1-10 Introducing Your Computer
Keyboard port
Connect the keyboard that comes with your computer to
this port. The keyboard port supports a personal system
(PS)/2
®
-compatible, 104-key keyboard with a 6-pin
mini DIN connector.
Mouse port
Attach the mouse that comes with your computer to this
port. The mouse port supports a PS/2-compatible
mouse.
Parallel port
Use this port to connect a parallel printer with a 25-pin
connector to the system.
Serial ports (COM1 and COM2)
Attach a serial device with a 9-pin connector to each
serial port. Serial devices include a pointing device,
serial printer, or modem.
Universal serial bus (USB) ports
Use these ports to connect a wide range of new USB
devices, such as printers, mice, joysticks, keyboards, and
telecommunication devices. The speed varies between
12 megabits per second (Mbps) for printers and
1.5 Mbps for mice and keyboards. You can daisy chain
up to 127 devices using USB ports.
Audio connectors
Depending on the model, these connectors are either
integrated on the system board or on a sound board. The
audio connectors include line out, line in, and
microphone in jacks, and a MIDI/game port.
The line out jack connects powered speakers and
other powered output devices.
The line in jack connects stereo audio devices, such
as an amplifier or a cassette or minidisc player for
playback or recording.