21. The range of frequencies available for data transmission is known as

A. Baud
B. Bandwidth
C. Byte
D. Bits
E. None of the above

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22. Full adder has

A. 4 inputs
B. 8 inputs
C. 10 inputs
D. 3 inputs
E. None of the above

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23. Which major development led to the production of microcomputers?

A. Magnetic disks
B. Floppy disks
C. Logic gates
D. Integrated circuits
E. None of the above

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24. The first computer made available for commercial use was

A. Mark-I
B. ENIAC
C. EDSAC
D. UNIVAC
E. None of the above

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25. In which mode, each user has a local input/output device.

A. Interactive
B. Time sharing mode
C. Batch processing mode
D. All of the above
E. None of the above

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