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  1. Read and translate the text: what is the computer?

A computer is a machine in many ways similar to other machines. It runs on electricity. It contains a number of parts that work together. It’s designed to perform certain tasks.

So far we could just as easily be describing a hair dryer, a power drill, or an electric lawnmower as a computer. What is it that makes the computer special?

Several things. First, computers are fast. Not sixty-miles-per-hour fast. Blink-of-an-eye fast. Think about this: a “slow” computer can add hundreds of thousands of numbers per second. In fact, when computer users discuss computer speed, they often don’t even use the word second. They talk in terms of microseconds or nanoseconds. How small a unit of time do this term refer to? Well – a second contains one million microseconds or one billion nanoseconds.

Besides being incredibly fast, computers are also extremely reliable. The average person using a pencil and paper to do arithmetic might make one or more mistakes in an hour. After several hours of work, the person would get tired and probably make more mistakes. By comparison, a computer can do arithmetic more quickly and more accurately, and it can continue working for hours or days at a time. Long after any human would have fallen asleep at his desk, the computer would still be calculating along – without so much as a yawn!

A third feature of computers that makes them unique machines is that they can receive, store, and use information and instructions that you give them. What other machines can you think of that are able to do all that? (Careful, now – don’t include machines containing microprocessors!) Can an ordinary mechanical typewriter, for example, remember tomorrow the letter you type today? A computer can – and, at your command, it can reproduce that same letter ten times, addressed to ten different people!

Notes:

certain [‘sə:tn] звичайний

lawnmower [lo:nməuə] газонокосарка

to add [æd] додавати

to refer to [ri’fə:] відноситися

incredibly [inkredəbli] неймовірно

yawn [jo:n] позіхання

so far we could just as easily be describing … не так давно ми легко могли описати ...

per-hour за годину

blink-of-an-eye миттєвий

unit of time одиниця часу, відрізок часу

  1. Translate into Ukrainian:

similar; runs on electricity; contains; perform; power drill, electric lawnmower; blink-of-an-eye; speed; unit of time; besides; extremely; average person; by comparison; feature; unique; ordinary; typewriter; reproduce.

  1. Find in the text English equivalents for the following:

додавати, без позіхань, працюють разом, не так давно, за годину, користувачі, неймовірно швидкий, потужний, швидкість, ймовірно, рахувати, отримувати, зберігати, використовувати інформацію, команда.

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