Computer Science · Oct / Nov 2023 · Paper 12 · Question 2
0478
As printed in the paper
The question as text
A register stores the binary number: 1 1 1 0 0 0 1 1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
2(a)[1]
2272(b)[2]
One mark for each correct character in the correct order:
E32(c)[1]
1
0
0
0
1
1
0
0
2(d)[2]
One mark for suitable working method e.g. flip and add 1
One mark for correct answer
100111012(e)[4]
One mark for each correct nibble (max 2)
One mark for correct working e.g. correct carry
One mark for showing overflow bit
1
1 1 1 0 0 0 1 1
+ 0 1 0 0 1 1 0 0
1 0 0 1 0 1 1 1 1
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.