The Components of the System Unit

1. Processor

1.1. Multi‐core processor

1.2. Dual‐core processor

1.3. Quad‐core processor

2. Memory

2.1. Nonvolatile memory

2.1.1. ROM

2.1.2. flash memory

2.1.3. CMOS

2.2. Volatile memory

2.2.1. RAM

3. Ports and Connectors

3.1. USB port

3.2. Firewire port

3.3. Bluetooth port

3.4. SCSI port

3.5. eSATA port

3.6. IrDA port

3.7. Serial port

3.8. MIDI port

4. Buses

4.1. PCI bus

4.2. PCI Express bu

4.3. Accelerated Graphics Port

4.4. USB and FireWire bus

4.5. PC Card bus

5. Bays

5.1. drive bay

6. Power Supply

6.1. AC adapter

6.2. power supply