Appendices

Appendix A Computer connection types

Lurking at the back of most computers or hidden beneath a front flap are a series of connections used to attach external devices to your machine:

USB is the standard used for attaching most cameras, scanners and printers.

Firewire is a faster scanner and camera connection than USB.

Screen/video port connects the computer to the screen.

Mouse port is color coded to match the mouse plug.

Keyboard connects to the computer using a similar color-coded plug to the mouse.

SCSI ports are sometimes used to connect scanners and external hard drives.

Printer or parallel port connections are not used as much as they used to be. Most printers are now connected via USB.

Serial used to be the connection ...

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