The computer is an electronic system designed to process data and that from some input produces, in turn, the outputs. Can perform logical operations from the simplest to more complex programs such as word processing, gaming or graphics. The personal computer, that most of us use every day in the office and at home, is divided into various categories depending on the size and the services offered. classic The computer which is the focus of this guide is the desktop, or desktop computer. This is a general computer use, to be installed in a fixed location. If you are thinking to buy you a computer and you really want for you, the first things that you need to ask are: “How I will use this computer?
Types of desktop computers distinguishes between the different types. There are the ‘Tower’ computers or computer case vertical, of 3 different sizes (Mini Tower, Mid Tower and Full Tower), laptops (portable computers for those who moves often and must have its own PC at hand) and more modern models, now weight and ever-smaller, that are called netbooks. Even smaller and more useful for travelers, handhelds are an evolution of PDAs.
These computers, the reduced capacity compared to desktop computers, play organizer functions and functions-based such as browsing or word processing. Intended for home use, the desktop computer desktop generally has the right size to be placed precisely , on a desk. Most personal computers are desktop computers. The desktop is characterized by a great espandibiltà memory and good performance. Usually equipped with a RAM greater than that of laptops, desktop computer consists of one or more hard drives and has more resources at the hardware level. Continuous evolution of models and the competition between brands has resulted in a drop in prices This type of computer, but also a decrease in their time of use, which today rarely exceeds four or five years.
Why choose a desktop?
The desktop computer has the advantage of allowing you to replace parts or add new pieces without forcing you to change the entire machine. The internal components have a greater ventilation and a lower power consumption, which also reduces the possibility of failures. The cost of drives is also less than that of the handsets. The desktop PC, however, are more bulky and can not be moved from one room to another. Laptops are definitely smaller and less bulky: they are designed to be transported. You can work using the battery or using the power lead, but keep in mind that the battery life is reduced and that heats up more easily due to a more limited ventilation. Notebook computers can be easily repaired and bringing them around are automatically at risk of shock. Their life is definitely shorter also because of the battery, that is more expensive to replace.
How to choose a desktop computer?
Once you have decided to buy a desktop computer, you will need to think about the components and features that best suit your needs. If you want to spend so smart you will concentrate on the main components of the computer and drop functionality that is not essential. You can find desktop computer prices varied greatly, from economic models to more professional. Do not forget that brands have extended warranties in the world and that computers are for sale for most expandable.
If you use your computer when you are writing, the choice of the hard disk will not be particularly important: all models on the market can satisfy you for years. If, however, you have to graphics searching for a harddisk of at least 500 GB. You’ll need more than 1 TB if you want to download music, movies, video games, etc..
For video editing, you’ll need a video card and even a FireWire connection, a lot of memory is really an essential for those who work with sound or video.
Almost all computers have a memory of at least 2 GB, but if you use the computer for games or complex programs choose a memory 3-4 GB.
Let’s talk about the screen, a non-indifferent. We recommend 21-inch screens to get a good picture without straining sight, 27-inch if you work with graphics or video. Check in particular the speed “refresh” on your computer: the higher the value set, the higher the frequency with which an image will be redrawn by the computer. Choose screens with a value of refresh rate of at least 75 Hz. A component to which we are not usually too careful is the mouse. The mouse should be very handy if you use your computer several hours a day. The ideal mouse is capable of entering into a hand resting on a plane with the wrist relaxed and the muscles at rest: you can use it without moving the forearm. A computer must also have at least 4 USB ports and a FireWire connection for connecting peripherals such as a printer, digital cameras, scanners, and game controllers. It ‘always good to finally have a CD burner, a DVD burner and of course a DVD player.