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Computer Fundamentals → Number System 14

Binary 1101 0011 in hexadecimal is?
D3
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Hexadecimal FF + 1 = ?
100 hex
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Which of the following is NOT a valid hexadecimal digit?
G
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Decimal 16 in hexadecimal is?
10
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The base of decimal number system is?
10
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Hexadecimal C in decimal is?
12
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Which number system uses 8 as its base?
Octal
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Hexadecimal 10 in decimal is?
16
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What is decimal 15 in hexadecimal?
F
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Binary 0000 1111 in hexadecimal is?
0F
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Hexadecimal FF in octal is?
377
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The radix (base) of hexadecimal system is?
16
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Convert decimal 255 to hexadecimal?
FF
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Which number system is NOT positional?
Roman numerals
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Computer Fundamentals → Introduction to Computer 26

The range of 8-bit unsigned integer is?
0 to 255
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The range of 8-bit signed integer (2's complement) is?
-128 to 127
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How many characters does extended ASCII support?
256
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Binary subtraction 1010 - 0011 = ?
0111
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In IEEE 754 single precision, how many bits represent the exponent?
8
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The word 'bit' is a contraction of?
Binary digit
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Convert octal 77 to decimal?
63
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Binary 1000 in decimal is?
8
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Convert decimal 64 to binary?
0100 0000
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Convert binary 11000000 to decimal?
192
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Octal 10 in decimal is?
8
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Decimal 128 in binary is?
10000000
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Adding binary 0110 + 0111 = ?
1101
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Decimal 10 in octal is?
12
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What is the largest single digit in octal?
7
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Convert hex 2F to decimal?
47
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Binary 1001 × 2 in binary is?
10010
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Binary multiplication 101 × 11 = ?
1111
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Octal digit 7 in binary is?
111
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Hex A0 in decimal is?
160
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Binary 1111 1111 1111 1111 in hex is?
FFFF
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The 2's complement of 0 (8-bit) is?
00000000
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Convert hex 100 to decimal?
256
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Decimal 32 in binary is?
100000
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Binary 1010 in octal is?
12
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Which base requires the fewest digits to represent large numbers?
Hexadecimal
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