Number Systems and Codes problems
- 1. The addition 1 + 0 doesn't generate a carry bit; one does not exist.
Options- A. True
- B. False Discuss
Correct Answer: False
- 2. 64 hexadecimal equals 100 decimal.
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. Base is the same as radix.
Options- A. True
- B. False Discuss
Correct Answer: True
Explanation:
In mathematical numeral systems, the base or radix for the simplest case is the number of unique digits, including zero, that a positional numeral system uses to represent numbers. For example, for the decimal system (the most common system in use today) the radix is ten, because it uses the ten digits from 0 through 9. In any numeral system, the base is written as "10". In a base ten numeral system, "10" represents the number ten; in a base two system, "10" represents the number two.
- 4. The binary coded decimal (BCD) code is a system that represents each of the 10 decimal digits as a(n) ____________.
Options- A. 4-bit binary code
- B. 8-bit binary code
- C. 16-bit binary code
- D. ASCII code Discuss
Correct Answer: 4-bit binary code
- 5. A binary code that progresses such that only one bit changes between two successive codes is _________.
Options- A. 9's complement code
- B. excess-3 code
- C. 8421 code
- D. gray code Discuss
Correct Answer: gray code
- 6. A binary number's value changes most drastically when the ____ is changed.
Options- A. LSB
- B. duty cycle
- C. MSB
- D. frequency Discuss
Correct Answer: MSB
- 7. Digital electronics is based on the _________ numbering system.
Options- A. decimal
- B. hexadecimal
- C. binary
- D. octal Discuss
Correct Answer: binary
- 8. The __________ code is a nonweighted binary code.
Options- A. excess-3
- B. gray
- C. multibit
- D. minival Discuss
Correct Answer: gray
- 9. A BCD code that represents each digit of a decimal number by a binary number derived by adding 3 to its 4-bit true binary value is _________.
Options- A. 9's complement code
- B. excess-3 code
- C. 8421 code
- D. gray code Discuss
Correct Answer: excess-3 code
More in Electronics:
Programming
Copyright ©CuriousTab. All rights reserved.