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Synchronous and Asynchronous Transmission
Synchronous communication requires that the transmitting and receiving devices have synchronized clocks running at the same rate to allow data to flow continuously in blocks or frames in a full duplex mode, making it efficient and reliable for transferring large amounts of data, as is used for chat rooms, video calls, and phone conversations. In asynchronous transmission, data is sent intermittently without an external clock, flowing in a half duplex mode one byte at a time, generally with 8 data bits plus a start and stop bit, and is used for letters, emails, television, and radio.
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Synchronous and Asynchronous Transmission
- 2. Synchronous In Synchronousthe transmission of data is sent in a continuous stream at a constant rate. Synchronous communication requires that the clocks in the transmitting and receiving devices are synchronized running at the same rate. Data flows in a full duplex mode in the form of blocks or frames
- 3. Synchronous Transmissionis efficient, reliable and is used for transferring a large amount of data
- 4. Example Chat Rooms Video Conferencing/Calling Telephonic conversations
- 5. Asynchronous In asynchronousthe transmission of data is generally without the use of an external clock signal, where data can be transmitted intermittently rather than in a steady stream. Data flows in a half duplex mode, 1 byte or a character at a time. It transmits the data in a continuous stream of bytes.
- 6. In general,the size of a character sent is 8 bits to which a parity bit is added i.e. a start and a stop bit that gives the total of 10 bits
- 7. Example Letters Emails Televisions Radios