Classical

Digital Logic - Number representation and computer arithmetic

21:   A circuit produces 1's complement of the input word, one application is binary subtraction. It is called
A. Logic gate
B. Register
C. Multiplexer
D. BCD convertor
 
 

Option: B

Explanation :

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22:   The most commonly used character codes for transmission is
A. EBCDIC
B. ASCII
C. BCD
D. None of these
 
 

Option: D

Explanation :


23:   How many different number a 6-bit binary word can represent?
A. 63
B. 64
C. 124
D. 128
 
 

Option: B

Explanation :


24:   (r-1)'s complement of the (r-1)'s complement of an integer number is
A. original number
B. (r-2)'s complement of the number
C. r's compliment
D. BCD code of number
 
 

Option: A

Explanation :

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25:   The sign magnitude representative of decimal number -637 is
A. 0687
B. 9687
C. 1687
D. 1620
 
 

Option: B

Explanation :




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