Unit 5. Communication Technologies » Стр.39 (1)

Complete the text with the correct words derived from the words in brackets. It is impossible to live without computers nowadays. Our everyday needs are connected with them and they are everywhere. If we compare the first computer and modern ones, we can speak about a digital revolution. The first computers were very big, they needed a room or even a whole building to be placed. They were not very fast and could be compared with calculators. Today they can perform lots of processes in a minute and are used by scientists. They can do various and difficult operations at the same time. Teachers and students can use them in education. It is impossible not to know how to use them.