Прочитайте текст Computer programs are called software. Software is instructions for hardware the ma...: ответ на тест 438856 - Английский язык

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Computer programs are called software. Software is instructions for hardware (the machines) to do work. Software is often divided into two categories:
Systems software: the operating system and all the utilities that enable the computer to function.
Applications software: programs that do real work for users. For example, word processors, spreadsheet programmes, and games are applications software.
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What are applications software?

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Computer programs are called software. Software is instructions for hardware (the machines) to do work. Software is often divided into two categories:
Systems software: the operating system and all the utilities that enable the computer to function.
Applications software: programs that do real work for users. For example, word processors, spreadsheet programmes, and games are applications software.
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What are applications software?

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Hard disk drive is the mechanism that reads and writes data on a hard disk. Hard disk drive has many inflexible platters (discs) coated with magnetic material. Read/write heads can record computer data on these discs. A typical hard disk rotates at 3,600 revolutions per minute, and the read/write heads ride over the surface of the disk on a cushion of air 25 micron deep. Hard disk drives (HDDs) for PCs generally have seek times of about 12 milliseconds or less. Hard disk drives are sometimes called Winchester drives. Winchester is the name of one of the first popular hard disk drive technologies developed by IBM in 1973.
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How are hard disk drives sometimes called?

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Under MS-DOS 3.20 you can create and access names for many different types of devices - just as if they are physical disk drives installed in your system. The devices you can access as disks are:
- internal floppy-disk drives
- external floppy-disk drives
- additional drive identifiers for floppy-disk drives, defined by DRIVER.SYS
- hard-disk drives of many different sizes
- RAM disks created in the computer’s memory
- directories that  have  been given logical  drive names using SUBST
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Can you create and access names for all devices in MS-DOS 3.20 system?

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Each search engine maintains a unique index, and operates in a particular manner. Different search engines use different robots, scan different pages for different information, use different classification and search strategies and display results in different ways. Before using an unfamiliar search engine for the first time it is always sensible to browse through its help file to get a few tips on what it offers. Most of them attempt - at least nominally - to incorporate the more user-friendly directory style in some way, but trying to keep up with them is a continual learning process.

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As a form of international communication, the Internet has been in constant expansion since 1973, when the ARPAnet was first connected to the United Kingdom and Norway. Much of northern Europe was connected to the Net in the early 1980s. Japan and Canada soon followed suit. A special link was established between Germany and China at about the same time. And then in the late 1980s the real growth began as Australia, Iceland, Israel, Italy, Mexico, New Zealand and Puerto Rico joined the Net.