System architure Flashcards
What is the purpose of the processor?
It processes all the data and instructions
What does the processing power of the CPU depend on?
Clock speed, Number of cores & Cache size
What are the CPU’s main three parts?
The Control Unit (CU), The Arithmetic Logic Unit (ALU), The Cache
What is an Embedded System?
A computer system made up of both hardware and software
What does an Embedded System do?
Used as a control system and is used for very specialised tasks
What is Von Neumann Architecture?
Describes a system where the CPU runs the programs stored in memory
What does the Control Unit have?
Program Counter
What does the Program Counter do?
Holds the memory address of the instruction for each cycle
What does the ALU have?
Accumulator
What does the Accumulator do?
Stores results of calculations in the ALU.
What does the registers contain?
Memory Address Register (MAR) & Memory Data Register (MDR)
