大学计算机基础英语教学 (2).pptx

Chapter 6 Online Connection
introduction
work is the collection of devices that have the ability municate with each basic understanding working is important for anyone managing a server. Not only is it essential for getting the services online and running smoothly, it also gives the insight to diagnose problems.
Network Concept
working may be considered a branch of electrical engineering, munications, computer science, information technology puter engineering, since it relies upon the theoretical and practical application of the related disciplines.
characteristics of work
People can play a CD music from puter while sitting on puter.
They may have puter that does not have a DVD or BluRay (BD) player. In this case, people can place a movie disc (DVD or BD) on puter that has the player, and then view the movie on puter that lacks the player.
People may have puter with a CD/DVD/BD writer or a backup system but the puter(s) does not (don't) have it. In this case, people can burn discs or make backups on puter that has one of these but using data from puter that does not have a disc writer or a backup system.
People can connect a printer (or a scanner, or a fax machine) to puter and let puters of work print (or scan, or fax) to that printer (or scanner, or fax machine).
People can place a disc with pictures on puter and let puters access those pictures.
People can create files and store them in puter, then access those files from the puter(s) connected to it.
History work
Around 1960s-1970s, monly thought of as the predecessor to the and created by the US Department of Defenses Advanced Research Projects Agency (ARPA). The first known fully operational packet-work, the was designed to munication between puter terminals during the early 1960s, at a time puters where far too expensive for widespread usage.
In 1984, Apple Macintosh is launched and the first domain is registered in 1985.
By 1995, the bulk of US traffic is routed through work service prov