Epson Apex, User Manual

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LED
Light Emitting Diode. A substance that illuminates when
electricity passes through it, like the indicator lights above the
Apex’s keyboard.
Main unit
The Apex computer.
Megabyte (MB)
A unit used to measure storage space (in a computer’s memory
or on a disk). One megabyte equals 1,048,576 bytes.
Megahertz (MHz)
A unit used to measure oscillation frequency (of a computer’s
internal timing clock). A megahertz is one million cycles per
second. The Apex computer operates at 4.77 MHz and 9.54
MHz.
Memory
The area where the computer stores data. Memory contents can
be permanent and inalterable (ROM) or temporary (RAM).
MGA
Multi-graphics adapter. A type of video card that can be oper-
ated with more than one kind of monitor. The multi-graphic
video card that comes with the Apex operates a TTL mono-
chrome monitor or a color/graphics monitor.
Microprocessor
A small version of a CPU contained on one semiconductor
chip.
Modem
A device that allows a computer to transmit signals over tele-
phone lines so it can send and receive data. Modem stands for
Modulator/DEModulator.
Monitor
The piece of hardware that contains the screen and displays
information.
Glossary 7