5.3 Data transfer
Serial and parallel
transmission are the two ways data is transferred between computers. Serial
transmits the data one bit at a time using only one communication line eg a
mouse, telephone. It is good over long distances. Parallel transmits a number
of data bits(byte) simultaneously using separate lines eg printer, disk drives.
It is good over short distances.
The data transfer
rate is measured in bits per second(bps). An interface is a device that
connects the computer to its peripherals eg printers, monitors. A user
interface is part of the operating system that allows a person to communicate
with the computer eg Windows is a graphical user interface(GUI)
Protocol is the set
of rules that the computers must follow if data is to be transferred
successfully.
Write
out the sentence and fill in the missing word
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Transmission of data one bit at a time using only one communication line is ????? |
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Transmission of a number of data bits (byte) simultaneously using separate lines is ????? |
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The time taken to transfer data between primary storage and secondary storage is ????? |
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Abbreviation for bytes per second is ????? |
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Abbreviation for millions of bytes per second is ????? |
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A device that allows computers and peripherals to be connected is ????? |
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Part of the operating system that allows communication between the operator and the operating system is ????? |
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Abbreviation for graphical user interface is ????? |
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Abbreviation for character user interface is ????? |
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A set of rules for transferring data between computer devices is ????? |