1. The fourth generation of computers is associated with the use of large scale integrated circuits and microprocessors.
2. Minicomputers were the first computers that included the operating systems, which automated a number of computers tasks previously performed by humans.
3. Input and output devices of the computer are known as software.
IV. .
1. What were the first generation computers based on?
a) on vacuum tube technology;
b) on integrated circuits.
2. What is the development of smaller, faster and more efficient computers associated with?
a) with transistors;
b) with large scale integration.
V. . .
1. Those room sized computers, such as the UNIVAC 1, were based on electromagnetic devices and vacuum tube technology.
a) , UNIVAC 1, , .
b) , UNIVAC 1, , .
2. These smaller computers were known as minicomputers and were the first to incorporate operating systems.
a) .
b) , .
3. A computer system is actually an integrated set of computing components.
a) , .
b) , , .
VI. 3 5 .
5
I. , . .
Example: These samples ( may / have to/ is to) be chosen deliberately. ( ) .
1. A typical e-mail address (must/ might/ have to) be [email protected].
2. Two stations far enough apart (can/ should/ might) receive different messages transmitted on the same frequency.
3. The engineers (may/ mustnt/ might not) work with faulty devices.
4. She (will be able to/ had better/ is able to) explain the properties of this group of alloys now.
II. , , Participle I, Participle II Gerund, , ( ). .
Example: There are several ways of obtaining this substance. (Gerund) .
1. There also exists an idea to use laser for solving the problem of controlled thermonuclear reaction.
2. While working at a new transmitter for deaf people Bell invented a telephone.
3. The results obtained are published in a monthly magazine.
4. Satellite links are used regularly in long-distance callings.
