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In synchronous communications, the stream of data to be transferred is encoded as fluctuating voltage levels in one wire (the 'DATA'), and a periodic pulse of voltage on a separate wire (called the "CLOCK" or "STROBE") which tells the receiver "the current DATA bit is 'valid' at this moment in time".
Source-Synchronous clocking refers to a technique used for timing symbols on a digital interface. Specifically, it refers to the technique of having the transmitting device send a clock signal along with the data signals.
Asynchronous communication at the data link layer or higher protocol layers is known as statistical multiplexing, for example Asynchronous Transfer Mode (ATM). In this case, the asynchronously transferred blocks are called data packets, for example ATM cells.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 February 2025. Transmission of information For other uses, see Communication (disambiguation). "Communicate" redirects here. For other uses, see Communicate (disambiguation). There are many forms of communication, including human linguistic communication using sounds, sign language, and writing as ...
Many serial communication systems were originally designed to transfer data over relatively large distances through some sort of data cable.. Practically all long-distance communication transmits data one bit at a time, rather than in parallel, because it reduces the cost of the cable.
An optical communication system is any form of communications system that uses light as the transmission medium. Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.
Examples of communications channels include: A connection between initiating and terminating communication endpoints of a telecommunication circuit.; A single path provided by a transmission medium via either
Real-time communication (RTC) is a category of software protocols and communication hardware media that gives real-time guarantees, which is necessary to support real-time guarantees of real-time computing. [1]