2. Read and understand the text. More about computers
There are two different types of electronic computers: digital computers and analog computers. The digital computers count. They can add, subtract, multiply, divide, match, collate and print information. The analog computers measure. They are able to do complicated problems. Electronic computers calculate at nearly the speed of light. Electronic computers were invented to give high-speed answers to large and complicated problems that once took months for man to do. Modern computers can play chess, compose music and even write plays. At limes they seem almost human. But the truth is that no machine can duplicate the human brain. Both the computer's energy and initiative come from a source outside itself. Computers cannot think for themselves. They must be told what to do down to the last detail. On the one hand a computer will never have a truly original or creative thought. But on the other a computer will never day-dream when it is supposed to be concentrating on its work. The circuits, switches and electrical impulses that travel through them function in ways that are so similar to our brain and nervous system that many people call computers “electronic brain". Computers must be told what to do all times and every single action that the computer takes is the result of an instruction.
3. Answer the following questions:
What are two different types of electronic computers?
The digital computers count, don’t they?
Can the analog computers measure?
How do electronic computers calculate?
Modern computers can play chess, compose music and even write plays, can not they?
Can computers think for themselves?
What do we call “electronic brain"?
4. Work in pairs:
Ask your group mate about the:
“electronic brain"
electrical impulses
digital computers and analog computers
high-speed answers
5. Ask 4 types of the questions to the sentences:
They are able to do complicated problems.
The computer's energy and initiative come from a source itself.
6. Computer Quiz
What computer system makes it possible to send letters very quickly?
What system allows computer users around the world to send and to obtain information?
What programs provide colorful pictures and sound?
What is the name of a computer-created “world”, which seems almost completely real?
What is a special term, which means “to obtain stored information from a computer's memory”?
What do we call a disk on which a large quantity of information can be stored?
What do you call a sudden, unexpected computer failure?
What is the term for the electrical or electronic components of a computer?
What do we call a large collection of data that is stored in a computer system?
What is the term for a set on instructions secretly put into a computer that destroys the information stored in it and stops it from working normally?
Where on the Internet can you look for about products and services offered by a company or organization?
What is WWW? What store of information can you easily put into your pocket?
What do we call a set of computer programs to control the operation of a computer ?
What kind of computer can you use on the plane?
Unit 5.
ELECTRONICS
