Q.21 The most commonly used character codes for transmission is…..
(A) EBCDIC
(B) ASCII
(C) Both (a) and (b)
(D) none of these
Q.22 The binary number 10011101 is equal to which hexadecimal number?
(A) 9E
(B) 9F
(C) 9D
(D) FF
Q.23 The binary coded decimal code 01100111 is equal to which decimal digit code……
(A) 103
(B) 76
(C) 67
(D) -67
Q.24 The decimal number 80 can be represented in BCD code as …….
(A) 1000 0001
(B) 0101 0000
(C) 0010 0000
(D) 1000000
Q.25 The two’s complement in binary system is useful for expressing…..
(A) positive numbers
(B) negative numbers
(C) both positive and negative numbers
(D) none of these
Q.26 The result of truncating the decimal number – 22.56 is….
(A) -22
(B) – 23
(C) 0
(D) -22.56
Q.27 ASCII code is an
(A) alphabet code
(B) numeric code
(C) alphanumeric code
(D) cyclic code
Q.28 Floating-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
Q.29 The Gray code for decimal 7 is ……
(A) 0111
(B) 1011
(C) 0100
(D) 0101
Q.30 The range for 13-bits complement numbers, expressed in decimal, is from…..
(A) – 127 to + 128
(B) – 127 to +127
(C) – 128 to + 128
(D) – 128 to + 127
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