Join Us ::

Menu Home Classes GK Engineering Past Papers Current Affairs Technical GAT Subject Programming Medical Papers

Computer Science :: All Aptitude Test ::

Home » GAT Subject » Computer Science » Aptitude Test - 36
1.What logic function is obtained by adding an inverter to the inputs of an AND gate?
A. OR
B. NAND
C. XOR
D. OR
2.A bus is a group of _____ carrying digital signals.
A. wires
B. gates
C. transistors
D. wires
3.The simplified form of the Boolean expression (X + Y + XY)(X + Z) is
A. X + Y + Z
B. XY + YZ
C. X + YZ
D. X + Y + Z
4.Addition of 102 and 112 is
A. 1002
B. 1012
C. 1112
D. 1002
5.How many bits are required to encode all twenty six letters ten symbols, and ten numerals?
A. 5
B. 6
C. 2
D. 5
6.An inverter is also called a _____ gate.
A. NOT
B. OR
C. AND
D. NOT
7.The binary number 1100 0101 has _____ bytes
A. 1
B. 2
C. 4
D. 1
8.With a NAND latch a low R and a low S produce a _____ condition.
A. race
B. set
C. reset
D. race
9.Which of the following logic families has the highest noise immunity?
A. RTL
B. DTL
C. TTL
D. RTL
10.The ALU carries out arithmetic and logic operations. It processes _____ numbers rather than decimal numbers.
A. decimal
B. hexadecimal
C. binary
D. decimal
11.Which of the following flip-flops is free from race around problem?
A. T flip-flop
B. SR flip-flop
C. master slave JK flip-flop
D. T flip-flop
12.If a microcomputer has a 64K memory, what are the hexadecimal notations for the first and last memory locations?
A. 0000, EEEE
B. 0, 64
C. 0000, FFFF
D. 0000, EEEE
13.A microprocessor has memory locations from 0000 to 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?
A. 4,095, 4K
B. 16,384, 16K
C. 32,740, 32K
D. 4,095, 4K
14.The m-bit parallel adder consists of:
A. (m+1) full adders
B. m/2 full adders
C. m-1 full adders
D. (m+1) full adders
15.An OR gate has 6 inputs. How many input words are in its truth table?
A. 64
B. 32
C. 16
D. 64
16.Which TTL sub-family has maximum speed?
A. standard TTL
B. schottky-clamped TTL
C. high speed TTL
D. standard TTL
17.Conversion of binary number 1100012 to its decimal number is
A. 2710
B. 4910
C. 3910
D. 2710
18.The OR gate has two or more input signals. If any input is _____ the output is high.
A. low
B. high
C. 0
D. low
19.How many memory locations can 14 address bits access?
A. 16,384
B. 8,192
C. 4096
D. 16,384
20.The ASCII code is a 7-bit code for
A. letters
B. numbers
C. other symbols
D. letters
21.The EXCLUSIVE - NOR gate is equivalent to an _____ gate followed by an invertor.
A. OR
B. AND
C. NAND
D. OR
22.In boolean algebra, the times sign stands for the _____ operation
A. AND
B. OR
C. NAND
D. AND
23.What logic function is obtained by adding an inverter to the output of an AND gate?
A. OR
B. NAND
C. XOR
D. OR
24.Conversion of an octal number 74328 to a binary number is
A. 11110001101112
B. 1111000110102
C. 1100110101112
D. 11110001101112
25.Conversion of an octal number 1438 to hexadecimal number is
A. 6316
B. 6016
C. 5016
D. 6316
26.The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.
A. volatile
B. static
C. semiconductor
D. volatile
27.A byte is consist of _____ bits
A. two
B. four
C. eight
D. two
28.Addition of 11012 and 10102 is
A. 101012
B. 110002
C. 110112
D. 101012
29.What logic function is produced by adding an inverter to the output of an AND gate?
A. NAND
B. NOR
C. XOR
D. NAND
30.Division of 1000112 by 1012 is
A. 1002
B. 1112
C. 1012
D. 1002
Related Subjects

Date to Date Current Affairs 2022

PakMCQs.net

Quick Links

GAT Subject



   Computer Science    English Mcqs    Agriculture    

Engineering



   Computer Science    Civil Engineering    

Technical



   Networking    Electronics    Database    

Past Papers



   Model Papers    FPSC Papers    
Our Team | Career | Contact | JoinUs | Privacy Policy | DMC

© 2020-2025 by Pak-MCQs.net All Rights Reserved.

Email: [email protected]