Прочитайте текст. Computer systems can be discussed in two parts: hardware and software. The hardwar...: ответ на тест 1072600 - Английский язык

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Computer systems can be discussed in two parts: hardware and software. The hardware is physical, electronic, and electro-mechanical devices. The hardware consists of Central Processing Unit (CPU), input devices and output devices. Input devices are used to provide data for the CPU. The keyboard is a common data input device. Data is sometimes entered on cards. The cards are read by an input device called a card reader. Output devices receive data from the CPU. The visual display unit (VDU) and printers are common output devices. Input devices, output devices and mass storage devices are collectively called Input-Output Devices, or peripherals. The software contains the programmes that control and coordinate the activities of the computer hardware and direct the processing of data.
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The cards are read by an input device called …

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Peripheral devices are categorized as input/output (I/O) devices since the functions they perform provide information (input) to the computer, accept information (output) from the computer, or do both. Line printers are output devices because they perform only output operations. Terminals and storage devices are input/output devices because they perform both input and output operations.
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Line printers are output devices because ______________________.

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A typical hardware set-up of a desktop computer consists of many components.
These components can usually be put together with little knowledge to build a computer. The motherboard is the part of a computer that connects all devices together. The memory card(s), graphic cards and processor are mounted directly onto the motherboard (the processor in a socket and the memory and graphic cards in expansion slots). The mass storage is connected to it with cables and can be installed in the computer case or in a separate case. This is the same for a keyboard and a mouse, except that they are external and they are connected to the I/O panel on the back of the computer. The monitor is also connected to the I/O panel, either through the onboard port on the motherboard, or the port on the graphic card.
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The memory card(s), graphic cards and processor are mounted directly …

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CPU or Central Processing Unit is that part of a computer which executes software program instructions. In older computers this circuitry was formerly on several printed circuit boards, but in PCs it is a single integrated circuit. Nearly all PCs contain a type of CPU known as a microprocessor. The microprocessor often plugs into the motherboard using one of many different types of sockets. IBM PC compatible computers use an X86-compatible processor, usually made by Intel, AMD, VIA Technologies or Transmeta.
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Nearly all PCs contain a type of CPU known as …

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The study of the nucleus of an atom is known as nuclear physics. As a result of this study, scientists have discovered ways of splitting the nucleus to release huge amounts of energy. One nucleus is split, causing many others to split, in what is called a nuclear chain reaction. A controlled nuclear reaction inside a power station can be used to provide heat and light for our homes.
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You put pressure on something when you apply a force to it. The amount of pressure depends on two things: the size of the force, and, more importantly, the size of the area on which it is applied. The smaller the area, the greater the pressure. This principle explains why thin stiletto heels sink into wooden floors and damage them. It also explains why a camel’s large, flat feet prevent it from sinking into the sand in the desert.
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