Epson Apex User Manual page 147

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 clears
RAM.
R G B
Red Green Blue. An RGB monitor displays in high-resolution
color.
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 \ (back-
slash). All other directories are subdirectories of the root
directory.
RS-232C
A widely-used, standard type of serial interface. You can easily
connect an RS232C-compatible device to the Apex computer.
Sector
A contiguous section of a disk track that provides an address at
which the computer can access data.
10 Glossary