ADSL stands for Asymmetric Digital Subscriber Loop, but it means very fast Internet access. Without getting too technical, it runs between 10 and 30 times faster than a traditional dial-up modem. It also is “always on” meaning that there is no need to dial up to connect to the Internet - it’s always there.
ADSL plans from Internet Service Providers are getting cheaper and more reliable all the time, so there’s never been a better time to connect via ADSL.
ADSL is best connected to your network via a router, which will also act as a firewall, preventing some of the nastier aspects of the Internet from your computers. It can also be directly connected to a computer. Connecting via a router will also enable other PCs on your network to access the Internet.