Classical

Digital Logic - Number representation and computer arithmetic

1:   Even parity is being used for error checking computer data. If data word to be transmitted is 0101 0111, the value of the parity will be
A. 0
B. 1
C. 1 or 0
D. 00
 
 

Option: B

Explanation :

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chandan kuamr said: (3:41pm on Thursday 27th June 2013)
in the even parity ,the number of i is in even number since here the number of 1 is 5 which is odd so we add 1 as a parity bit to make total of 1 is in even numbersimilary in odd parity number of 1 is odd number

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2:   The ASCII
A. is a subset of 8-bit EBCDIC
B. is used only in Western Countries
C. Both (a) and (b)
D. has 128 character, including 32 control characters
 
 

Option: D

Explanation :

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3:   The sign magnitude representation of binary number + 1101.011 is
A. 01101.011
B. 11101.011
C. 00110.100
D. 10010.100
 
 

Option: A

Explanation :

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mahvish fatima said: (11:09am on Thursday 19th October 2017)
put 0 if the sign is ( ) and put 1 if the sign is (-) in the leftmost of the number

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4:  

 What is the equivalent of (10110011100011110000)2 n base 32?

A.

11 9 23 31

B.

22 14 7 16

C.

11 9 7 16

D.

11 14 23 16

 
 

Option: B

Explanation :

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sathya said: (3:31pm on Tuesday 23rd June 2015)
I need explanation for this ques

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5:  

A computer with a 32-bit word size uses 2's complement to represent numbers. The range of integers that can be represented by this computer is

A.

- 232 to 232

B.

-232 to 231

C.

-231 to 231-1

D.

— 232 to 231

 
 

Option: C

Explanation :

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Syllabus covered in this section is-

  • Logic functions, Minimization,
  • Design and synthesis of combinational and sequential circuits
  • Number representation and computer arithmetic (fixed and floating point)
  • Propositional (Boolean) Logic
  • Satisfiability and Tautology
  • Logic Families: TTL, ECL and C-MOS gates.
  • Boolean algebra and Minimization of Boolean functions
  • Flip-flops-types, race condition and comparison.
  • Design of combinational and sequential Circuits
  • Representation of Integers: Octal, Hex. Decimal and Binary.
  •  2's complement and 1 's complement arithmetic
  • Floating point representation.

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