The Components of the system unit
by Pisarn Mungngam

1. Ports and Connectors
1.1. A port is the point at which a peripheral attaches to or communicates with a system unit (sometimes referred to as a jack)
1.2. A connector joins a cable to a port
2. Data Representation
2.1. Analog
2.2. Digital
3. Processor
3.1. Multi‐core processor
3.2. Dual‐core processor
3.3. Quad‐core processor
4. Memory
4.1. The operating system and other system software
4.1.1. Volatile memory
4.2. Application programs
4.3. Data being processed and the resulting information
4.3.1. Nonvolatile memory