17
Knowing the Parts 2
ExpressCard Slot
One 26pin Express card slot is available to support one ExpressCard/34mm or one
ExpressCard/54mm expansion card. This new interface is faster by using a serial bus
supporting USB 2.0 and PCI Express instead of the slower parallel bus used in the PC
card slot. (Not compatible with previous PCMCIA cards.)
Microphone Input Jack
The mono microphone jack (1/8 inch) can be used to connect an external microphone or output
signals from audio devices. Using this jack automatically disables the built-in microphone. Use
this feature for video conferencing, voice narrations, or simple audio recordings.
Headphone Output Jack
The stereo headphone jack (1/8 inch) is used to connect the Notebook PC’s audio out signal to
amplied speakers or headphones. Using this jack automatically disables the built-in speakers.
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