Epson ActionPC 5000 User Manual page 138

Glossary
BIOS
Basic Input/Output System. Routines in ROM (Read Only
Memory) that handle the transfer of information in your
operating system.
Cache
A high-speed memory buffer that stores frequently used data
where your microprocessor can access it faster. Your computer
includes 8KB of internal cache built into the microprocessor,
and this can be expanded to 256KB with external cache chips.
CPU
Central Processing Unit. The primary device that interprets
instructions, performs tasks, keeps track of stored data, and
controls input and output operations. See also Microprocessor.
Device driver
A file containing instructions that allow your computer to
recognize and communicate with a device. The device may be a
printer, monitor, or other type of device.
DPMS
Display Power Management Signaling. The standards
established to define power management states for low power
consumption monitors, and to determine how the display
controller signals the monitor to enter a low power mode.
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