Learning objective

Utilize the two’s complement system to represent both positive and negative 8-bit binary integers. Note: Convert positive and negative binary or denary integers to and from two’s complement 8-bit integers.

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Exam focus

Cambridge IGCSE Computer ScienceData representation

Study support

Understand this objective

Quick explanation

This point belongs to Number systems, especially Number systems outcomes.
You need to be able to utilize the two’s complement system to represent both positive and negative 8-bit binary integers. Note: Convert positive and negative binary or denary integers to and from two’s complement 8-bit integers.
The key ideas to know are Use and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

UseExplain

Why it matters

This objective helps connect Number systems outcomes to exam-style questions, flashcards, and revision notes for Number systems.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 1Computer Systems1 marks

Description

Convert the decimal number -3 to its 8-bit two's complement representation.

a
State the two's complement representation of -3.
Your answer
Aim for approximately 1 distinct marking point.
[1]

Revision notestopic notes

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