The Components of the System Unit

1. Memory

1.1. The operating system and other system software

1.2. Application programs

1.3. Data being processed and the resulting information

2. Ports and Connectors

2.1. SCSI port

2.2. MIDI port

2.3. Serial port

3. The System Unit

3.1. Drive bay(s)

3.2. Power supply

3.3. Sound card

3.4. Video card

3.5. Processor

3.6. Memory

4. Processor

4.1. Mulit-core processor

4.2. Dual‐core processor

4.3. Quad‐core processor

5. Buses

5.1. PCI bus

5.2. PC Card bus

5.3. PCI Express bus

5.4. FireWire bus

5.5. USB