Digital Computer Electronics – Section 2

16. The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.

A. volatile
B. static
C. semiconductor
D. bipolar
E. None of the above

Correct Answer:  B. static

17. A byte is consist of _____ bits

A. two
B. four
C. eight
D. ten
E. None of the above

Correct Answer:  C. eight

18. What is the 1’s complement of 0000 1111 0010 1101 number?

A. 1111 0000 0010 1101
B. 1111 0000 1101 0010
C. 1111 1100 1010 1100
D. 1001 0010 1010 1100
E. None of the above

Correct Answer:  B. 1111 0000 1101 0010

19. Addition of 11012 and 10102 is

A. 101012
B. 110002
C. 110112
D. 101112
E. None of the above

Correct Answer:  D. 101112

20. A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output

A. low
B. high
C. some low and some high
D. 0’s
E. None of the above

Correct Answer:  B. high

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