Identification of words

Match the words in the left-hand column with their equiva­lents in the right-hand column:

Taking Computer/or Granted

2. Useful expressions

Invent sentences using the following expressions and words:

Share information; communicate over phone lines; plug into; center ciround the problem; direct connections; with the help of; refer to; is located at; put down; indispensable tool(s) for; joint venture; be responsible for; locate document(s); find information over the Internet.

3. Reading comprehension

Read the text, try to understand the topic, look for the logi­cal sequence of the items and put them in the proper order. The first item is in the right position.

1. Search engines as Altavista and Hotbot claim that they have indexed the contents of tens of millions of web pages. How can they do this?

2. Resource discovery is perhaps the most exciting application of web robots. It means that rather than relying solely on browsing, a Web user can combine browsing and searching to locate information.

3. A Web robot is a program that traverses the Web's hypertext structure by retrieving a document, and recursively retriev­ing all documents that are referenced. Such programs are

UNIT 7

sometimes called «spiders», «web anderers», or «web worms».

4. Even if the database doesn't contain the exact item you want to retrieve, it is likely to contain references to related pages, which in turn may reference the target item.

5. Web robots can be used for statistical analysis (e.g., to count the number of Web servers), for maintenance (e.g., to detect deal links), and for resource discovery (e.g., summarize large segments of the web).

4. Each sentence contains a word that is wrong. Correct these mistakes and than refer to the text

1. At the end of the 20th century an explosion of indirect con­nections to the Internet occurred.

2. At the beginning research was the main goal of the Internet.

3. A lot of people connected to the Internet and the large mi­nority were home connections.

4. Computers are dispensable tools for computation, typing, and communications.

5. Engineers can share results between the geographically dis­persed team members.

6. People are irresponsible for the documents they author and make available publicity on the Web.

7. If you are willing to find unnecessary information over the Internet you must use browser.

8. A Web server is a program that, before receipt of a request, sends the document requested back.

9. Every browser has the guilt-in ability to understand the HTTP.

10. Search Engines help you to dislocate documents.

5. Fill the gaps with the appropriate word. Then refer to the text.

1. External modem is outside your computer and must be .... into it.

Т9Шя.ср™ш$?гЛ9^ш^п*^ес1

2. Modem .... digital data back and forth for use with analog phone line.

3. A .... is either a workstation or a mainframe because it han­dles far greater loads than ordinary desktop.

4. With the help of .... you can send or receive electronic mes­sages from anyone on the Internet.

5. The .... of computation and communications is making es­sential changes to business activities.

6........ Is used to find the necessary information on the Internet.

7........ combines hypertext and multimedia.

6. Give the explanation to the following acronyms and abbrev­
iations (p. 223 will help you):

Date: 2015-12-11; view: 1052