20PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.

21Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.

22Game/MIDI port. This connector supports a joystick or a game pad for playing games, and MIDI devices for playing or editing audio files. (on audio models only)

23Microphone jack. This Mic (pink) jack connects a microphone. In 6-channel mode, the function of this jack becomes Bass/Center. (on audio models only)

24Line In jack. This Line In (light blue) jack connects a tape player or other audio sources. In 6-channel mode, the function of this jack becomes Rear Speaker Out. (on audio models only)

25Line Out jack. This Line Out (lime) jack connects a headphone or a speaker. In 6-channel mode, the function of this jack becomes Front Speaker Out. (on audio models only)

26Serial ports. These two 9-pin COM1/COM2 ports are for pointing devices or other serial devices.

27USB ports. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB devices such as a mouse and PDA.

28PS/2 keyboard port. This purple 6-pin connector is for a PS/2 keyboard.

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Chapter 1: Product introduction