Just about the complex: how does the computer work?
I believe that since you are already reading this article from an Internet resource, it means that you are familiar with such a device as a computer, saw it and imagine what it looks like.
And have you ever thought about howdoes the computer work? In addition to these, of course, important components, like a monitor, a system unit, a keyboard and a mouse, there are also components that can be seen only by looking inside. This is a video card, RAM, hard drive and processor.
Although if you do not have the necessary baggageknowledge, then open the lid of your system unit or unwind the monitor, I would not advise you. First, you can break something irreparably, and secondly, you will not understand anything.
I suggest starting with a purely theoretical knowledge.
Section 1. How does the computer work? Imagination, gentlemen, imagination!
So, I think, we have already decided that no one will try to raskusvyray and raskurochit system unit to better get acquainted with its contents.
I suggest to imagine a drawing. Not some masterpiece of world painting, but rather something like children's doodles. A desk with drawers, on which stands our computer, consisting of a monitor, a system unit, a keyboard, a mouse, and, perhaps, we will add a couple more speakers. Well, have you submitted it? Now, next to all this, draw a little man, in this case, himself. Are you ready?
Now I will tell you a secret: here this little man is actually a very very powerful dual-core processor of the INTEL type (well, or ATLON). Although it is possible that it is not dual-core ... In this case it is not so important. There is quite a logical question about why the processor is Yes. Because this device, like the brain of a modern person, can calculate thousands of different operations ahead of time. It's a kind of brain, but how to work with a computer without a brain? No way!
Go ahead. The monitor shown in our virtual drawing will be a video card. The surface of the desk will be turned into RAM, but the drawers of the table will replace us with a hard disk called a hard drive. Now we "connect" everything to the motherboard (well, in our case with you to the bottom of the table). Are you ready?
It is on this principle that the device works.
Section 2. How does the computer in general and each of the components separately.
Return to our picture: you are sitting at the table, i.e. is a processor inserted into the motherboard, and your room is nothing more than a system unit.
Enough of imagination?
Imagine a situation when a normal average user comes in, presses the power button. The processor (ie, in this case to you) receives a signal, and it is included in the work.
If a user wants to watch a movie oropen some necessary document, he will send "you" the appropriate signal. You will climb into the desk drawer (that is, into the hard drive) and dig out everything you need.
RAM runs thousands of times faster,than the processor, it speeds up the process of finding this or that information. It really resembles the surface of the table and allows you to keep everything you need to keep in mind, and not climb every time in the drawers of the table, thus spending time and energy.
It seems to me that now everyone who aspires to learn how the computer works will reasonably ask, and then why do we need a hard drive if we take the material out of it for a very long time.
The thing is that a hard drive that hassignificant volume, can be considered as a kind of storage. Think about it, what is the surface of the table in comparison with all that free space that boxes contain? In addition, RAM can not work without a constant power supply, so it's only necessary to disconnect the computer from the network, as all the stored information will move again to the hard drive.
Section 3. How does the computer work? The conclusion.
Now let's sum up. So, everyone within the computer is controlled by the processor, it processes all the data stored here and the data necessary for the job. RAM is needed in order to speed up the processor. Winchester is a kind of information store.
Video card, as you probably already havehave guessed, it is necessary for the user to see everything that is happening on the monitor. The better and higher its parameters, so, respectively, and the picture quality will be better.
A sound card that is on our virtualthe figure was represented by columns, responsible for all sounds on the PC, thus freeing up the processor time for processing other data. It should be said that now in most cases it is already embedded in the motherboard.
How to learn to work on a computer person who does notknowing all of the above. We breathe and live, although not everyone is aware of how the lungs or heart are arranged. Here and with the PC. Can. That's just for some, perhaps, boring.