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Computer Fundamentals → Number System 8

Convert hexadecimal C0A80101 to dotted decimal IP?
192.168.1.1
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Binary number 101.101 in decimal is?
5.625
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Hexadecimal 0.8 in decimal is?
0.5
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BOM (Byte Order Mark) in Unicode files is used to?
Indicate endianness/encoding of file
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Hexadecimal 3E8 in decimal is?
1000
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Hexadecimal FFFF in decimal is?
65535
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Hexadecimal arithmetic: A + B = ?
15 hex
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Two hexadecimal digits can represent how many bits?
8
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Computer Fundamentals → Introduction to Computer 31

Binary 11000000.10101000.00000001.00000001 is IP address?
192.168.1.1
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Booth's algorithm is used for?
Efficient signed binary multiplication
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Restoring division algorithm in binary?
Partially restores remainder if subtraction result is negative
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Octal 0.4 in decimal is?
0.5
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BCD addition of 7+6: result with correction?
0001 0011
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Excess-3 representation of decimal 5 is?
1000
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Gray code for decimal 5 is?
0111
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Binary to Gray code conversion: each Gray bit = ?
XOR of binary bit with previous binary bit
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Hamming code is used for?
Single-bit error detection AND correction
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Minimum Hamming distance for single error correction is?
3
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Number of parity bits needed for 8 data bits in Hamming code?
4
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CRC error detection can detect?
Burst errors up to CRC length
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ASCII 'Z' (uppercase) has decimal code?
90
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The difference between ASCII codes of uppercase and lowercase same letter is?
32
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Unicode code point for Euro sign (€) is?
U+20AC
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UTF-16 encodes most common characters using?
2 bytes (one code unit)
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Surrogate pairs in UTF-16 are used for?
Characters outside BMP requiring 4 bytes (two 16-bit code units)
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Decimal 1000 in binary is?
1111101000
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Binary 1 0000 0000 in decimal is?
256
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The number of bits needed to represent 1000 different values is?
10
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Binary multiplication is performed by?
Shift and add operations
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In 8-bit 2's complement, the most negative number is?
-128
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Overflow in signed binary arithmetic occurs when?
Result exceeds range representable in given bit width
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Decimal 0.1 + 0.2 in floating point ≠ 0.3 because?
Neither 0.1 nor 0.2 can be exactly represented in binary floating point
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Machine epsilon is?
Smallest float such that 1.0 + ε ≠ 1.0
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Q format (fixed-point) Q8.8 means?
8 integer bits + 8 fractional bits = 16-bit fixed-point number
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Binary division 1010 ÷ 0010 = ?
0101
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Parallel prefix adder (e.g., Kogge-Stone) reduces carry propagation to?
O(log n)
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What is binary 1111 + 0001?
1 0000
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Decimal 255 in octal is?
377
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Octal 777 in decimal is?
511
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Computer Fundamentals → Memory Units 1

The carry from binary addition propagates from?
LSB to MSB
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