i) Serial transmission
In serial transmission, bits flow in a continuous stream. It is the way most data is sent over
telephone lines. It is used by external modems typically, connected to a microcomputer through a
serial port. The technical names for such serial ports are RS-232C connector or asynchronous
communications port. .
ii) Parallel mode
In parallel transmission, bits flow through separate lines simultaneously (at the same time).
Parallel transmission is typically limited to communications over short distances (not telephone
lines). It is the standard method of sending data from a computer’s CPU to a printer.
Kavungya answered the question on May 14, 2019 at 08:34
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