Computer Science 9618/32 — October/November 2023
Cambridge A-Level · Advanced Theory · worked solutions for every part, with the mark scheme
Topics Data Representation · System Software · Computational Thinking and Problem-solving · Hardware and Virtual Machines · Further Programming · Communication and Internet Technologies · +1 more
Real numbers are stored in a computer using floating point representation with:
- 10 bits for the mantissa
- 6 bits for the exponent
- two’s complement form for both the mantissa and the exponent.
Write the normalised floating-point representation of –96.75 in this system.
Show your working.
Mantissa
Exponent
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Explain why a binary representation is sometimes only an approximation to the real number it represents.
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The rest of this paper
11 more questions- Q2Data Representation4M
- Q3Data Representation5M
- Q4Communication and Internet Technologies3M
- Q5System Software5M
- Q6System Software · Computational Thinking and Problem-solving7M
- Q7Hardware and Virtual Machines5M
- Q8Artificial Intelligence (AI)5M
- Q9Computational Thinking and Problem-solving13M
- Q10Hardware and Virtual Machines4M
- Q11Further Programming9M
- Q12Further Programming · Data Representation9M