NETWORKING 2

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MULTIPLEXINGG

is the process of combining multiple signals into one signal, over a shared medium

DE-MULTIPLEXERR

is also a device with one input and multiple output lines. It is used to send a signal to one of the many devices.

MULTIPLEXERR

is a device that has multiple inputs and a single line output.

GEORGE OWEN SQUIERR

Who developed the telephone carrier multiplexing in 1910

FREQUENCY DIVISION MULTIPLEXING (FDM)

This technique uses various frequencies to combine streams of data, for sending them on a communication medium, as a single signal.

WAVELENGTH DIVISION MULTIPLEXING (WDM)

Is an analog technique, in which many data streams of different wavelengths are transmitted in the light spectrum. If the wavelength increases, the frequency of the signal decreases.

TIME DIVISION MULTIPLEXINGG

This technique is used to transmit a signal over a single communication channel, with allotting one slot for each message.

SYNCHRONOUS TDMM

is a technique in which time slot is preassigned to every device.

ASYNCHRONOUS TDMM

It is a technique in which time slots are not fixed as in the case of Synchronous TDM.

SWITCHINGG

is a mechanism by which data/information sent from source towards destination which are not directly connected.

CIRCUIT SWITCHINGG

is a switching technique that establishes a dedicated path between sender and receiver

MESSAGE SWITCHINGG

is a switching technique in which a message is transferred as a complete unit and routed through intermediate nodes at which it is stored and forwarded.

COMPOSITE SIGNAL

is a combination of two or more simple sine waves with different frequency, phase and amplitude.

ANALOG MULTIPLEXING

signals which are analog in nature. The ___ signals are multiplexed according to their frequency (FDM) or wavelength (WDM).

MODULATION

is the process of converting data into electrical signals optimized for transmission.