9.3 Software
Communication software enables a computer to exchange data, files and commands with another computer.
Network software is software that has been modified to run on a network so that it can be shared.
Networks need an operating system (NOS) to allow sharing of files and resources.

True or False? Write out the true sentences and change the false sentences so that they are true.
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Writing text when
the computers are connected is faster than sending a prepared file. |
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If text to be
communicated is written on a wordprocessor first, it reduces the cost. |
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Electronic mail is
the sending and receiving of electronic messages. |
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Electronic mail
can be used on a local area network. |
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Electronic mail
can only be sent to one user. |
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When receiving
electronic mail a person must be using their computer. |
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The procedures to logon
and logoff depend on the communication software. |
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Bulletin boards
provide a means by which users can exchange messages. |
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The action of
transferring a file from your computer to another computer is called
downloading. |
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Network software
and a network operating system are used on WANs. |