Ports+and+Slots+Revisited

=Ports and Slots Revisited=

The system or motherboard includes several standard ports:

 * Serial Port for attaching devices that send/receive messages one bit at a time (modems)
 * Parallel Port for attaching devices that send/receive bits in groups (printers)
 * Keyboard/Mouse Port for attaching a keyboard and a mouse

Other ports are typically included on expansion boards rather than the system board:

 * Video Port used to plug in a color monitor into the video board
 * Microphone, speaker, headphone, MIDI ports used to attach sound equipment
 * SCSI port allows several peripherals to be strung together and attached to a single port
 * LAN port used faster connection to a local-area network (LAN)