Вопрос № 911627 - Английский язык

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Computer software, or just software is a general term used to describe a collection of computer programmes, procedures and documentation that perform some tasks on the computer system.
1_______. At the lowest level, software consists of a machine language specific to an individual processor. 2_______. Software is an ordered sequence of instructions for changing the state of the computer hardware in a particular sequence. It is usually written in high-level programming languages that are easier and more efficient for humans to use (closer to natural language). 3_______. The term “software” was first used in this sense by John W. Tukey in 1958. 4_______.

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A computer system is a collection of components that work together to process data. The purpose of a computer system is to make it as easy as possible for you to use a computer to solve problems. 1___________________________________. The hardware elements are the mechanical devices in the system, the machinery and the electronics that perform physical functions. 2___________________________________. Documentation includes the manuals and listings that tell you how to use the hardware and software.
3__________________________________. Usually, a computer system requires three basic hardware items: the computer, which performs all data processing; a terminal device, used like a typewriter for two-way communication between the user and the system; and a storage medium for storing programs and data. 4__________________________________.

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A computer is an electronic machine that processes information – in other words, an information processor: it takes in raw information (or data) at one end, stores it until it’s ready to work on it, chews and crunches it for a bit, then spits out the results at the other end. 1_______. Taking in information is called input, storing information is better known as memory, chewing information is also known as processing, and spitting out results is called output.
Your keyboard and mouse, for example, are just input units – ways of getting information into your computer that it can process. 2_______. Your computer probably stores all your documents and files on a hard-drive: a huge magnetic memory. But smaller, computer-based devices like digital cameras and cellphones use other kinds of storage such as flash memory cards. As for output, your computer almost certainly has a screen and probably also stereo loudspeakers. 3_______. Your computer’s processor (sometimes known as the central processing unit) is a microchip buried deep inside. 4_______. That’s why your computer has a little fan blowing away – to stop its brain from overheating!

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Today, most computer users buy, download, or share programs like Microsoft Word and Excel. 1_______. Most people see their computers as tools that help them do jobs, rather than complex electronic machines they have to pre-program – and that’s just as well, because most of us have better things to do than computer programming. 2_______. In other words, although we don’t really think of it this way, the computer can be reprogrammed as many times as you like. This is why programs are also called software. 3_______. By contrast, a computer’s hardware – the bits and pieces from which it is made (and the peripherals, like the mouse and printer, you plug into it) – is pretty much fixed when you buy it. 4_______. That computers can do so many different jobs is what makes them so useful – and that’s why millions of us can no longer live without them!

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1_______. Based on capacity, speed and reliability they can be divided into three categories of computers:
1. The mainframe computers are computers used by large organizations like meteorological surveys and statistical institutes for performing bulk mathematical computations. 2_______.
2. The microcomputers are the most frequently used computers better known by the name of “personal computers”. 3_______.
3. The minicomputers like the mainframe computers are used by business organization. 4_______.

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1_______.
The Analog computer is almost an extinct type of computer these days. It is different from a digital computer in respect that it can perform numerous mathematical operations simultaneously. 2_______. It utilizes mechanical, hydraulic, or electrical energy or operation.
Hybrid computers are, as the name suggests, a combination of both Analog and Digital computers. 3_______. But the problem is that they are too slow and incapable of large scale mathematical operation. 4_______.