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More Power!
Perhaps Freud was right: The quest for bigger, better, and faster says interesting things about the person engaged in said pursuit. There are real benefits for a bigger, better, faster connection to the Internet. The Internet, with rare exception, has become increasingly graphic intensive. Although websites with a lot of graphics might look pretty, they can take a while to download especially if you don't have a robust connection.The shift toward graphic-intensive websites drove the development of new transmission technologies. These new technologies were designed specifically for carrying data traffic. After emerging, they quickly surpassed the performance level of dial-up technologies. These alternatives to dial-up service are known generically as broadband connections. Unlike dial-up service, which requires you to establish a connection when you want to go online, a dedicated connection is always on and available. In that regards it functions precisely as a local-area network (LAN).The two main types of dedicated connectivity available to residential Internet users are some form of DSL and cable. Both afford much faster transmission rates than dial-up can, although your actual speed might vary.
What's the Catch?
Dedicated connections save you the time to connect to the network and run faster than dial-ups…so what's the catch? Simple! The strength of dedicated connections is also their weakness. If the connection is always on TCP/IP is running whenever you turn your computer on. You already know that TCP/IP communicates bidirectionally. It also doesn't really need much, if any, input from you to function properly.File Transfer Protocol (FTP). FTP is a wonderful little tool, but it requires your specific input to work. You log on to a computer through a TCP/IP network, start the FTP session, and use that protocol's features to send or receive files. That's fine, but FTP has a sinister sibling. That sibling protocol is the Trivial File Transfer Protocol (TFTP). Maybe it wasn't intended to be sinister, but it gets misused more often than properly used.With TFTP, you don't have to log on to the other computer to start the file transfer session. As long as that computer is up, running, and using TCP/IP to communicate, a TFTP session can be initiated without any other intervention. As a result of that "feature," TFTP has become one of the tools that virus writers exploit. Using TFTP, a virus can be put on your computer without you even knowing about it. That's just one more reason to configure a good firewall and an even better reason to be particularly cautious about always-on connections.Potential security threats aside, dedicated broadband connections can provide a satisfying Internet experience. None of the dedicated broadband technologies has yet to put the final nail in the coffin for dial-up Internet access. The reasons are varied but easy enough to understand. Keep reading and I'll fill you in on the story with dial-up connections.
