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  1. Make up sentences:

a machine which performs sequence of oper­ations.

a universal information processing machine,

the most amazing achievement,

is

now widely used in many fields.

Computer

was

a million times faster than humans,

used in chemical plants,

power stations, a data storage system created by man.

built in 1939 by H. H. Aiken.

constructed by the Ukrainian Academician S. O. Lebedev in 1950.

IV. Fill in the blanks with the necessary words:

1. The store ... a numerical quantities and data which are to be processed, (contains, concludes, consists of)

2. The arithmetic unit normally ... the operation of addi­tion, subtraction, multiplication and division and certain other special operations, (performs, carries out, carry)

3. The input and output devices are to supply information and to ... it from the computer, (obtain, receive, get)

4. Computers are a million times ... than humans in per­forming computing operation, (faster, quicker, rapid)

5. The number of electronic computers used in any given field of human activity is sometimes believed to ... the degree of its modernity, (indicate, show, testify)

V. Make up questions and let your fellow-students answer them:

a computer?

a microprocessor?

What do we call

memory?

personal computer?

a program?

a microcomputer?

a heart of a microcomputer,

a tiny processor on a single chip used in microcomputer,

A computer

data storage system created by man.

A microprocessor

is

a computer used for home and per­sonal use.

Memory

a part of a computer which store information.

Personal computer

a set of instructions composed for solving given problems by com­puter.

A microcomputer

a small scale computer using a single microprocessor chip in its architecture.

A keyboard

a part of a computer which allows the user to communicate with the computer.

A program

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