O Level Computer Science 2210, topic 1.1
Number systems: past paper questions
14 Cambridge O Level Computer Science 2210 questions on Number systems (1.1) from 11 papers, 2023 to 2026. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 14
- Papers
- 11
- Years
- 2023 to 2026
- Total marks
- 143
- Average per question
- 10.2 marks
- Largest question
- 22 marks
By type: Structured 14
How hard the questions are
- Recall0
- Apply10
- Analyse4
- Not banded0
Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.
Command words
- showApply11 questions
- giveRecall10 questions
produce an answer from a given source or recall/memory
- convertApply9 questions
- explainAnalyse4 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- completeApply3 questions
- identifyRecall3 questions
name/select/recognise
- stateRecall3 questions
express in clear terms
- describeApply2 questions
state the points of a topic / give characteristics and main features
- useApply2 questions
- calculateApply1 question
work out from given facts, figures or information
Where the questions come from
By year
- 20263
- 20254
- 20244
- 20233
By session
- May/June10
- Oct/Nov4
By paper
- Paper 114
Questions on this topic
Showing 12 of 14, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 3May/June 2026, paper 11Structured9 marks
Hexadecimal and binary are two examples of a number system. Give one other example of a number system.
- Try this questionQuestion 1Oct/Nov 2025, paper 12Structured13 marks
A toy store gives each of the toys it sells a unique code. The codes are 3-digit hexadecimal codes, for example A4B. A computer is used to store a database of the codes.
- Try this questionQuestion 3Oct/Nov 2024, paper 12Structured13 marks
A user enters data that is hexadecimal into a computer system. The data is converted to binary to be processed by the computer. Give one similarity between hexadecimal and binary.
- Try this questionQuestion 2Oct/Nov 2023, paper 12Structured10 marks
A register stores the binary number: 1 1 1 0 0 0 1 1 Give the denary number for the binary number stored in the register.
- Try this questionQuestion 2Oct/Nov 2025, paper 12Structured7 marks
Two binary numbers are stored in a computer. Add the two binary numbers using binary addition. Give your answer in binary.
- Try this questionQuestion 2May/June 2024, paper 11Structured4 marks
Hypertext markup language (HTML) colour codes can be represented as hexadecimal. Tick (✓) one box to show which statement about the hexadecimal number system is incorrect.
- Try this questionQuestion 1May/June 2023, paper 11Structured11 marks
Binary is a number system used by computers. Tick (✓) one box to show which statement about the binary number system is correct.
- Try this questionQuestion 2May/June 2025, paper 11Structured9 marks
A clothes store has a ticket system to allow customers to speak to a personal shopper. The ticket displays a ticket number in hexadecimal, for example 11B. The ticket system has an output device that creates a paper ticket.
- Try this questionQuestion 3May/June 2024, paper 11Structured5 marks
The binary number 10100011 is stored in random access memory (RAM). A logical left shift of three places is performed on the binary number. Give the 8-bit binary number that will be stored after the shift has taken place.
- Try this questionQuestion 2May/June 2023, paper 12Structured10 marks
Binary numbers can be converted to hexadecimal. Convert the two binary numbers to hexadecimal. 10010011 ..................................................................................................................................
- Try this questionQuestion 1May/June 2025, paper 12Structured13 marks
A computer stores data temporarily in random access memory (RAM). RAM is one example of primary storage. Give one other example of primary storage.
- Try this questionQuestion 3May/June 2024, paper 12Structured11 marks
Binary is a base 2 number system. Give the name of the number system that is base 16.