Classical

Digital Logic - Number representation and computer arithmetic

51:   Two's complement can be obtained from one's complement by
A. adding 1
B. subtracting 1
C. putting 1 as the leading bit
D. None of these
 
 

Option: A

Explanation :

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52:   The ASCII code is
A. Numeric code
B. Same as BCD code
C. An alphanumeric code
D. Seldom used
 
 

Option: C

Explanation :


53:   Which code is a weighted code
A. Gray
B. Excess-3
C. BCD code
D. 5111
 
 

Option: D

Explanation :


54:   The octal equivalent of decimal 324.987 is
A. 504.771
B. 540.781
C. 215.234
D. 345.346
 
 

Option: A

Explanation :


55:  

What is the decimal equivalent of hexadecimal number 566?

A.

1382

B.

1582

C.

1192

D.

1882

 
 

Option: A

Explanation :

(566)16= 5* (16)2+ 6 *(16)1+6(16)0 = 1382




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