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Digital System Design: Number Systems and Codes
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Digital System Design: Number Systems and Codes
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25 Questions

1. (170)10 is equivalent to
2. 1's complement of 1011101 is ____________
3. Logic circuitry is used to detect _________
4. On subtracting +28 from +29 using 2's complement, we get ____________
5. How many bits would be required to encode decimal numbers 0 to 9999 in straight binary codes?
6. 2's complement of 11001011 is ____________
7. The octal equivalent of the decimal number (417)10 is _____
8. Divide the binary numbers: 111101 ÷ 1001 and find the remainder
9. Any signed negative binary number is recognized by its ________
10. The representation of octal number (532.2)8 in decimal is ________
11. The excess-3 code for 597 is given by __________
12. Add the two BCD numbers: 1001 + 0100 = ?
13. For arithmetic operations only _________
14. Convert (0.345)10 into an octal number:
15. The 1's complements requires _________
16. What is the addition of the binary numbers 11011011010 and 010100101?
17. 100101 × 0110 = ?
18. The octal number (651.124)8 is equivalent to ______
19. If the decimal number is a fraction then its binary equivalent is obtained by ________ the number continuously by 2.
20. Perform binary subtraction: 101111 '
21. Convert binary to octal: (110110001010)2 =?
22. On addition of +38 and -20 using 2's complement, we get ____________
23. Representation of hexadecimal number (6DE)H in decimal:
24. Perform multiplication of the binary numbers: 01001 × 01011 = ?
25. If the number of bits in the sum exceeds the number of bits in each added numbers, it results in _________

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