Computers today. Гурьянова В.И. - 31 стр.

pies. Some viruses spread by infecting programs stored on these disks, while
others installed themselves into the disk boot sector, ensuring that they would be
run when the user booted the computer from the disk.
      Traditional computer viruses emerged in the 1980s. Since the mid-1990s,
macro viruses have become common. Most of these viruses are written in the
scripting languages for Microsoft programs such as Word and Excel. These vi-
ruses spread in Microsoft Office by infecting documents and spreadsheets. Since
Word and Excel were also available for Mac OS, most of these viruses were
able to spread on Macintosh computers as well. Most of these viruses did not
have the ability to send infected e-mail. Those viruses which did spread through
e-mail took advantage of the Microsoft Outlook COM interface.
      A virus may also send a web address link as an instant message to all the
contacts on an infected machine. If the recipient, thinking the link is from a
friend (a trusted source) follows the link to the website, the virus at the site may
be able to infect this new computer and continue propagating.

                                        Text 12
      1. Read the text below, consider it as a whole and make up its plan
according to the overall structure of the text.
      2. Read the text more carefully and choose one answer (a, b) for
questions I–VIII.
     I.Who is personally responsible for the running of the Internet?
      a. Different countries claim responsibility for the Internet.
      b. No person is actually responsible for the upkeep and running the Net.
    II.What does the remote server provide to the users?
      a. Distant server machine serves the user’s machine with collections of
information for the computer.
      b. Remote server machine provides new types of PC and hardware to the
user’s local client machine.

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