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Computer

Facts

Abbreviations

Tricks

Shortcut Keys

Tutorials

Websites

Software

Hardware

1. Decimal Number represented by the 11111110 binary number is

A.

B.

C.

D.

2. The number of 1's present in the binary representation of

10 * 256 + 5 * 16 + 5 is

A.

B.

C.

D.

3. Which of the following is the fastest logic

A.

B.

C.

D.

4. Find Two's complement of the number 10010010

A.

B.

C.

D.

5. (2FAOC)_{16} is equivalent to

A. _{10}

B. _{2}

C.

D.

6. A combinational logic circuit which sends data coming from a single source to two or more separate destinations is

A.

B.

C.

D.

7. 12-bit 2's complement of -73.75 is

A.

B.

C.

D.

8. The Gray code equivalent of (1011)_{2} is

A.

B.

C.

D.

9. The decimal equivalent of Hex number 1A53 is

A.

B.

C.

D.

10. 8-bit 1's complement form of -77.25 is

A.

B.

C.

D.

11. Which one of the following expressions does NOT represent exclusive NOR of x and y?

A.

B.

C.

D.

12. Binary number represented by the 37 decimal number is

A.

B.

C.

D.

13. Logic X-OR operation of 4ACOH & B53FH results

A.

B.

C.

D.

14. A device which converts BCD to Seven Segment is called

A.

B.

C.

D.

15. The decimal number equivalent of (4057.06)_{8} is

A.

B.

C.

D.

16. The octal equivalent of hexadecimal (A.B)_{16} is

A.

B.

C.

D.

17. Logic gates with a set of input and outputs is arrangement of

A.

B.

C.

D.

18. The NAND gate output will be low if the two inputs are

A.

B.

C.

D.

19. In computers, subtraction is generally carried out by

A.

B.

C.

D.

20. In a positive logic system, logic state 1 corresponds to

A.

B.

C.

D.