Epson Apex 20020, 20040 User Manual page 237

Monitor
The piece of hardware that contains the screen and displays
information.
Monochrome monitor
A monitor that displays in only one color, such as green or
amber, as opposed to a color monitor which can display in
several colors.
Mouse
A hand-held pointing device with one or more buttons. When
you slide the mouse over a flat surface in a certain direction,
the cursor moves in the same direction on the screen.
MS-DOS
Microsoft Disk Operating System. The operating system that
comes with your computer. See Operating system.
Numeric keypad
The number keys grouped to the right of the keyboard.
Operating speed
The speed at which the central processing unit can execute
commands. Also called execution speed. The Apex can run at
8 MHz or 12 MHz.
Operating system
A collection of programs (such as MS-DOS) that manages a
computer's operations. The operating system determines how
programs run and supervises all input and output.
Option card
A circuit board you install inside the computer to provide
additional capabilities, such as a modem, a hard disk controller,
or a mouse.
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