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5. Choose the ending to each question:

  1. The history of automatic computers is believed to have started with Charles Babbage.

A) was it? B) isn’t it? C) wasn’t it? D) is it?

  1. Charles Babbage, a professor of Cambridge University, invented the first calculating machine in 1812.

A) did it? B) doesn’t it? C) do it? D) didn’t it?

  1. Charles Babbage was born in Devonshire, England in 1792.

A) didn’t he? B) doesn’t he? C) wasn’t he? D) don’t he?

  1. When he went to Cambridge he found that he knew mathematics better than his tutor.

A) didn’t he? B) doesn’t he? C) don’t he? D) did he?

  1. Babbage was the first to insist on the practical application of science and mathematics.

A) wasn’t he? B) doesn’t he? C) didn’t he? D) don’t he?

  1. Babbage constructed a small working model which was demonstrated in 1822.

A) did he? B) doesn’t he? C) do he? D) didn’t he?

  1. The Royal Society supported the project and Babbage was promised a subsidy.

A) don’t he? B) doesn’t he? C) wasn’t he? D) didn’t he?

  1. Babbage devoted the rest of his life to an attempt to develop it.

A) wasn’t he? B) doesn’t he? C) didn’t he? D) don’t he?

  1. He tried to solve a series of problems required the united efforts of two generations of engineers by himself.

A) doesn’t he? B) didn’t he? C) don’t he? D) wasn’t he?

  1. In 1833 he began to think of building a universal digital computer.

A) don’t he? B) doesn’t he? C) didn’t he? D) did he?

  1. Charles Babbage wrote more than eighty books and papers.

A) did he? B) doesn’t he? C) didn’t he? D) don’t he?

  1. After his death his son continued his work and built a part of an arithmetic unit.

A) didn’t he? B) doesn’t he? C) don’t he? D) did he?

6. Ask alternative questions to the following sentences:

  1. Charles Babbage, an English scientist, suggested that a machine for mathematical computations could be made. 2. Charles Babbage, a professor of Cambridge University, could hardly have imagined the situation we find ourselves in today. 3. He went to Cambridge he found that he knew mathematics better than his tutor. 4. He didn't receive a good education, but he taught himself mathematics. 5. Babbage was outstanding among his contemporaries because he was the first to insist on the practical application of science and mathematics. 6. Babbage constructed a small working model which was demonstrated in 1822. 7. Babbage devoted the rest of his life to an attempt to develop the first universal digital computer. 8. Charles Babbage wrote more than eighty books and papers, but he was misunderstood by his contemporaries. 9. He died a disappointed man in 1871 and his son continued his work. 10. Babbage’s son built a part of an arithmetic unit, which printed out its results directly on paper.

Text B

The fastest computers of the world

One of sensations presently is the supercomputer. They can look as a small case, or a curbstone near a table. Business and its requirements for calculations grow, together with it the supercomputer develops also. It differs from the usual computer in additional processors and hard disks. For increasing of working frequency special processors are used.

They are executed on the logic circuits. The style programming is determined by use of group parallel of processors. We can divide given on a portion between different processors. Each of processor carries out a part of work together with others. During process they exchange the data. Modern supercomputers are expansive. You can add processors for acceleration of calculation. For the reference to external memory, the processor should use the circuit of transfer of the information.

The new computers help the petroleum companies to estimate possible reserves of petroleum and gas, by data processing. They can simulate outflow of raw material from tanks. The manufacturers of automobiles can imitate an impact of the prototype about a wall. It allows letting out more reliable and powerful production.

The supercomputers are used at telephone stations. The orders of steel are processed quickly. Consultant, who serves the buyers, enters the applications for a line. They act on processing immediately or periodically. The decisive triumph can consist in penetration of multiprocessor architecture into all personal computers.