Hardware Components

• Computer system hardware components include devices that perform the functions of input, processing, data storage and output
• hardware=device

• A central processing unit(CPU) is a part of a computer that consists of three associated elements:
1. Arithmetic/logic units 
• The arithmetic logic unit(ALU) performs mathmatical calculations and makes logical comparisons
• The control unit sequentially accesses program instructions, decodes(binary function) them and coordinates the flow of data in and out of the ALU, the registers primary storage and secondary storage devices.
2. The control unit(control data)
3. The register areas