This is the first article in the understanding of the computer in the series aworldofhelp.com. Our goal is to help people understand how his team, not just say what they have to buy or use. Once you know how the team, the right to buy or to easily update the system. The series is designed to provide valuable information for users at all levels of knowledge, so that if a part of it seems too complex or too simple for you, hope you read and learn everything I can to articles. If you have questions or comments about this article or ask in the forum! RAM - What is it and why you need a large number of image many as a team consisting of a processor - memory of the CPU - RAM Hard Disk How these three components to communicate It is important to understand how a computer, and at the end to get an understanding of why need enough RAM for their programs. Around the Internet and in magazines can be found quantities of RAM is recommended for ordinary users. You can also find plenty of RAM was proclaimed as the best performance in U.S. dollars for its modernization. I do not agree, but I want you to understand what is really RAM, and why it may be an update. I have briefly discussed this topic in Notepad aworldofhelp Buyer's Guide on page 4 The information in this article is correct, but I'll try to do things a little clearer here. The article is divided into four sections covering: 1 The functions of the three components that are to discuss their relative speed and 2 Why do you need RAM, and what he has RAM 3 Multitasking and how it improves performance of RAM 4 How much RAM you need is the CPU for Central Processing Unit. He is the brains of your computer. When you open a program like Microsoft Word, for example, CPU read the lines of computer code, and follow the instructions so you can use the software. When you play an audio file formats like MP3, the CPU has to do to decompress work while you play. When you change an image of the CPU is to perform many calculations, even for the smallest changes. One thing to note is that the processor is actually a very small amount of memory in it. It is the fastest memory in a computer system, but it is so small that it does not really affect this article. Overall, the processor does not store information that make up the program, MP3, or image, a single process. The data were placed in any part of your team, and the CPU is to find and retrieve later. That measure, the problem of finding data and how it affects their overall performance of the system is what this article. RAM RAM means Random Access Memory. This memory is very fast, and you will see in size to 256 MB, 512 MB or 1024 MB When you turn off your computer, the content is erased, except that the temporary memory. This is where the CPU is first to provide data to be processed. So if you change an image and data in RAM, memory is fast memory, change the image that will happen fairly quickly. Hard disk on the hard disk where you store all your software, music, video and all we keep on your computer. This is where the memory to store files that remain even after disabling the system. You see in all sizes, which typically range from 30 GB, hundreds of gigabytes. The cases are very slow regarding the processor and RAM, since they are mechanical. Inside the small disk, in fact, it is the readers who move to physically locate and read the data. If you change an image, the CPU will first address the RAM to see if it is, because the RAM is fast. If not, the processor will be on the hard disk and change the image. Because your hard drive is so slow, it takes much longer than if the image is in RAM. Again, CPU only put a bit of data, so you need a place to work. If the CPU available for the treatment you do it as quickly as possible, but if not, your brain in your computer just sit and hope to do nothing. Only after the lies and retrieve the necessary data to process. So ideally you want your CPU to find data in place as fast as possible. As you can see, if the data in memory, they are much better than if you are on your hard disk memory, because it is much faster. Just take a look at the chart below. Here is the time it takes to reach each type of memory in nano seconds. Clearly, the hard drive is too slow, but when you look at the figure above, and you see that the figures are based on you know that it is slow. Each of them is the nearest access time nano seconds:
CPU RAM 1 ns ns 60 ns 10000000
Hard should be clear why the bars of the CPU and RAM not even appear in this graph, the hard disk is simply too slow. So why the penalty with a hard drive? Are you sure you would think it would be great if you could simply use massive amounts of RAM instead of a hard disk. You're right, this will be a great situation, but as you can imagine, the fastest computer memory, it is more expensive. RAM prices have dropped significantly in recent years, but it costs much more in terms of hard disk space. Computers work within this limit - faster than the memory is more expensive - to watch the scene of faster information first, then go to places slower than when necessary. So if you hear the hard drive makes a noise or you see a light that shows you who is on, you know that the data are not in RAM. We now know that hard disk access is very slow, and it is therefore your CPU, and which, in turn, must wait. So now you know you have lots of RAM, at least enough for all its programs, if you do not have access to the slowness on your hard drive too often. But what really use RAM, and how can you see if your system