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AS CS U1.04 Quiz
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Convert the number 10110001₂ to denary.
1 point
Your answer
Using sign and magnitude, make the number 00101101₂ negative.
1 point
11010010
11010011
10101101
00110010
Clear selection
Convert the number 183₁₀ to hexadecimal
2 points
Your answer
Convert the number 11011100₂ to hexadecimal.
1 point
Your answer
What is a byte?
1 point
Arrangement of 4 bits
Arrangement of 8 bits
A single digit - either on or off (1 or 0)
Clear selection
Convert 72₁₀ into binary as a negative number using two's complement.
2 points
00001001
10111000
11110111
01001000
Clear selection
What is a word?
1 point
Length of the data processed
Number of bits in width processed by the CPU at any one time
Clear selection
How many combinations does an 8-bit code have?
1 point
16
128
256
512
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Convert 5.0125 into floating point form with an 8-bit signed mantissa and a 4-bit signed exponent. (Give in the format 0.1000000,0100)
3 points
Your answer
Using two's complement, make the number 01100110₂ negative.
1 point
10011010
10011011
10011001
Clear selection
Extra: Convert the denary number 273 to hexadecimal (no video solution).
Hint: Make a 12-bit binary cod. You may find using the base 2 conversion table more helpful.
2 points
Your answer
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