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 | A Broadband connection (ADSL) is one of the simplest ways to gain a high bandwidth connection to external networks such as the Internet using only existing phone lines. It generally converts to a wired or wireless Ethernet LAN. |
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 | A LAN is the backbone of any networked office. Ethernet at 10 or 100 Mbit/s is almost universally used, and 1000 Mbit/s is common, whether via copper or optical fibre. Routers route the data between Ethernet card equipped computers, and switches connect them together. |
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