Overview
This hardware allows the user to connect to a broadband connection and allow the use of more than one computer to access the internet simultaneously. Routers are necessary when inter-network communication is required. Please see the individual information for features included and for supported connections.

• Port Forwarding
• Broadband ADSL vs Cable
• Home Networking
• VoIP Communications

Overview
A firewall is a security device which is configured to permit, deny or proxy data connections set and configured by the organization's security policy. Firewalls can either be hardware and/or software based. Proper configuration of firewalls demands skill from the firewall administrator. It requires considerable understanding of network protocols and of computer security.

• Wi-Fi
• Wi-Fi Security
• User Account Control in Vista

Overview
Acronym for modulator/de-modulator. A hardware device that allows a computer to transmit and receive information over telephone lines. A modem converts digital data from computers into analog data that can be transmitted over the telephone lines. Traditional modems can carry data at speeds of up to 56Kbps on a normal "PSTN" telephone line, or by using ISDN you can connect at 64Kbps or 128Kpbs when using dual channel bonding, where as ADSL gives you a speed in the order of Megabytes.

• Broadband ADSL vs Cable
• Wi-Fi
• VoIP Communications