computer gaming
(c) enter text
(d) draw pictures
19. A bar code reader is an example of :
(a) processing device
(b) storage device
(c) input device
(d) output device
20. The pattern of printed lines on most products are called :
(a) prices
(b) OCR
(c) scanners
(d) bar codes
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