CPU

CPU stands for Central Processing Unit.

The CPU processes all important information used by the computer.

Arithmetic Logic Unit (ALU)- Performs basic operations.
Control Unit (CU)- Manages other components.
Cache- High-speed memory

Clock Speed- The speed at which a microprocessor operates, measured in Hz.

Dual Core and Quad Core mean the amount of cores the CPU has. Dual is 2 and quad is 4. You can also have Oct Core. The more cores the faster the CPU will process data.

The CPU is located on the motherboard. Locked in place and usually with a layer of heat paste on top.

It is better (also expensive) to get a CPU with more cores.