Epson Progression U12 - Manual (Page 206)

Read
To gather data from one source (such as a disk) and transfer it
to a device (such as a monitor screen or a printer). 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. See also
Write.
Read/write head
The physical device inside a disk or tape drive that reads data
from and writes data to the magnetic surface of the disk or tape.
Real-time clock
A clock inside the computer that keeps track of the time and
date, even when the computer is turned off, by using power
from a backup battery.
Refresh rate
The frequency with which a monitor can redraw a screen
image. The faster the refresh rate, the less the screen will flicker.
The Wingine video controller in your computer provides
extremely fast refresh rates, up to 72 Hz.
Reset
To restart a computer without turning it off. You can reset your
computer by pressing (warm reset) or the
RESET button (cold reset). Resetting erases all data stored in
RAM and reloads your operating system.
ROM
Read Only Memory. A portion of memory that can only be read
and cannot be modified. ROM retains its contents even when
you turn off the computer by using power from a backup
battery.
Glossary 19