Epson 20 - Manual (Page 204)

Read
To move 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 inside the computer that keeps track of
the time and date, even when the computer is turned off.
Relative pathname
A pathname that does not begin with the backslash character. A
relative pathname tells MS-DOS how to find its way to a given
directory, starting at the current default directory. See also
Absolute
pathname.
Reset
To reload a computer’s operating system so you can retry a task
or begin using a different operating system. Resetting erases all
information in RAM.
RGB
Red Green Blue. A type of color monitor.
ROM
Read Only Memory. A portion of memory that can only be read
and cannot be used for temporary storage. ROM retains its
contents even when you turn off the power.
Root directory
The top level directory in MS-DOS, designated by a \
(backslash). All other directories are subdirectories of the root
directory or of other subdirectories.
RS-232C
A widely-used, standard type of serial interface. You can easily
connect an RS-232C-compatible device to the Equity 386.
Glossary 13