Data Transmission

Serial Transmission

Bits sent sequentially down same channel

Serial transmission positives

Less wires - Less cost

No synchronization issues - Good for long distance

Serial Transmission negatives

Slower transmission speed

Serial Transmission typical applications

Transmission to another computer or external device.

Medium-Long Distances

Universal Serial Bus(USB)

Parallel Data Transmission

Multiple bits sent simultaneously down different wires in same cable.

Data synchronized via clock

Parallel Data Transmission positives

Multiple bits sent - faster transmission

Parallel Data Transmission negatives

More wires - more expensive

synchronization errors over long distances.

Parallel Data Transmission typical applications

Fast Transmission in computer system

Short Distances

Integrated Circuits(IC), Buses.

Asynchronous Data Transmission

Data is transmitted between two devices that do not share a common clock signal. Uses start and stop bits

Synchronous data transmission

Data is transmitted where the pulse of the clock of the sending and receiving device are in time with each other. The devices may share a common clock.

Baud Rate

Speed which data CAN be transmitted

Bit Rate

Speed of current transmission

Bandwidth

Amount of data that can be transmitted along a communication channel