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XI. Word forms Choose the appropriate word to complete the sentences. Make sure you use the correct form.

  1. reliably, rely on, reliable, reliability

a. Computers are … machines.

b. If you don’t know the meaning of a computer term, you cannot always … an all-purpose dictionary for the answer.

c. Computers can do mathematical operation quickly and … .

  1. integration, integrate, integrated, integrating

a. Some computer manufacturers have … both input and output devices into one terminal.

b. The success of any computer system depends on the … of all its parts to form a useful whole.

c. … input and output devices into one peripheral has reduced the area needed for a computer installation.

  1. change, changeable, changeably, changing

a. Computer personnel often have to take refresher courses in the … field of computer science.

b. Many… have taken place in the computer industry in the last decade.

c. Memory and primary storage can be used inter-… .

  1. generality, generalize, general, generally

a. …-purpose computers are larger than minicomputers.

b. It is the … consensus of opinion that computers have improved the quality of life.

c. Minicomputers are … cheaper than mainframes.

d. It is often easier to … than to talk about specifics.

XII. Content review a. Match the following words in column A with the statements in column B.

A

B

1. valve

a. a device that controls the flow of electricity

2. vacuum tube

3. transistor

b.one of the two points at which electricity enters or leaves a battery

4. chip

c. a tube to control the flow of electricity

5. electron

d. a flow of electricity

6. electrode

e. a small piece of matter in an atom

7. current

f. electronic valve

g. a silicon piece used to store and process information in computers

b. Use the information in the text to complete the following table.

Time

Event

the beginning of the 20th century

A computer Colossus using … was built.

1946

1948

The invention of the integrated circuit

XIII. Translate paragraphs 4 and 5 into Russian after checking the unknown words in the dictionary. Unit 3 Types of Computers

Section A Comparisons

Comparing two things

Comparing tree or more things

X is … -er than Y

X is the … -est

X is more … than Y

X is the most …

X is less than Y

X is the least …

X isn’t as … as Y

A. Better and best 1. Compare

  • an abacus with a pocket calculator

  • your car with your teacher’s car

  • two different ways of investing money