A Level Computer Science 9618, topic 4.3
Bit manipulation: past paper questions
15 Cambridge A Level Computer Science 9618 questions on Bit manipulation (4.3) from 14 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
- 15
- Papers
- 14
- Years
- 2023 to 2026
- Total marks
- 112
- Average per question
- 7.5 marks
- Largest question
- 11 marks
By type: Structured 15
How hard the questions are
- Recall2
- Apply7
- Analyse6
- 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
- completeApply8 questions
add information to an incomplete diagram or table
- writeRecall5 questions
write an answer in a specific way
- explainAnalyse4 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- convertApply3 questions
- describeApply3 questions
state the points of a topic / give characteristics and main features
- identifyRecall3 questions
name/select/recognise
- showApply3 questions
- compareAnalyse2 questions
identify/comment on similarities and/or differences
- stateRecall2 questions
express in clear terms
- giveRecall1 question
produce an answer from a given source or recall/memory
Where the questions come from
By year
- 20262
- 20255
- 20246
- 20232
By session
- May/June9
- Oct/Nov6
By paper
- Paper 115
Questions on this topic
Showing 14 of 15, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 3May/June 2026, paper 11Structured9 marks
The following table shows part of the instruction set for a processor. The processor has two registers: the Accumulator (ACC) and an Index Register (IX). instruction | explanation LDM #n | Immediate addressing.
- Try this questionQuestion 4Oct/Nov 2025, paper 11Structured4 marks
The table shows part of the instruction set for a processor. The processor has one register, the Accumulator (ACC).
- Try this questionQuestion 8Oct/Nov 2024, paper 12Structured11 marks
The following table shows part of the instruction set for a processor. The processor has two registers, the Accumulator (ACC) and the Index Register (IX). Instruction | Explanation Opcode | Operand | LDM | #n | Immediate addressing.
- Try this questionQuestion 8Oct/Nov 2023, paper 11Structured10 marksHas a diagram
Identify the purpose of the first pass of a two-pass assembler.
- Try this questionQuestion 7May/June 2026, paper 13Structured9 marks
A program is written in assembly language. Complete the table by writing the name of each mode of addressing.
- Try this questionQuestion 2Oct/Nov 2025, paper 13Structured6 marks
Data in a computer system is represented in binary. Put one tick (✓) in each row to identify the minimum number of bits used to store each example of data.
- Try this questionQuestion 7Oct/Nov 2024, paper 13Structured6 marks
The following table shows part of the instruction set for a processor. The processor has two registers, the Accumulator (ACC) and the Index Register (IX). | Instruction | | Explanation | |---|---|---| | Opcode | Operand | | | LDM | #n | Immediate addressing.
- Try this questionQuestion 4May/June 2023, paper 12Structured6 marks
Data in a computer is stored in binary form. State the number of unique binary values that can be represented in 16 bits.
- Try this questionQuestion 8May/June 2025, paper 11Structured7 marks
The following table shows part of the instruction set for a processor. The processor has two registers: the Accumulator (ACC) and an Index Register (IX). Trace the program currently in memory using the following trace table.
- Try this questionQuestion 8Oct/Nov 2024, paper 13Structured6 marks
Convert the hexadecimal number 1FAB into denary. Working Denary value
- Try this questionQuestion 7May/June 2025, paper 12Structured8 marks
The following table shows part of the instruction set for a processor. The processor has one register: the Accumulator (ACC). Instruction | Explanation Opcode | Operand | LDD | <address> | Direct addressing.
- Try this questionQuestion 4May/June 2024, paper 11Structured7 marks
The following table shows part of the instruction set for a processor. The processor has two registers: the Accumulator (ACC) and an Index Register (IX).
- Try this questionQuestion 5May/June 2024, paper 12Structured7 marks
The following table shows part of the instruction set for a processor. The processor has two registers: the Accumulator (ACC) and an Index Register (IX).
- Try this questionQuestion 3May/June 2024, paper 13Structured7 marks
The following table shows part of the instruction set for a processor. The processor has two registers: the Accumulator (ACC) and an Index Register (IX). Instruction Opcode | Operand | Explanation LDM | #n | Immediate addressing.