The CPU

CPU function

Processes all the data and instructions that make the system work

Processing power of a CPU depends on what

Cache size, number of cores, and clock speed

Control unit function

Manage the fetching, decoding and executing of program instructions by following the fetch-execute cycle

What register does the ALU contain

Accumulator register

What does Cache do?

Stores regularly used data so that the CPU can access it quickly when needed

What are the different levels of cache memory?

L1- quickest with lowest capacity

L2-slower but can hold more

L3- slowest but has the most capacity

When did Von Neumann come up with his design

1945

Accumulator function

Stores intermediate results of calculations in the ALU

MAR function

Holds any memory adress that is about to be used by the CPU

MDR function

Holds actual data or instruction