Compatibility Guide

150 Glossary
COM n
The device names for the first through fourth serial ports on your system are
COM1, COM2, COM3, and COM4. The default interrupt for COM1 and COM3
is IRQ4, and the default interrupt for COM2 and COM4 is IRQ3. Therefore, you
must be careful when configuring software that runs a serial device so that you
don't create an interrupt conflict.
config.sys file
The config.sys file is executed when you boot your system (before running any
commands in the
autoexec.bat file). This start-up file contains commands that specify
which devices to install and which drivers to use. This file also contains commands
that determine how the operating system uses memory and controls files.
ConsoleOne
®
Novell
®
ConsoleOne is a Java-based foundation for graphical utilities that
manage and administer network resources from different locations and platforms.
ConsoleOne provides a single point of control for all Novell and external products.
controller
A chip that controls the transfer of data between the microprocessor and memory
or between the microprocessor and a peripheral device such as a disk drive or the
keyboard.
control panel
The part of the system that contains indicators and controls, such as the power
switch, hard drive access indicator, and power indicator.
conventional memory
The first 640 KB of RAM. Conventional memory is found in all systems. Unless
they are specially designed, MS-DOS
®
programs are limited to running in
conventional memory.
COO
Abbreviation for cost of ownership.
cooling unit
Sets of fans or other cooling devices in a system chassis.