Articles Index

router

What is a router? In computer networking, routers join two networks together at a given protocol layer. A wired or wireless router is typically a small piece of computer hardware.

network address

Network addresses give computers unique identities they can use to communicate with each other. Specifically, IP addresses and MAC addresses are used on most home and business networks.

firewall

A network firewall guards a computer network against unauthorized incoming or outgoing access. Network firewalls may be hardware devices, software programs, or a combination of the two.