21. An input device which can read characters directly from an ordinary piece of paper is

A. OCR
B. OMR
C. MSI
D. POS
E. None of the above


Correct Answer: A. OCR

22. Which of the following is not a part of the CPU

A. storage unit
B. arithmetic and logic unit
C. program unit
D. control unit
E. None of the above


Correct Answer: C. program unit

23. Which of the following chips can be reprogrammed with special electric pulses?

A. EPROM
B. PROM
C. ROM
D. EEPROM
E. None of the above


Correct Answer: D. EEPROM

24. In this world of fast changing computer technology, one of the most important factor to be considered while purchasing a PC is, it should have a provision for

A. high level integration
B. self upgradability
C. intelligent sensors
D. faster data access
E. None of the above


Correct Answer: B. self upgradability

25. A collection of eight bits is called

A. Byte
B. Word
C. Record
D. File
E. None of the above


Correct Answer: A. Byte

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