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Glossary of Computer and Internet Terms
A glossary of computer and Internet terms with definitions that are easy to understand.
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A Firewall is used to protect a client machine or networked server from any unauthorised access. A firewall can be either software of hardware-based and routers are a hardware device that has an inbuilt firewall. Monitoring and restricting software programs are also classed as firewalls as they only allow particular messages from the Internet enter the network.