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Glossary
double density -
A technique used to increase bit density on a magnetic storage medium to twice the amount of single
density so that more information can be stored in the same amount of space.
double-sided diskette -
A magnetic medium capable of storing information on both its surfaces.
drives -
Devices that rotate magnetic media and access data by means of a read-write head.
dust cap -
A plastic cover that protects connectors on your computer from dirt.
expanded memory -
Memory that utilizes an area of the system memory as a window, through which pages of data are
"passed."
expansion bus connector -
A coupling device that allows you to connect the optional Expansion Unit or the optional
3.5-inch Floppy Drive Unit to your computer.
expansion card -
A card you can install in the expansion slot of your computer that adds capabilitites to the computer
such as additional memory.
Expansion Unit -
A hardware option that increases the capabilities of your computer.
extended memory -
Internal RAM above 1,024 Kb.
external commands -
The utility programs of an operating system (for example, MS-DOS) that enable you to perform
occasional operations such as copying an entire floppy or partitioning a hard disk drive.
external devices -
Devices, usually for input and output, connected to your system to increase its capability and
usefulness. Examples include printers and modems.
external monitor -
A hardware option you can connect to your computer via a connector.
Glossary 7