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networking Grade 10 note Engish
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Data Communication · Transmitting data and information is called data communication. · Data transmission can be carried out between two or more computers or devices such as printers. · Data transmission needs a connection between a sender and a receiver. · Creating such a connection is called networking. Basic components required for data communication The following are the basic components that are needed for data communication. • Sender / Source – the person or the object which sends data • Medium – medium used to transmit data (telephone wires / wireless) • Receiver/ destination – the person or the object which receives data Data Transmission Modes There are several modes of data transmission between sender and receiver. 1 Simplex Mode · Data is transmitted from the sender to the receiver only. · Getting print outs, examples : watching television listening to