V. Ответьте на вопрос: What is the main purpose of all computers? контрольное задание №2 (Вариант 3) (“abt”)

I. Перепишите следующие предложения; подчеркните в каждом из них глагол-сказуемое и определите его видо-временную форму и залог. Переведите предложения на русский язык. В разделе (б) обратите внимание на перевод пассивных конструкций.

а) 1. The computer has become an important and powerful tool for collecting, recording and analysing data.

2. The programers are now developing new operating systems.

б) 1. The results of these calculations can be relied upon.

2. The speed data analysis is affected by many factors.

II. Перепишите следующие предложения; подчеркните Participle I и Participle II и установите функцию каждого из них, т.е. укажите, является ли оно определением, обстоятельством или частью глагола-сказуемого. Переведите предложения на русский язык.

1. Modem is a special device alowing your computer to send the information through the telephone lines.

2. CD-RW is a compact disc format that allows repeated recording on a disc.

3. In telecommunication, the bit rate is the number of bits that are transmitted in a second.

4. Diode, a kind of electron tube, has two operating electrodes.

III. Перепишите следующие предложения; подчеркните в каждом из них модальный глагол или его эквивалент. Переведите предложения на русский язык.

1. It is possible to save data to a CD-RW in the same way as one can save it to a floppy disk.

2. You should use tuned radio-frequency receiver in this case.

3. The current value must be as low as possible.

4. Several variable condensers are to be assembled in a single unit.

IV. Прочтите, перепишите и переведите. Computer machines

What is a computer? It is one of the most important developments of this century. Computers are used nowadays for many different kinds of work, e.g. in offices, banks, factories, hospitals, universities.

The electronic system of a computer is very complex. Its electronic brains produce information. It is a complex instrument made up of hundreds of electronic devices, miles of electronic wire.More than 100000 pieces of information can be stored in one machine, and when the operator wants answers, he asks the machine in a special language to process the information and to solve problems. How long did it take you to multiply the large numbers? In one third of a second a computer can multiply two 127-digit numbers. In one whole second, it can add 4000 five-digit numbers; in two seconds it can complete 320 long-division problems. The same machine does the work of thousands of trained mathematicians in any given time, and without the mistakes that human beings usually make. The machine can show its answers on a screen, can print them on paper or store them. It can give any answer or combination of possible answers.

The facts and figures processed by a computer are usually known as data. The data put into a computer, is input data. Input data is processed according to a set of instructions called a program. The results of processing are output data. Very often, the output data is new and useful information. "Information" here means output data useful for making decisions.

But only human beings think, give information to the machines. Machines work for us but do not think for us.

long-division - долгое деление