Decoding Computation: Explaining How Computers Really Work

Decoding Computation: Explaining How Computers Really Work



Explore the fundamentals of computing: computer architecture, binary logic, data processing, circuits & more. Supported by Google


Understand computation, the basis of every computer system

On this course, you’ll gain an understanding of how computers work at a fundamental level.

You’ll explore system architecture, along with how computers use binary and logic. Once you’ve examined the von Neumann model of computer architecture and the Fetch-Execute cycle, you’ll learn to build a range of simple circuits for maths, and then simulate various logic gates.

Ultimately you’ll complete the course with an understanding of the processes that underpin every modern computer – from supercomputers to smartphones, and everything in between.

What topics will you cover?

How computers use binary arithmetic

How transistors can act as digital switches and be combined to create logic gates

Creating truth tables for AND, NOT and OR gates, individually or combined

How logic gates can be combined to produce digital circuits that can perform a calculation

Von Neuman Architecture and the Fetch-Execute cycle

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Learning on this course

On every step of the course you can meet other learners, share your ideas and join in with active discussions in the comments.

What will you achieve?

By the end of the course, you‘ll be able to...

  • Explain how transistors can act as digital switches and be combined to create logic gates
  • Produce truth tables for AND, NOT and OR gates, individually or combined
  • Explain how computers use binary arithmetic
  • Describe how logic gates can be combined to produce digital circuits that can perform a calculation
  • Describe Von Neuman Architecture and the Fetch-Execute cycle

Who is the course for?

This course would suit teachers of KS3 and GCSE Computer Science - plus educators from other countries that teach at an equivalent level.

Who developed the course?

Raspberry Pi Foundation

The Raspberry Pi Foundation works to put the power of digital making into the hands of people all over the world, so they are capable of understanding and shaping our increasingly digital world

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National Centre for Computing Education


This course is part of the National Centre for Computing Education (NCCE). Funded by the Department for Education and partners, we aim to change the way computing is taught in schools across England, and enable more young people to benefit from studying this important subject.




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