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Digital Computer Electronics
Comments
Question
A diagram that illustrates the ore (Logic) of functions in a progran called a
Options
A. Flowchart
B. Sequence of steps
C. Direction of flow
D. All of the above
E. None of the above
Correct Answer
Flowchart
Digital Computer Electronics problems
Search Results
1. The Gray code for decimal 7 is
Options
A. 0111
B. 1011
C. 0100
D. 0101
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 0100
2. A p- channel enhancement type MOSFET performs much the same function as a PNP transistor, except that
Options
A. it operates much faster
B. it is considerably larger
C. it is controlled by voltage rather than by current, so that it requires very little current at the control terminal
D. it is controlled by current rather than by voltage like a bipolar transistor.
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: it is controlled by voltage rather than by current, so that it requires very little current at the control terminal
3. Conversion of binary number 1001001
2
to hexadecimal is
Options
A. 40
16
B. 39
16
C. 49
16
D. 42
16
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 49
16
4. Flip-flop outputs are always
Options
A. complimentary
B. the same
C. independent of each other
D. same as inputs
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: complimentary
5. The ASCII
Options
A. is a subset of 8-bit EBCDIC
B. is used only in Western Countries
C. is version II of the ASC Standard
D. has 128 characters, including 32 control characters
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: has 128 characters, including 32 control characters
6. Conversion of binary number 101101
2
to hexadecimal is
Options
A. 37
16
B. 2D
16
C. 2E
16
D. 27
16
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 2D
16
7. _____dominates the LSI field, and _____ is used extensively where lowest power consumption is necessary.
Options
A. NMOS, PMOS
B. PMOS, CMOS
C. NMOS, CMOS
D. MOSFET, PMOS
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: NMOS, CMOS
8. The output 0 and 1 levels for TTL logic family is approximately
Options
A. 0.1 and 5 V
B. 0.6 and 3.5 V
C. 0.9 and 1.75V
D. -1.75 and -0.9 V
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 0.6 and 3.5 V
9. Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH
Options
A. 63
B. 32
C. 16
D. 38
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 63
10. 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 _____
Options
A. words, high
B. bytes, low
C. bytes, high
D. character, low
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: words, high
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