Instruction Manual

local echo A method of communication in which your

modem or software displays data “locally” on your screen,

without relying on the host computer to echo the characters

back.

log off To type a command to the host computer that

terminates the communications session.

log on To enter a series of responses to prompts by the

host computer to identify yourself, your password,

sometimes your terminal, and so forth, to start a

communications session.

mainframe computer A large computer whose speed

and storage capacity allow it to handle huge amounts of data

and work with many terminals.

millisecond One thousandth of a second; abbreviated ms.

MNP An abbreviation for Microcom Networking Protocol.

MNP Classes 2–4 are error control protocols. MNP Class 5 is

a data compression protocol.

modem A device for converting digital information into

tones that can be transmitted over telephone lines. The

tones are modulated (changed in frequency, amplitude, or

phase) to represent the information; modem stands for

“modulator/demodulator.”

modulate To modify or alter a signal to transmit

information; for example, conventional broadcast radio

transmits sound by modulating the amplitude (amplitude

modulation, or AM) or the frequency (frequency

modulation, or FM) of a carrier signal.

Glossary