Digital Computer Electronics – Section 1

6. The inverter OR gate and AND gate are called decision-making elements because they can recognize some input _____ while disregarding others. A gate recognizes a word when its output is _____

A. words, high
B. bytes, low
C. bytes, high
D. character, low
E. None of the above

Correct Answer:  A. words, high

7. A positive AND gate is also a negative

A. NAND gate
B. NOR gate
C. AND gate
D. OR gate
E. None of the above

Correct Answer:  D. OR gate

8. In which code the successive code characters differ in only one bit position?

A. gray code
B. excess 3 code
C. 8421 code
D. algebraic code
E. None of the above

Correct Answer:  A. gray code

9. Conversion of binary number 1011012 to hexadecimal is

A. 3716
B. 2D16
C. 2E16
D. 2716
E. None of the above

Correct Answer:  B. 2D16

10. ASCII and EBCDIC differ in

A. their efficiency in storing data
B. the random and sequential access method
C. the number of bytes used to store characters
D. their collecting sequences
E. None of the above

Correct Answer:  D. their collecting sequences

Leave A Comment?

16 − two =