Fundementals of CS

Front

What is asynchronous transmission?

Back

Data is sent in packets which include start and stop bits to recognize the beginning and end of a packet.

Front

What is the purpose of control bits in asynchronous transmission?

Back

Control bits help prevent transmission errors.

Front

Synchronous transmission

Back

data is sent as a continuous stream with no gaps. Lack of start and stop bits means that its faster than asynchronous transmission 

Front

Full Duplex transmission

Back

Data can be sent in both directions simultaneously. So, both devices can send and receive data at the same time 

Front

Simplex

Back

Data can be sent only through one direction, from the transmitter to the receiver. 

Front

Half-Duplex

Back

Data can be sent in both directions, but only one at a time. Meaning you cant send data while someone else is sending data at the same time. 

Front

What is a parity bit?

Back

A parity bit is a bit added to a string of binary code to ensure that the total number of 1-bits in the string is even or odd, used for error detection.

Front

Serial transmission

Back

sends data one bit at a time over a single wire or channel. Can go both directions and can be synchronous or asynchronous transmission

Front

two Advantages of serial Transmission

Back

Can be used over long distances due to few wires with few costs.

Can increase frequency so it's faster than parallel transmission 

Front

Parallel transmission

Back

data is sent a number of bits of data simultaneously over an equal number of wires or channels. Moves more bits simultaneously but is slower than serial.