Computer Science · Oct / Nov 2024 · Paper 11 · Question 3
0478
As printed in the paper
The question as text
A user enters text into a computer system, using a keyboard. An American standard code for information interchange (ASCII) character set is used to convert the text to binary.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
3(a)[1]
Unicode
3(b)(i)[2]
(0)1000001(0)11011013(b)(ii)[2]
416D3(c)(i)[1]
121
3(c)(ii)[1]
79
3(c)(iii)[1]
00011110
3(d)[3]
One mark for correct working, for example: carries
One mark for each correct nibble.
1 1 1 1
0 1 0 1 0 1 0 0
0 1 1 1 0 1 0 0
1 1 0 0 1 0 0 0
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