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Digital Arithmetic Operations and Circuits problems
1. The contents of the A register after
is ________.
Options
A. 0000
B. 0001
C. 1001
D. 1010
Show Answer
Scratch Pad
Discuss
Correct Answer: 1010
2. Binary numbers can be added together in a basic parallel-adder circuit when ________.
Options
A. negative numbers are in 2's-complement form
B. negative numbers are in 1's-complement form
C. all carry pins are grounded
D. all negative numbers are noted
Show Answer
Scratch Pad
Discuss
Correct Answer: negative numbers are in 2's-complement form
3. When decimal numbers with several digits are to be added together using BCD adders ________.
Options
A. a separated BCD adder is required for each digit position
B. the BCD adders must have the carry-outs grounded
C. the BCD's must be grouped in twos
D. full adders are also used
Show Answer
Scratch Pad
Discuss
Correct Answer: a separated BCD adder is required for each digit position
4. The two's complement of 00001111 is ________.
Options
A. 11111111
B. 11110000
C. 11110001
D. 11110111
Show Answer
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Discuss
Correct Answer: 11110001
5. A four-bit adder can perform ________.
Options
A. addition
B. subtraction
C. logical AND
D. All of the above
Show Answer
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Discuss
Correct Answer: addition
6. The binary subtraction 1 ? 1 = ________.
Options
A. difference = 0
borrow = 0
B. difference = 1
borrow = 0
C. difference = 1
borrow = 1
D. difference = 0
borrow = 1
Show Answer
Scratch Pad
Discuss
Correct Answer: difference = 0
borrow = 0
7. If [A] = 10 and [B] = 01, then [A]
[b] = ________.
Options
A. [00]
B. 00
C. 11
D. [11]
Show Answer
Scratch Pad
Discuss
Correct Answer: 11
8. The binary addition of 1 + 1 = ________.
Options
A. sum = 1
carry = 1
B. sum = 0
carry = 0
C. sum = 1
carry = 0
D. sum = 0
carry = 1
Show Answer
Scratch Pad
Discuss
Correct Answer: sum = 0
carry = 1
9. FC48 ? AB91 = ________.
Options
A. 5B77
B. 5267
C. 50B7
D. 5077
Show Answer
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Discuss
Correct Answer: 50B7
10. When subtracting 6 from 9 using 2's-complement methods, the ________ is 2's complemented before the addition.
Options
A. six
B. multiplier
C. nine
D. two
Show Answer
Scratch Pad
Discuss
Correct Answer: six
First
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Last
More in Digital Electronics:
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Code Converters and Multiplexers
Combinational Logic Analysis
Combinational Logic Circuits
Computers
Counters
Describing Logic Circuits
Digital Arithmetic Operations and Circuits
Digital Concepts
Digital Design
Digital Signal Processing
Digital System Projects Using HDL
Ex-OR and Ex-NOR Gates
Flip-Flops
Integrated-Circuit Logic Families
Integrated Circuit Technologies
Interfacing to the Analog World
Logic Families and Their Characteristics
Logic Gates
Memory and Storage
Microprocessor Fundamentals
MSI Logic Circuits
Multivibrators and 555 Timer
Number Systems and Codes
Programmable Logic Device
Shift Registers
Signals and Switches
The 8051 Microcontroller
is ________.![Digital Electronics Digital Arithmetic Operations and Circuits: If [A] = 10 and [B] = 01, then [A]](../../../imagesresources/questions-resources/bbuyyVMuvrSTJsRc.gif)
[b] = ________.