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Complete the sentences using words in bold. Use two to five words





 

1. In 1983 all sites on the Internet had only numbers for their addresses, and these numbers were long and hard to remember.

which The ………………………………. the internet had for their addresses were long and hard to remember.

2. There are 2 broad categories of Internet access: dedicated and dial-up.

falls Internet ………………………….. broad categories: dedicated and dial-up.

3. With dedicated access a subscriber’s computer remains directly connected to the Internet at all times by a permanent, physical connection.

with Dedicated access …………………………. a direct connection to the Internet at all times by a permanent, physical connection.

4. A digital subscriber line and a cable modem both use existing wiring to lower Internet access cost.

makes Not only cable modems but also a digital subscriber line …………….. existing cables to decrease cost.

5. A DSL sends data across the same wires that telephone service uses, and cable modems use the same wiring that cable television uses.

those A DSL and cable modems send data across existing wires; the former uses the telephone lines …………………..of cable television.

6. Using the separate frequencies or channels sending data over the wires prevents the electronic devices from mixing up with other signals on the wires.

with The electronic devices that are used to send data over the wires employ separate frequencies or channels that ………………………. signals on the wires.

7. Using the separate frequencies or channels sending data over the wires prevents the electronic devices from mixing up with other signals on the wires.

employing In spite of using the same wiring the devises do not interfere with other signals on the wires ………………… separate frequencies or channels

7. Throughout the 1980s, the Internet grew with a good deal of support by the U.S. government.

up Throughout the 1980s the U.S. government ………………………….. of the Internet a lot.

8. The U.S. government support led to public and commercial implementations of the many languages developed for the use over the Internet.

resulted The U.S. government ……………………. public and commercial implementations of the many languages developed for the use over the Internet

result Public and commercial implementations of the many languages developed for use over the Internet ………………….the U.S. government support.

resulted Public and commercial implementations of the many languages developed for the use over the …………………………… U.S. government support.


21. You are going to read the article about the differences between the Internet and WWW. Seven sentences have been removed from it. Choose from the sentences A-H the one which fits each gap (1-7). There’s one extra sentence you do not need to use.

A. Aside from the Web, the Internet also encompasses over 100 other protocols or languages for running services.

B. Different services have different languages or protocols.

C. Packets take various routes through the network, and then reassemble themselves at the destination address.

D. The Internet encompasses the Web, but it also encompasses other online protocols in addition to the Web.

E. The Internet in its early days was far from user friendly.

F. The way we communicate, work, learn, shop, and play have all been significantly impacted by both.

G. This led to public and commercial implementations of the many languages developed for use over the Internet.

H. Though he first conceptualized and proposed this project in 1980, the realization of it came some ten years later.

Are the Internet and the World Wide Web the Same Thing?

The Internet and the World Wide Web (WWW or Web) are not the same things, though they are related. [1] In basic terms, the difference is that the former is a massive system of connected international networks, while the latter is one type of service available within that network.

The Internet began as a U.S. Defense project in 1973. The Advanced Research Projects Agency (ARPA) believed that a redundant, non-centralized, international network of computers could be vital for passing information along in the case of a nuclear disaster or other cataclysmic event. ARPA developed “packet technology” or the ability to send data across the network by breaking it up into discreet data packets, addressed to a unique machine on the network. [2]

The common language used to perform the task of sending data packets over the Internet is referred to as a protocol. [3] This is another difference: the Internet supports many protocols, while the WWW is just one protocol of the many supported.

Throughout the 1980s, the Internet grew with a good deal of support by the U.S. government. [4] But it wasn’t until 1990 that the Internet and the World Wide Web began to be spoken in the same breath, though its conception came much earlier.

Sir Tim Berners-Lee, a famous pioneer of computer science, was reportedly frustrated when he had to access several different machines to gather scheduling data, phone numbers and other materials he needed on a daily basis. He envisioned a hypertext protocol that could run on readily available machines on the Internet, which would provide easy access to materials for researchers. [5] Today, the creating of the Web is attributed to Tim Berners-Lee, and the Internet and the World Wide Web are terms that have been used interchangeably ever since, although incorrectly.

[6] Some of these include the Post Office Protocol (POP) email system; User Network (USENET) newsgroups; instant messaging (IM); telnet; file transfer protocol (FTP); and Internet Relay Chat (IRC). Though most people won’t balk at a fellow-surfer using the two terms interchangeably, it is good to know the difference.

The one thing the Internet and the World Wide Web have in common is that they have revolutionized the world. [7] Perhaps most amazing is that they have existed for such a short period of time, yet are intrinsically embedded so deeply in our society, we can scarcely imagine a time without them. Thanks to both, life has become easier in many ways, people are interconnected like never before, and creative opportunities are virtually limitless.

Date: 2016-05-14; view: 956; Нарушение авторских прав; Помощь в написании работы --> СЮДА...



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