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firewall

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Firewall


In computing, security system built to block access to a particular computer or network while still allowing some types of data to flow in and out onto the Internet. The firewall is often the first line of defence against hackers.

A firewall allows a company's employees to access sites on the World Wide Web or exchange e-mail while at the same time preventing hackers from gaining access to the company's data.

© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.


 
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Nepal Flag
Nepal Flag Initially the sun and moon had human faces, but they were removed when the flag was updated in 1962. The flag is said to express the hope that Nepal will endure as long as the sun and the moon. The blue border symbolizes peace. Effective date: 16 December 1962. >>

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