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6.17 Translate the sentences paying attention to Participle I and Participial Constructions.

1. A computer is a machine per­forming reasonable operations on the information. 2.In a digital system numbers or digits are used, the operations being performed directly on digits. 3. There are many types of calculating devices, the abacus being one of the simplest. 4. Performing complex calcu­lations a computer does the work of a great number of people. 5. A computer is the "heart" of an electronic control system, other parts of the equipment being auxiliary. 6.Computers are divided into two classes, analogue and digital, the basic distinction being the way in which numbers are represented inside the machine 7.Being highly accurate electronic computers are of great help to the de­signers. 8.Modern general-purpose-computers operating at super-high speeds provide solutions of a great number of complex prob­lems.

6.18 Translate the sentences, mind the Gerund.

1.A computer must be capable of storing data to be used in later calculations. 2.Before starting calculations the machine must have the necessary data. 3.The arithmetic unit solves different problems by performing the sequence of Instructions. 4.The computer can make translations from one language into another by transforming words into arithmetic symbols and vice versa. 5.Before starting one’s higher education one should search for one’s calling. 6.His misleading does not satisfy me.

Text 6C1

Read the text and make up a dialogue.

the binary and decimal systems

Modern electronic digital computers perform their calculations in the binary system. The binary system is called so in contrast to the decimal system and it consists only of two digits 0 and 1. In the decimal system the place of a digit in a number tells the value of the digit. When we write 275 we mean 275=2x100 + 7x10 + 5x1. In the binary system the decimal digits are ex­pressed by the combinations of 0 and 1.

Some typical binary numbers and their decimal equivalents are respectively:

a) binary - 1, 10, 100, 1000, 10000, 10100; b) decimal - 1, 2, 4, 8, 16, 20. The binary system was chosen as a code for digital computers because its two digits can easily be represented in a machine. They can be represented by a switch which is open for expressing one, or closed for zero, or by a pulse which is present or absent (pulse - for one, no-pulse - for zero) or by polarization of magnetic cores etc.

The representation of decimal digits is naturally more complicated. The word "bit" comes from the combination "binary digit", for which tile scientists have taken the first two letters from, the word "binary" and the last letter from the word "digit". This word means the smallest piece of information.

Make up Dialogue 6.19 as follows

AAAA Framework:

Answer the first question Add something

Ask a similar question Appraise the answer.

Binary System

Answer the first question:

  • what can you say about the binary system?

  • The binary system is called so … Add something: Modern electronic digital computers perform…

Ask a similar question:

  • What is the dependence between a digit and the place of the digit in a number in the decimal system?

  • In the decimal system the place of a digit… When we write 3458 we mean…

Appraise the answer: Oh, as I see you understand pretty well the …

  • Why was the binary system chosen as a code for digital computers?

Your Turn to Continue, Please!

  • What is a bit?

  • where does its name come from?

Text 6C2

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