Hardware, The physical components of a computer, Software, Describes programs and instructions that are executed by the processor, Central Processing Unit, Executes instructions ., Program counter, contains the address of the next instruction to be executed., RAM, Non-volatile memory, ROM, Is volatile memory, information here is permanent., Resistors, Fast way of accessing data., Program Counter, Contains the address of the next instruction to be exceuted, Accumulator, To store data to be operated on, Arithmetic and logic, Preforms all the basic arithmetic and logical operations, Control Unit, To direct and coordinate most of the operations in the computer. It instructs the memory, logic unit and both output and input devices of the computer on how to respond to the programs instructions.

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