Computers manipulate binary patterns.
Convert the denary number 161 to hexadecimal.
Mark scheme
Award one mark for each correct digit in the correct position:
- A (1)
- 1 (1)
Answer: A1
Example answers and how they were marked
Full marks2/2
A1
Why: 161 ÷ 16 = 10 remainder 1, so the digits are A and 1: both digits are correct (2).
Some marks1/2
101
Why: One digit is correct (1), but a digit over 9 is written in denary instead of as a letter.
No marks0/2
1A
Why: The digits are the wrong way round, so neither is in the correct position.