has enough? Windows runs much RAM. Microsoft says that Windows XP on a machine with 64 MB of RAM, but recommends 128 MB or 256 MB if you have more memory than that, and I recommend you do, Windows will use some of them well. All that is charged when you start the computer also uses RAM. What these programs are actually made is to RAM, if you're tired, so they can be used with great speed. The problem is when there is not enough memory for all these programs, and the computer works very slowly. On my machine to load this software when I turn on the computer: AVG Antivirus Scanner Software Digital Camera Software alert AOL Instant Messenger and some software test server and then run after starting to use more RAM. Whatever the browser I use, for example, took the RAM. Microsoft Word is not too much, and all my programs. To see how much RAM you have and how much RAM you have, you can open the Task Manager, right-click on the Start menu and choose, it is as follows. On the right, in memory of my physical side effects section on the list. My total and available memory on the list, and you can see, only the boot on my Windows XP computer, and the burden of all the things I do, I have less than half of my RAM available for d ' other software. Your system will probably be less total RAM, but you can see how and how much is free. You can easily find out how much RAM you have, right-click on My Computer and go to properties, but it is useful to see here to understand what the Task Manager shows. You can use this tool to convert the number of K to a number of May that more comfortable with, MB . K MB on my computer, 1048040 K is 1023.4 MB, which is 1024 MB. His own system can provide a number from a few megabytes less than the real. For example, 252 instead of 256 It is normal and is the result of something else, like a video chip, using a portion of RAM. The RAM for its programs work is the number that appears in the Task Manager. In my example, I have hundreds of megabytes of RAM. Sometimes I meet RAM if I change the video or photo editing, but beyond, it is rare. It is a good thing, but remember table. If memory is full, the hard drive will be used more, and because it is so slow, grinding to a system of nearly detainees. When we look at the Task Manager, you can have a good idea of how the system is running. If you have lots of RAM, you're in good shape. But many systems that I have almost no free RAM, and that is what causes the system to use the hard drive and run slower. Note that the available RAM is usually never hit zero, but varies around a very small number if the system is out of memory. Our example to date has been simplified to show how to do something on your computer requires memory. However, the real advantage of having enough memory is multitasking. Basically, if you make more than one thing at a time, you are multitasking. If you read this article and the publication of a picture at the same time, it is multitasking. Generally, if you can switch between open applications on your system very quickly, both to be loaded into RAM. In this case, you'll probably see a lot of memory available on the Task Manager. On my computer, because I have a lot of RAM, I spend two or three browsers, Excel, PowerPoint, instant messaging, my music player, and faster. On the other hand, if you do not have enough RAM, even with only two open applications, including modification of the computer May slow significantly. The software that is changing, is not in the CPU and RAM are required to obtain information from the hard disk. To open multiple programs, the situation worsens. A Task Manager, in this case is likely to show very little memory free, very little in the fact that they are in compliance with all of its programs. How much RAM do you need? The best answer is that you have enough RAM to run all their applications and multi-task them quickly. If the system works well and that the Task Manager Audit and lots of RAM, you're probably in good shape. If the system is slow change among more than one program, check the Task Manager and see if your RAM available. If so, add the more likely that the whole system operate more quickly, simply by installing additional applications in RAM. You'll be amazed at how to resolve this problem, it will improve the overall experience. That is why so many people talk about RAM as the best upgrade older systems. If you buy a new computer with a 512 MB is a good amount of RAM for most users. If you edit images or videos, or if you can afford the upgrade, up to 1024 MB (1GB) is not a bad idea. Memory prices are much lower than where it was, and will have more memory for most programs now. For most users, the greatest benefit for more RAM is that if you keep your computer for an extended period, the additional RAM that can store an update on the road. But how much RAM is too much? So I do not slow down the system by adding RAM. Typical systems can now adjust anywhere from 512 MB - 2 GB of RAM. The problem is, once you have enough RAM, adding more really not much, if the gains in performance. In this spirit, return soon for an article comparing the performance of applications, including multitasking, with different amounts of RAM. We will test the 256 MB to 1024, and you can see how everything we have seen here have a real effect on the speed of your computer. Steve Perlow is the founder of http://aworldofhelp.com aworldofhelp.com, where you find the most sought aworldofhelp on desktop and portable systems. 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