Back of Computer Case (cont

Labeled Back View of Computer Case

1. Parallel Port
   The parallel port is one of the two original ports on the first personal computer. It is commonly known as the printer port since this port is used to connect your printer to your computer; however, with the rise in use of the USB ports, you can expect to see a decrease in the use of this port. Currently, a large number of parallel port printers are still manufactured and used on older computers that don’t have USB support.
2. Serial Port
   The serial port is the other original port on the first personal computer. Serial ports can be used to plug in devices such as dial-up modems and other devices. On recent computers, the serial port has been replaced by the USB port. This is due to the fact that most peripherals use the USB drive.
3. Expansion Slots
   These empty slots are where expansion cards are added to computers. For example, if your computer did not come with a video card, you could purchase one and insert it here.
4. FireWire Port
   FireWire is actually the Apple brand name for the IEEE 1394 port, but the term caught on and it this port is commonly referred to as the FireWire port. It is the standard port used with digital video cameras and high-resolution scanners. FireWire replaced the Parallel SCSI, but it is not on every computer; however, you can buy an adapter card to add FireWire ports to your computer. The labeled image does not include a FireWire port.