GCSE Computer Science Shorts

Learn how the CPU fetches, decodes and executes instructions.

Learn how cache memory helps the CPU access frequently used data more quickly.

Learn what overflow means when a value is too large for the available bits.

Learn why ASCII cannot represent every character used around the world.

Learn why hexadecimal is used as a shorter way to represent binary values.

Learn why computers use 1s and 0s to represent data and instructions.

Learn how data is split into packets and sent across a network.

Learn the key difference between temporary RAM and permanent ROM.

Learn the difference between fast temporary memory and long-term storage.

Learn the difference between compilers and interpreters in GCSE Computer Science.

Learn the difference between phishing and pharming cyber attacks.

Paper 1 Shorts