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The MS-DOS device name for the con- sole, which includes your computer’s keyboard and text displayed on the screen.

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When you boot your computer, MS-DOS runs any commands contained in the text file, config.sys (before running any com- mands in the autoexec.bat file). A config.sys file is not required to boot MS-DOS, but provides a convenient place to run commands that are essential for setting up a consistent computing environ- ment—such as loading device drivers with a device= statement.

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A terminal that is attached to a filer’s serial port and is used to monitor and manage filer operation.

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A chip or expansion card that controls the transfer of data between the micro- processor and a peripheral, such as a disk drive or the keyboard.

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The first 640 KB of RAM. Unless they are specially designed, MS-DOS programs are limited to running in conventional memory. See also EMM, expanded mem-

ory, extended memory, HMA, memory manager, upper memory area, and XMM.

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A coprocessor relieves the computer’s microprocessor of specific processing tasks. A math coprocessor, for example, handles numeric processing. A graphics coprocessor handles video rendering. The Intel®Pentium® microprocessor includes a built-in math coprocessor.

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Abbreviation for characters per inch.

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Abbreviation for central processing unit. See also microprocessor.

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In character-based MS-DOS programs, the cursor is usually a block or an under- score (possibly blinking) that represents the position at which the next character typed will appear. Windows programs can design their own cursors—common cur- sor symbols include the pointer arrow and the text-insertion I-beam.

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Acronym for digital-to-analog converter.

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Acronym for digital audio tape.

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Abbreviation for decibel(s).

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Abbreviation for adjusted decibel(s).

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Abbreviation for direct current.

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Acronym for display data channel. A

VESA® standard mechanism that allows the system to communicate with the monitor and retrieve information about its capabilities.

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The Dell OpenManage program is a DMI browser that allows you to view informa- tion about various components of your system.

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A device driver allows the operating sys- tem or a program to interface correctly with a peripheral, such as a printer or net- work card. Some device drivers—such as network drivers—must be loaded from the config.sys file (with a device= state- ment) or as memory-resident programs (usually, from the autoexec.bat file). Oth- ers—such as video drivers—must load when you start the program for which they were designed.

4Dell PowerVault 720N, 740N, and 760N User’s Guide