Hackers who find their way into their systems and read confidential information. They are even more worried about viruses

Exercise 6.

Everybody seems to be having problems with computers these days. Governments and big companies are worried about hackers who find their way into their systems and read confidential information. They are even more worried about viruses which can destroy all their programs.

It's not much better for ordinary people either – I bought a program myself last month and I suppose it must have had a bug of some kind. My computer suddenly crashed and I lost two hours' week.

Exercise 7.

The World wide web is made up of millions of sites created by anybody from multimedia corporations to ordinary people like you and me. On the web you can read online newspapers and magazines; you can watch videos, download music or buy anything from a CD to a holiday. You can go into a chat room and talk to other people all over the world or join a newsgroup for more serious debate. If you are really ambitious you might even like to try creating your own web page. Then you can show your holiday pictures to the whole world!