There are two different possible way to set up synchronization for a synchronous transmission. First way is set up a separate clock line between transmitters and receiver but this only works for short range transmission since in long range transmissions the clock pulses can receive timing errors. The better choice for long distance is to embed the clocking information in the data signal. You can do this with Manchester or differential Manchester encoding for digital signals.
Synchronous
In asynchronous transmission , the receiver and the transmitter each use their own clock signals so its not possible to know when a word starts and stops. while in synchronous , the receiver and the transmission have common clock signals.
Synchronous: The synchronous format, receiver or transmitters are synchronized. A block of information is transmitted along with the synchronization information. This is clk oriented transmission format. This information is specially used for high speed transmission. Usually in this synchronous system one or two SYNC character are used for data synchronous data system. Transmission device send data continuously to receiving device. If the data is not ready this system continuously synchronous data until the data is unviable. Asynchronous: It is character oriented. Each character comes with the information of start and stop. In this system 1 for mark, 0 for space. When data are being transmitted a receiver stay at high at logic 1. This is specially used in low speed transmission.
synchronous serial transmission
In computer science, especially parallel computing, synchronization means the coordination of simultaneous threads or processes to complete a task in order to get correct runtime order and avoid unexpected race conditions. There are many types of synchronization: * barrier * lock/semaphore * non-blocking synchronization * synchronous communication operations advantages of synchronous communications are * no need of start and stop bits * higher data rates possible * the actual data length need not be fixed
Synchronous and Asynchronous data transfer are two methods of sending data over a phone line. In synchronous data transmission, data is sent via a bit-stream, which sends a group of characters in a single stream In order to do this, modems gather groups of characters into a buffer, where they are prepared to be sent as such a stream. In order for the stream to be sent, synchronous modems must be in perfect synchronization with each other. They accomplish this by sending special characters, called synchronization, or syn, characters. When the clocks of each modem are in synchronization, the data stream is sent. In asynchronous transmission, data is coded into a series of pulses, including a start bit and a stop bit. A start bit is sent by the sending modem to inform the receiving modem that a character is to be sent. The character is then sent, followed by a stop bit designating that the transfer of that bit is complete.
The act of synchronizing; concurrence of events in respect to time.
Synchronous motors are those that run only at Synchronous speed ie.. constant speed.
synchronous transmission. In a asynchronous transmission, data is sent as individual data bytes
using chuck norris' beard and awesomness
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Advantage of Analog Communication: 1)Transmission bandwidth required is less. 2)No need of synchronization.