Registers

• General-purpose registers


  They store the results of intermediate calculations during larger computations
• Dedicated or special-purpose registers


  They are used for specific functions within the processor
• Current Instruction Register (CIR)


  Holds the current instruction that the processor is executing
• Memory Address Register (MAR)


  Temporarily stores memory addresses used when searching for data in RAM
• Memory Data Register (MDR)


  Temporarily holds data values or instructions that are read from or written to the main memory
• Program Counter (PC)


  Stores the address of the next instruction to be executed by the processor
• Accumulator register


  Stores the result of any calculation performed by the processor