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Digital Electronics
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Number Systems and Codes
Comments
Question
Convert decimal 213 to binary.
Options
A. 11001101
B. 11010101
C. 01111001
D. 11100011
Correct Answer
11010101
Number Systems and Codes problems
Search Results
1. If a typical PC uses a 20-bit address code, how much memory can the CPU address?
Options
A. 20 MB
B. 10 MB
C. 1 MB
D. 580 MB
Show Answer
Scratch Pad
Discuss
Correct Answer: 1 MB
2. The binary number for F3A
16
is ________.
Options
A. 111100111010
B. 111100111110
C. 000000111010
D. 000011000100
Show Answer
Scratch Pad
Discuss
Correct Answer: 111100111010
3. Convert the following decimal number to hexadecimal.
74
Options
A. A4
16
B. B4
16
C. 4A
16
D. 4B
16
Show Answer
Scratch Pad
Discuss
Correct Answer: 4A
16
4. Digital electronics is based on the ________ numbering system.
Options
A. decimal
B. octal
C. binary
D. hexadecimal
Show Answer
Scratch Pad
Discuss
Correct Answer: binary
5. Convert the following decimal number to BCD.
469
Options
A. 100101101000
B. 010001101001
C. 100001101001
D. 100101100100
Show Answer
Scratch Pad
Discuss
Correct Answer: 010001101001
6. A decimal 11 in BCD is ________.
Options
A. 00001011
B. 00001100
C. 00010001
D. 00010010
Show Answer
Scratch Pad
Discuss
Correct Answer: 00010001
7. Convert binary 111111110010 to hexadecimal.
Options
A. EE2
16
B. FF2
16
C. 2FE
16
D. FD2
16
Show Answer
Scratch Pad
Discuss
Correct Answer: FF2
16
8. Express the decimal number ?37 as an 8-bit number in sign-magnitude.
Options
A. 10100101
B. 00100101
C. 11011000
D. 11010001
Show Answer
Scratch Pad
Discuss
Correct Answer: 10100101
9. Convert the following decimal number to octal.
39
Options
A. 63
8
B. 36
8
C. 47
8
D. 74
8
Show Answer
Scratch Pad
Discuss
Correct Answer: 47
8
10. Convert the following decimal number to BCD.
127
Options
A. 011100100001
B. 111010001
C. 001010111
D. 000100100111
Show Answer
Scratch Pad
Discuss
Correct Answer: 000100100111
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