1、四級寫作網(wǎng)絡(luò)科技常見話題及范文 四級寫作網(wǎng)絡(luò)科技常見話題及范文 Introduction Inter, puter-based global information system. The Inter is posed of many interconnected puter works. The Inter has made it possible for people all over the world to effectively and inexpensively municate with one another. An individual who has Inter aess

2、can municate directly with anyone else on the Inter, make information available to others, find information provided by others, or sell products with a minimum overhead cost. The Inter has brought new opportunities to government, business, and education. _s use the Inter for internal munication, dis

3、tribution of information, and automated tax processing. In addition to offering goods and services online to customers, businesses use the Inter to interact with other businesses. Many individuals use the Inter for shopping, paying bills, and online banking. Educational institutions use the Inter fo

4、r research and to deliver courses to students at remote sites. The Inters suess arises from its flexibility. Instead of restricting ponent works to a particular manufacturer or particular type, Inter technology allows interconnection of any kind of puter work. No work is too large or too small, too

5、fast or too slow to be interconnected. An organization that has many puters usually owns and operates a private work, called an intra, that connects all the puters within the organization. To provide Inter service, the organization connects its intra to the Inter. Unlike public aess works, intras are restricted to provide security. The restrictions allow puters inside the organization to exchange information but keep the information confidential