34. Pearson Edexcel GCSE (1CP2) Topic 3A Common CPU components and their function

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EDEXCEL 1CP2 Specification Reference - Topic 3A: 3.1.1 - 3.1.3

This video takes the lid off a central processing unit and explain the key components including the registers, the control unit and the cache.

Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide.

00:00 Common CPU components and their function
00:07 Intro
00:12 CPU components
00:42 Arithmetic Logic Unit (ALU)
00:53 Control Unit (CU)
01:09 Cache
01:34 Clock
01:46 Registers
02:07 Buses
03:10 Recap
03:54 Going beyond the GCSE specification
04:11 CPU Components - Registers
04:33 Program Counter
04:59 Memory Address Register
05:15 Memory Data Register
05:31 Accumulator
05:51 Outro

Last updated: 22.07.25

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