Von Neumann Architecture Flashcards
What is the purpose of the control unit? (2)
The control unit sends out control signals to other parts of the CPU. It also executes programs as part of the fetch-decode-execute cycle.
What are the two parts of the control unit?
The control unit contains the clock and the decoder.
What are registers within the CPU?
The registers in the CPU are tiny amounts of super-quick memory within the CPU.
What is the purpose of the MAR?
The MAR holds the address of the location in memory where data is to be retrieved or stored.
What is the purpose of the PC?
The PC holds the memory location address of the next instruction to be performed by the CPU.
What is the purpose of the MDR?
The MDR holds the data that has been retrieved from memory, or that is about to be stored in memory.
What is the name for registers within the CPU with predetermined purposes?
Registers within the CPU with predetermined purposes are known as special registers.
