CPU Registers

• ALU: Arithmetic Logic Unit. Peforms arithmetic Calculations, contains Accumulator: stores ALU data.
• Registers: Provide the fastest way to access data. Types: Program Counter, Memory Address Register, Memory Data Register, Accumulator.
• Program Counter holds address of instruction for each cycle.
• Memory Address Register(MAR) Stores memory address to be used by CPU.
• Memory Data Register(MDR) Stores data or instruction about to be fetched.
• CU: Control Unit, to manage the Fetch, Decode, Execute Cycle. Controls Flow of data.