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3.4 Computer SystemsIntroduction

The Super Calculator

Part of Arithmetic Logic Unit (ALU) · GCSE GCSE Computer Science revision

This introduction covers The Super Calculator within Arithmetic Logic Unit (ALU) for GCSE Computer Science. Revise Arithmetic Logic Unit (ALU) in 3.4 Computer Systems for GCSE Computer Science with 15 exam-style questions and 12 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 1 of 7 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 1 of 7

Practice

15 questions

Recall

12 flashcards

The Super Calculator

Imagine a calculator that can not only do maths (5+3, 10×2) but can also make decisions ("Is 7 greater than 5?", "Are both conditions true?"). That's the Arithmetic Logic Unit. Every time your computer adds numbers in a spreadsheet, checks if a password is correct, or decides whether to run an IF statement - the ALU is doing the work. It's called the "calculator of the CPU" but it's so much more powerful than that!

Keep building this topic

Read this section alongside the surrounding pages in Arithmetic Logic Unit (ALU). That gives you the full topic sequence instead of a single isolated revision point.

Deep Dive: Why Logic Operations MatterThe Three Types of ALU OperationsALU Operation Examples

Practice Questions for Arithmetic Logic Unit (ALU)

What does ALU stand for?

  • A. Arithmetic Logic Unit
  • B. Automatic Load Utility
  • C. Address Logic Unit
  • D. Arithmetic Load Unit
1 markfoundation

Explain how the role of the ALU differs from the role of the Control Unit (CU).

2 marksstandard

Quick Recall Flashcards

What does ALU stand for?
Arithmetic Logic Unit
Where are ALU results stored?
Accumulator (ACC)

15 questions on Arithmetic Logic Unit (ALU) — practise free

Instant marking, adaptive difficulty, and 12 spaced repetition flashcards. Free until your GCSEs.

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Deep Dive: Why Logic Operations Matter