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What's inside?<br><br>Home or office computer (in the everyday sense - the computer is ordinary) consists of a system unit and peripherals (monitor, keyboard, mouse, scanner, printer, etc.).<br><br>I will not describe what the monitor, printer and keyboard look like, but I will immediately go to the description of the insides of the main component of the computer - the system block.<br><br>We remove the side cover of the system block and see the following picture:<br><br>Computer device, pic. 1<br>Photos of the internal computer device<br><br>The main components of the system unit are:<br> 1. The case is a very important part of the computer. There are different sizes and form factors. The choice of the system unit case should be carefully approached. In principle, the larger and heavier the body, the better - it will be easier to provide good cooling and low noise. Buy the buildings of only known brands, for example: InWin, Thermaltake, Chieftec, Asus, etc.<br><br>2. The power supply is one of the most important components of the computer's system unit. You can save on anything, but not on the power supply. Oddly enough, but the quality of the power supply can indirectly be determined by weight - the heavier the better. Take in one hand a cheap nameless power supply, and in the other expensive brand, and you will understand everything. The power supply provides power to all components of the system unit, and the quality of this food has a significant impact on the health of all components. Poor power supply can cause unstable computer operation and even cause burnout of expensive components. Brand cases are usually equipped with enough high-quality power supplies. When choosing a power supply, you also need to pay attention to its power, for example, for an office computer will be enough 300 w, and for the game may not be enough.<br><br>3. Microprocessor (CPU - central processor) with cooling radiator and fan. A microprocessor is the main computing device of a computer, it performs commands, the sequence of which consists of programs. The performance of the processor largely depends on the performance of the computer. The processor's performance is determined by the frequency at which it operates, the number of cores, and the architecture. Now there are two main brands on the market: Intel and AMD. The choice of processor is determined by the tasks for which the computer is bought. Top models are usually needed for games, video processing and similar tasks. (ofnet.ru)<br><br>4. Hull fan. It is necessary to create air circulation inside the system unit: usually works on blowing, removing warm air from the computer's enclosure and causing an influx of cold air from outside.<br><br>5. RAM modules. RAM (RAM - ram storage device, RAM) is a fast-acting computer memory. It is with this memory that the processor works directly. Once the computer is turned off, the information stored in it is erased. Given the voraciousness of modern programs, the rule is: the more RAM, the better. At the moment, the optimal amount of RAM, perhaps, will be 4-8 gigabytes.<br><br>6. Video card (video adapter, video board, videocard, videoadapter) - is engaged in processing and displaying graphic information on the monitor. The graphics card has its own specialized graphics processor, which handles 2D/3D graphics information. This reduces the processing load on the CPU. For office applications will suit almost any graphics card (even built into the motherboard), but for toys will have to fork out. Choose a game card, I think, should be predetermined with a set of games that I would like to play. Choosing a top graphics card make sure that the power of your power supply will suffice.<br><br>7. Modem. (Probably in Moscow is no longer an irrelevant device)<br><br>8. Network map. Through a network map, the computer connects to a local or global network (Internet). Currently, network boards are generally integrated into the motherboards.<br><br>9, 10. CD or DVD (CD/DVD-ROM). There are both writers and non-writers. The speed of reading and writing may vary.<br><br>11. Hard drive (harddisk, HDD) is a long-term memory device, data is not erased when power is turned off, the speed is much lower than that of RAM, and the capacity is much higher. All your installed programs, documents, music and movies are stored on the hard drive. Its capacity is measured in Gigabytes - the bigger the better, although for most office applications 40-80 gigabytes are enough.<br><br>12. Motherboard is the main component of the system unit, as it combines all of the listed devices, and also contains additional components: network
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