US Robotics 56K Series, Руководство пользователя

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channels using telephone channel
modems are established at set bit rates,
commonly 2400, 4800, 9600, 14,400,
28,800 and higher.
bits per second (bps)
This is the bits ( binary digits ) per
second rate. Thousands of bits per
second are expressed as kilobits per
second or kbps.
buffer
A memory area set aside to be used as
temporary storage during input and
output operations. An example is the
modem's command buffer.
byte
A group of binary digits stored and
operated upon as a unit. In user
documentation, the term usually refers
to 8-bit units or characters . One
kilobyte (KB) is equal to 1,024 bytes or
characters; 640 KB indicates 655,360
bytes or characters.
carrier
A tone signifying a connection the
modem can alter to communicate data
across telephone lines.