Most people know that on computers, as well as in tablets and smartphones, there is memory RAM or Random Access Memory, but few people know what it means.
Without writing an unnecessary technical article, we see only to clarify some issues concerning the RAM trying to understand clearly what is, without getting lost in visit her.
Because the RAM is erased every time you shut down your computer?
RAM is volatile memory that is erased when no longer receives electrical power, or rather, needs energy to store data.
The memory is filled with new data at the time that is given to RAM new energy.
Since the data loaded in RAM are different for each session, it is useless that is stored permanently in memory only to delete it the next time. See list of initials.
Also the RAM has a much higher speed of the hard disk, which makes it ideal for storing temporary files so that the CPU can process them without having to wait until they are written on the slow hard drive.
The system will be able to upload all the temporary files on a RAM without slowing down the whole loading process.
The RAM is the buffer to the disk as it stores temporary files so that the CPU needs to process.
For example, when you start writing a new Word document, until it is saved to the hard disk remains in memory on the RAM and if the PC shuts down, you lose the entire contents, if it was not saved.
Less amount of RAM you have, the faster it becomes full of data and the computer is forced to write new data received on the disk (in a file called swapfile or virtual memory) that compared the RAM, is painfully slow.
Once the virtual memory becomes full, the computer almost freezes and stops working (for this reason the virtual memory size is variable).
When you increase the amount of RAM your PC, you increase the space available to load data without placed them on your hard disk and the computer goes faster. Unfortunately the RAM 32 bit computers don’t you can use more than 4 GB of RAM that are still enough memory to do almost anything.
Unfortunately, due to cost and its volatile nature, it is not possible to have a computer, theoretically a breeze, with only RAM and without disc. The RAM is being used to load operating systems Live so try them on your PC without installing them. This is ideal for you to try, for example, Linux on a Windows computer (see how to create a Live Linux USB stick to use on any computer). But since the RAM loses the stored data when there is no energy, a Live operating system is reset each time.
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