Epson LT-286e CPU, Glossary, Monochrome Display Adapter, A CPU chip, such as the 80C286. See CPU, An optional component that adds memory to your computer

Main unit

The part of the computer that houses the central processing unit, random access memory, disk drives, and other supporting circuitry.

M D A

Monochrome Display Adapter.

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 the oscillation frequency of a computer’s internal timing clock. One megahertz is one million cycles per second. The Equity LT-286e operates at 8 or 12 MHz.

Memory

The area where the computer stores data. Memory contents may be permanent (ROM) or temporary (RAM). See also ROM and RAM.

Memory expansion module

An optional component that adds memory to your computer.

Memory-resident program

A program you can access while another program is running. An example might be a notepad utility that you can use while working in a spreadsheet program.

Microprocessor

A CPU chip, such as the 80C286. See CPU.

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