Hardware

1. 5. Buses allow different components to communicate with each other. Buses include wires, optical fibers, and any software that makes them operate.
   6. Every computer also has a power unit that feeds electricity to the computer’s clock.
2. The Storage (also Secondary Storage) component of the computer permanently stores data (until you decide to delete it.)
   1. Hard disk drives have higher storage capacity, are cheap, but are slower.
   2. Solid-state drives are faster and use less power but are more expensive.