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1. What is a computer?
2. What is it capable to do?
3. The basic job of a computer is the processing of information, isn’t it?
4. How do we call a program, which tells the computer what to do?
5. Computers have many remarkable powers, don’t they?
6. What can computer solve?
7. Can computers do anything without a person?

ТЕКСТ
A computer is a machine with an intricate network of electronic circuits that operate switches or magnetize tiny metal cores. The switches, like the cores, are capable of being in one of two possible states, that is, on or off; magnetized.

The machine is capable of storing and manipulating numbers, letters and characters.

The basic idea of a computer is that we can make the machine do what we want by inputting signals that turn certain switches on and turn others off, or that magnetize or do not magnetize the cores.

The basic job of computers is the processing of information. For this reason, computers can be defined as devices which accept information in the from of instructions called a program and characters called data performming mathematical and logical operations on the information, and then supply results of these operations.

The program or a part of it, which tells the computers what to do and the data, which provide the information needed to solve the problem, are kept inside the computer in a place called memory.

Computers are thought to have many remarkable powers. Most computers, whether large or small have three basic capabilities.

First, computers have circuits for performing arithmetical operations, such as: addition, subtraction, division, multiplication and exponentiation. Second, computers have means of communicating with the user. If we couldn’t feed information in and get results back these machine wouldn’t be of much use.

However, certain computers (commonly minicomputers and microcomputers) are used to control directly things such as robots, aircraft navigation systems, medical instruments, etc. Some of the most common methods of inputting information are to use terminals, diskettes, disks and magnetic tapes.

The computer’s input device (which might be a disk drive depending on the medium used in inputting information) reads the information into the computer. For outputting information, two common devices are used a printer which prints the new information on paper, or a cathode-raytube (CRT) display screen which shows the results on a TV-like a screen. Third, computers have circuits which can make decisions. The kinds of decisions which computer circuits can make are not of the type: ‘Who would win a war between two countries?’ or ‘Who is the richest person in the world?’ Unfortunately, the computer can only decide three things, namely:’ Is one number use more often than another? ‘Are two numbers equal?’ and, ‘Is one number greater than another?’

A computer can solve a series of problems and make hundreds even thousands of logical operations without becoming tired or bored. It can find the solution to a problem in a fraction that it takes a human being to do the job. A computer can replace people in dull routine, but it has no originality, it works according to the instructions given to it and cannot exercise value judgements.

There are times when a computer seems to operate like a mechanical «brain», but its achievement are limited by the minds of human beings. A computer cannot do anything unless a person tells it what to do and gives the appropriate information, but because of electric pulses can move at the speed of light, a computer can carry out vast numbers of arithmeticallogical operations almost instantaneously.

A person can do the same, but in many cases that person would be deal long before the job was finished.

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slisar4ukbogda
slisar4ukbogda
4,5(15 оценок)

1.A computer is a machine with an intricate network of electronic circuits that operate switches or magnetize tiny metal cores.

2.The machine is capable of storing and manipulating numbers, letters and characters.

3.The basic job of computers is the processing of information. For this reason, computers can be defined as devices which accept information in the from of instructions called a program and characters called data performming mathematical and logical operations on the information, and then supply results of these operations.

4.The program or a part of it, which tells the computers what to do and the data, which provide the information needed to solve the problem, are kept inside the computer in a place called memory.

5.Computers are thought to have many remarkable powers. Most computers, whether large or small have three basic capabilities.

6.A computer can solve a series of problems and make hundreds even thousands of logical operations without becoming tired or bored. It can find the solution to a problem in a fraction that it takes a human being to do the job. A computer can replace people in dull routine, but it has no originality, it works according to the instructions given to it and cannot exercise value judgements.

7.There are times when a computer seems to operate like a mechanical «brain», but its achievement are limited by the minds of human beings. A computer cannot do anything unless a person tells it what to do and gives the appropriate information, but because of electric pulses can move at the speed of light, a computer can carry out vast numbers of arithmeticallogical operations almost instantaneously.

TatyanaKras
TatyanaKras
4,6(94 оценок)
As for as the development of art of painting in ukraine is concerened , one should remember that the early period referred to icon-painting, that began to develop in kyivan rus in the end of the 10th century. icon painters- mostly monks- depicted christ, the virgin, angels and saints. byzantine traditions were a model. mosaic and frescos of st sophia cathedral in kyiv is one of the most distinguished among the memorials of that period.  portrait painting as separate genre appeared during the renaissance (the 16th century) and was strongly influenced by the icon tradition.  many ukrainian painters were attracted to the new academy of arts in st petersburg (1757) , which cultivated the classicist style of painting then popular in europe.  ukranian art of the middle of 19th century was closely connected with the name of t. shevchenko, who devoted most of his painting to ukrainian interests. he was considered the father of modern ukrainian painting. shevchenko painted monuments of ukraine. 

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