Fichas
Transmitting data
Fichas del conjunto (8)
- 1Transmitting DataThe direction of the data transmission (i.e. in one direction only or both directions).
The method of transmission (how many bits are sent at the same time).
The method of synchronisation between the two devices. - 2Simplex Data TransmissionSimplex data transmission is in one direction only. e.g. printers
- 3Half-Duplex Data TransmissionHalf-duplex transmission is in both directions but not at the same time.
e.g. walkie-talkie - 4Full Duplex Data TransmissionFull duplex data transmission is in both directions simultaneously. e.g. Skype
- 5Asynchronous Data TransmissionAsynchronous Data Transmission refers to data being transmitted in an agreed bit pattern.
Data bits (1s and 0s) are grouped together and sent with control bits. - 6Synchronous Data TransmissionSynchronous data transmission is a continuous stream of data.
The data is accompanied by timing signals generated by an internal clock. This ensures that the sender and receiver are synchronised with each other.
The receiver counts how many bits (1s and 0s) were sent and then reassembles them into bytes of data.
The timing must be very accurate here since there are no control bits sent in this type of data transmission. - 7Serial Data TransmissionData is sent one bit at a time over a single wire/channel.
Bits are sent one after the other in a single stream.
Works well over long distances.
This type of data transmission is slow.
An example of its use is sending data from a CPU and the memory. - 8Parallel Data TransmissionSeveral bits of data (usually a byte) are sent down several wires or channels at the same time.
Works over short distances.
Over long distances, the bits can be become skewed - this means they will no longer be synchronised.
A faster method of data transmission.
An example of its use is sending data from a computer to a modem for transmission over a telephone line.
Información
- Descripción
- Fichas sobre Transmitting data, creado por 12.mills el 16/10/2015.
- Creado por
- 12.mills
- Visitas
- 0
- Valoración