Digital Arithmetic Operations and Circuits problems
- 1. In AHDL macrofunctions, the first thing that should go into any source file is ________ your code.
Options- A. a field of comments that documents
- B. a library of
- C. a function name of
- D. the universal global definition of Discuss
Correct Answer: a field of comments that documents
- 2. The binary adder circuit is designed to add ________ binary number(s) at a time.
Options- A. 1
- B. 3
- C. 2
- D. 5 Discuss
Correct Answer: 2
- 3. To make an eight-bit adder from two four-bit adders you must connect ________.
Options- A. the high-order carry-in to ground
- B. the low-order carry-out to the high-order carry-in
- C. the high-order carry-out to ground
- D. the low-order sum to the high-order data input Discuss
Correct Answer: the low-order carry-out to the high-order carry-in
- 4. Solve this BCD problem: 0101 + 0110 = ________.
Options- A. 00010111BCD
- B. 00001001BCD
- C. 00010001BCD
- D. 00010011BCD Discuss
Correct Answer: 00010001BCD
- 5. When performing binary addition using the 2's-complement method, an ________ can occur if ________ are of the same ________; the error is indicated by a(n) ________.
Options- A. error, both numbers, magnitude, negative sign
- B. overflow, both numbers, sign, incorrect sign bit
- C. overflow, signs, magnitude, incorrect sum
- D. error, the signs, polarity, incorrect polarity Discuss
Correct Answer: overflow, both numbers, sign, incorrect sign bit
- 6. Inside a computer all arithmetic operations take place in the ________.
Options- A. accumulator register
- B. ALU
- C. CPU
- D. B register Discuss
Correct Answer: ALU
- 7. The concurrent section of the hardware description is where the ________ are interconnected.
Options- A. functions
- B. components
- C. circuits
- D. macrofunctions Discuss
Correct Answer: components
- 8. The 74HC382 ALU can perform ________ operations.
Options- A. 2
- B. 4
- C. 8
- D. 16 Discuss
Correct Answer: 8
- 9. 34FC + AD31 = ________.
Options- A. E22D
- B. E31D
- C. E21D
- D. E42D Discuss
Correct Answer: E22D
- 10. A 74HC283 can be used to implement a(n) ________ adder.
Options- A. 4-bit BCD
- B. 8-bit BCD
- C. 4-bit full
- D. 8-bit full Discuss
Correct Answer: 4-bit full
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