John Von Neumann

John Von Neumann

Who is he?

John Von Neumann is the scientist who made computers be capable of storing and saving instructions or information.

Registers of CPU

Accumulator: Store the results of the ALU

Memory Address Register (MAR): Holds the address of the next instruction to be fetched

Memory Data Register (MDR): Takes the instruction from the RAM to be decoded

Program Counter (PC): Tells us the address of the next instructions

Current instructions Register (CIR): Holds the instruction before it gets decoded

Control Unit

The (CU) controls the flow of data in the CPU

What Cache and RAM are and how do they interact with the CPU?

Cache is faster and smaller than RAM but they both hold instructions and contain addresses for the CPU.