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Epson LT - 286e User Manual

Page 148

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Read

To copy data from one area to another. For example, when you

open a text file stored on disk, the computer reads the data from

the disk and displays it on the screen.

Read/write head

The physical device inside a disk drive that reads and records

data on the magnetic surface of a disk.

Real-time clock

A battery-powered clock in the computer that keeps track of

the current time and date even when the computer’s power is

turned off.

Reset

To reload a computer’s operating system so you can retry a task

or begin using a different operating system. Resetting erases the

computer’s RAM.

RGB

Red-Green-Blue. A type of color monitor.

R O M

Read Only Memory. The portion of the computer’s memory

that contains permanent instructions and cannot be modified.

The power-on diagnostic programs, for example, are stored in

ROM. Unlike

RAM,

ROM retains its contents even after you

turn off the computer.

Root directory

The top-level directory on a diskette or hard disk. The root

directory is designated by a backslash (\ ). All other directories

are subdirectories of the root directory or of other subdirectories.

Glossary 17