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Wired and Wireless Networks

The first video explores the two main types of networks: local area networks (LAN) and wide area networks (WAN).  The reasons for networking stand-alone computers are outlined, and the potential disadvantages too.  The connection options for devices on a network are briefly mentioned and covered in more detail in...

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2010 to date

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Storage

The first video explains why a computer needs secondary storage, and explains what is meant by primary and tertiary storage.

The second video explains what is meant by the term “capacity” of storage devices.  The relative size of different types of files is introduced.  (More detailed explanations of this...

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2010 to date

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Systems Architecture

The first video explores the first computers that had stored programs in the same memory space as the data required for them.  This is known as the von Neumann architecture and is still the foundation principle on which most computers are still built today.  We take the lid off a central processing unit and explain...

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2010 to date

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Memory

The first video explores the purpose of both RAM and ROM in a typical computer system.  The differences between the two memory types are outlined.

The second video considers what happens when a modern multi-tasking operating system runs out of physical RAM.  Does it output a “memory full” message and refuse...

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Craig ’n’ Dave OCR GCSE Computer Science

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2010 to date

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Astro Pi Worksheet

This simple worksheet explains the inputs, sensors and outputs on the Astro Pi board. It contains a section for students to fill in with their ideas and a description of what they would use the Astro Pi for on the International Space Station.

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2010 to date

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Every Drop Is Precious

This Astro-Pi resource for upper-primary and lower-secondary schools looks at water as a scarce resource on Earth and in space, how it is used by the human body and how it is recycled on the International Space Station (ISS). Parallels with the terrestrial water cycle are also made. The lesson activities also show...

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2010 to date

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Dodging Bullets

The International Space Station (ISS) is under constant threat from objects moving at speeds not often seen here on Earth. Space junk and micrometeoroids travel many kilometers each second, testing the impact shielding that protects the astronaut inhabitants. This Astro-Pi resource for secondary schools touches on...

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2010 to date

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Which Way Is Up?

For teachers of secondary school science, this Astro-Pi physics resource looks at gravity, microgravity and weightlessness. Students learn the fundamentals of gravitational force and potential energy, and apply these ideas to projectiles and orbiting bodies - particularly the International Space Station (ISS)....

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2010 to date

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Space Radiation

For teachers of advanced physics who may have an interest in computing, this Astro-Pi activity explores radiation in space and considers how it might affect human health. Humans currently live aboard the International Space Station, where they are exposed to radiation emanating from the Sun and from cosmic ray...

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2010 to date

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