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94 Maintaining and Troubleshooting the Gateway ALR 8300 Server
CMOS memory - Complementary metal oxide semiconductor memory.
CMOS memory is memory that is retained even when the computer is
turned off. The Setup program settings and other parameters are maintained
in CMOS memory.
Default - The option that the software or system uses when you have not
made a choice yourself.
Disc - A compact disc (CD).
Disk - The device used by the computer to store and retrieve information.
Disk can refer to a diskette or a hard disk.
Diskette - A removable disk, also called a floppy.
Hard drive - The drive installed inside your computer that stores all your
system and data files. Depending on its configuration, the computer may
have more than one hard drive. Each drive is assigned its own drive letter. If
you have only one drive, its drive letter is C, and it is often called “the C
drive.”
I/O - Input/output. Refers to devices, such as printers, whose purpose is to
enter data into a computer or extract data from a computer. An I/O device is
accessed through an I/O address: a location in memory reserved for the
device to exchange information between itself and the rest of the computer.
IRQ - Interrupt request line. The IRQ is a hardware line that a device uses
to signal the processor when the device needs the processor’s services. The
number of IRQs is limited by industry standards.
Operating system - A program that supervises the computer’s operation,
including handling I/O, networking and connectivity, and device drivers.
Path - A sequence of information that directs the system to the file it needs.
For example, c:\windows\bubbles.bmp is the path to a graphics file on
your system. The c: tells the system it is on the C hard drive, the \windows
tells the system it is in the windows folder, and bubbles.bmp is the file.
Pixel - A pixel is an individual dot in a graphic displayed on your computer.
Pixels are so close together that they look as though they are connected.
POST - Power-on self-test. POST tests your computer’s components
whenever you turn on the computer.
4081TL.book Page 94 Tuesday, December 22, 1998 1:27 PM