Number Systems and Codes problems
- 1. Express the decimal number ?37 as an 8-bit number in sign-magnitude.
Options- A. 10100101
- B. 00100101
- C. 11011000
- D. 11010001 Discuss
Correct Answer: 10100101
- 2. Convert the following decimal number to octal.
39
Options- A. 638
- B. 368
- C. 478
- D. 748 Discuss
Correct Answer: 478
- 3. Convert the following decimal number to BCD.
127
Options- A. 011100100001
- B. 111010001
- C. 001010111
- D. 000100100111 Discuss
Correct Answer: 000100100111
- 4. Convert 5278 to binary.
Options- A. 011100111
- B. 101010111
- C. 343
- D. 111010101 Discuss
Correct Answer: 101010111
- 5. Convert the following binary number to decimal.
010112
Options- A. 11
- B. 35
- C. 15
- D. 10 Discuss
Correct Answer: 11
- 6. Convert the following binary number to octal.
0101111002
Options- A. 1728
- B. 2728
- C. 1748
- D. 2748 Discuss
Correct Answer: 2748
- 7. One hex digit is sometimes referred to as a(n):
Options- A. byte
- B. nibble
- C. grouping
- D. instruction Discuss
Correct Answer: nibble
- 8. Convert hexadecimal C0B to binary.
Options- A. 110000001011
- B. 110000001001
- C. 110000001100
- D. 110100001011 Discuss
Correct Answer: 110000001011
- 9. The voltages in digital electronics are continuously variable.
Options- A. True
- B. False Discuss
Correct Answer: False
- 10. An informational signal that makes use of binary digits is considered to be:
Options- A. solid state
- B. digital
- C. analog
- D. non-oscillating Discuss
Correct Answer: digital
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