Hardware - Processor and Memory
CPU - Registers (2 of 2)


  • Accumulators - serve the purpose of holding data used in calculations.

  • Address Registers - are used for storing the memory location of data or instructions to be used by a program.

  • Stack Pointer - this register is used during sub-routine nesting and stack based arithmetic.

  • Status Register - this register provides a service to the CPU by maintaining the status of the last operation carried out by the ALU.

  • Instruction Pointer - sometimes referred to as the program counter, the pointer is responsible for retaining the memory address of the next instruction to be executed.