Digital Computer Electronics problems
- 1. Conversion of decimal number 1310 to it's octal number equivalent is
Options- A. 158
- B. 178
- C. 138
- D. 118
- E. None of the above Discuss
Correct Answer: 158
- 2. With an RS latch a high S and low R sets the output to _____ ; a low S and a high R _____ the output to low.
Options- A. No change, set
- B. Race, high
- C. high, reset
- D. set, reset
- E. None of the above Discuss
Correct Answer: high, reset
- 3. Conversion of decimal number 6110 to it's binary number equivalent is
Options- A. 1100112
- B. 110011102
- C. 1111012
- D. 111112
- E. None of the above Discuss
Correct Answer: 1111012
- 4. De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.
Options- A. AND
- B. XAND
- C. XOR
- D. OR
- E. None of the above Discuss
Correct Answer: OR
- 5. How many bits are required to encode all twenty six letters ten symbols, and ten numerals?
Options- A. 5
- B. 6
- C. 2
- D. 3
- E. None of the above Discuss
Correct Answer: 6
- 6. An inverter is also called a _____ gate.
Options- A. NOT
- B. OR
- C. AND
- D. NAND
- E. None of the above Discuss
Correct Answer: NOT
- 7. 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 Discuss
Correct Answer: has 128 characters, including 32 control characters
- 8. 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 Discuss
Correct Answer: complimentary
- 9. Conversion of binary number 10010012 to hexadecimal is
Options- A. 4016
- B. 3916
- C. 4916
- D. 4216
- E. None of the above Discuss
Correct Answer: 4916
- 10. 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 Discuss
Correct Answer: it is controlled by voltage rather than by current, so that it requires very little current at the control terminal
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