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Your Computer at a Glance 19
I Main power switch
g SCSI port
Connects your Macintosh to SCSI
devices, such as hard disk drives,
scanners, and printers. See your
Macintosh User’s Guide for
more information.
Power plug
Hard disk drive
(internal)
V ADB port
Connects your Macintosh
to input devices, such as a
keyboard or a trackball. See
your Macintosh User’s Guide
for more information.
[ Printer port
W Modem port
Hole for optional
security screw
You can use the screws
that came with your computer
to secure the back panel.
Expansion card access cover
See the “Special Features”
section of this book to learn how
to install expansion cards.
Sound input port
Connects your Macintosh
to another audio source
such as a compact disc or
an audio cassette player.
Sound output port
Connects your Macintosh
to sound output devices,
such as a pair of headphones.
Additional
communications port
If you have a high-speed
networking or communications
port, it is located here.
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