If you see my notes and are confused about the unit numbers, i am too. This website has incorrect unit numbers that are not based on the exam board. Just look at the name of the notes to see if that is what you are looking for. This is a content heavy chapter. I would advise you to learn how to draw the different architectures that you learn, as well as understanding in detail the fetch decode execute cycle. If you can memorise all notes and understand them you can get a guaranteed A.

Notes for the computer systems and architecture module of AQA A Level Computer Science. Information is summarised into bullet points and can be easily turned into flashcards. Condense notes with diagrams

We look at the make up of a CPU with the different registers, buses and memory to discover their functions within computer. Their is also a section on GPUs as well as the fetch-decode-execute cycle

In this summary, we take a look at the different types of processors, including CISC, RISC, and the different architectures.

In this summary, we take a look at the factors affecting the performance of a CPU, including year 1 and year 2 content, ranging from clock speed; number of cores to pipelining)