9 min

1.1.1 The purpose of the CPU Bite size revision for GCSE Computer Science

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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)

the purpose of the CPU 

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)
Cache

the function of the CPU as fetch and execute instructions stored in memory 

clock speed


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Send in a voice message: https://podcasters.spotify.com/pod/show/bitesize-computer-science/message

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)

the purpose of the CPU 

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)
Cache

the function of the CPU as fetch and execute instructions stored in memory 

clock speed


---

Send in a voice message: https://podcasters.spotify.com/pod/show/bitesize-computer-science/message

9 min