Preface
With the Internet much of a buzzword recently, and otherwise serious people joyriding along the \Informational Superhighway," computer networking seems to be moving toward the status of TV sets and microwave ovens. The Internet is recently getting an unusually high media coverage, and social science majors are descending on Usenet newsgroups to conduct researches on the \Internet Culture." Carrier companies are working to introduce new transmission techniques like ATM that o er many times the bandwidth the average network link of today has.
Of course, networking has been around for a long time. Connecting computers to form local area networks has been common practice even at small installations, and so have been long-haul links using public telephone lines. A rapidly growing conglomerate of world-wide networks has, however, made joining the global village a viable option even for small non-prot organizations of private computer users. Setting up an Internet host with mail and news capabilities o ering dial-up access has become a ordable, and the advent of ISDN will doubtlessly accelerate this trend.
Talking of computer networks quite frequently means talking about UNIX. Of course, UNIX is neither the only operating system with network capabilities, nor will it remain a front-runner forever, but it has been in the networking business for a long time, and will surely continue to do so for some time to come.
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