The Global Open University 2012-1st Year M.C.A Global open University of IT Tools and Applications - Question Paper

by 5 bits. Which of the subsequent
system(s) will produce overflow if the
opera(on-3-3 is performed?
a. one's compliments only
b. two's compliments only
c. sign and magnitude and one's
compliment
d. one's compliments and two's
compliments
34) ASCII and EBCDIC differ in
a. their efficiency in storing data
b. the random and sequential access
method
c. the number of bytes used to store
character
d. their collecting sequences
35 ) Which of the subsequent codes uses
7 bits to represent a character?
a. ASCII
b. EBCDIC
c. BCD
d. GRAY
36) The Floa(ng-point numbers are
normally used to represent
a. very large or small numbers
b. only large positive numbers
c. only large negative numbers
d. negative numbers within computer
37 ) The hexadecimal number A 23 F
is represented in binary by 7
a. 1010 0010 0011 1110
b. 1010 0100 0011 1111
c. 1010 0010 0011 1111
d. 1111 0011 0010 1010
38) An Inverter is also called which gate
a. NOT
b. OR
c. AND
d. NAND
39) According to Boolean algebra A+A
+A+...A is
a. A
b. NA
c. A/n
d. A
40 ) Which of the subsequent does not
represent Boolean algebra operation?
a. NOT
b. NOR
c. AND
d. OR
41 ) Which gate corresponds to the
action of parallel switches?
a. AND gate
b. NAND gate
c. OR gate
d. NOR gate
42 ) Which logic func(on has the
output low only when all inputs are
high?
a. AND
b. NAND
c. OR
d. NOR
43 ) A toggle operation cannot be
performed using a single
a. NOR gate
b. AND gate
c. NAND gate
d. X-OR gate
44) A positive AND gate is also a
negative
a. NAND gate
b. NOR gate
c. AND gate
d. OR gate
45 ) The term product of sum in
Boolean algebra means
a. AND function of several functions
b. OR function of several AND functions
c. OR function of several OR functions
d. AND function of several AND functions
46 ) In which of the subsequent gates,
the output is one if and only if atleast
one input is 0 ?
a. NOT
b. AND
c. OR
d. NAND
47 ) In which of the subsequent gates,

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