Computer Science - Computer Fundamentals

41. 

The terminal device often used in checking charge cards that offers both a limited keyboard input and visual output is the:

A. Intelligent terminal
B. POS terminal
C. Video display terminal
D. Audio response unit
E. None of the above

Answer: Option C

Explanation:

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42. 

The computer translates the condition of each switch to a number. What number is represented by the OFF state?

A. -7
B. -3.75
C. 1
D. 0
E. -22

Answer: Option D

Explanation:

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43. 

Who built the world's first electronic calculator using telephone relays, light bulbs and batteries?

A. Claude Shannon
B. Konard Zuse
C. George Stibits
D. Howard H. Aliken
E. None of the above

Answer: Option C

Explanation:

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44. 

Hard disks and diskettes are:

A. Direct access storage devices
B. Sequential access storage devices
C. Rarely used with microcomputers
D. Both (a) and (c)
E. None of the above

Answer: Option A

Explanation:

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45. 

In digital data transmission

A. Baud rate in equal to bit rate
B. Baud rate is always smaller than the bit rate
C. Baud rate is always higher than the bit rate
D. All of the above
E. None of the above

Answer: Option E

Explanation:

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