Today we're looking at the purpose of the CPU, specifically the following parts from the OCR Computer Science Specification (https://www.ocr.org.uk/images/225975-specification-accredited-gcse-computer-science-j276.pdf)
Von Neumann architecture:
MAR (Memory Address Register)
MDR (Memory Data Register)
Program Counter
Accumulator common CPU components and their function:
ALU (Arithmetic Logic Unit)
CU (Control Unit)
Cachethe function of the CPU as fetch and execute instructions stored in memory