RAM, which means Random Access Memory, is a computer storage media that can be accessed much faster than a hard disk, as the information can be read randomly, skipping the bytes before the needed data is reached. On a hosting server, the RAM is used to load scripts and web apps when they are executed, so the more RAM you are able to use, the more applications you will be able to run simultaneously and the more people shall be able to look through your Internet sites without any effect on the site’s/server’s performance. Unlike a disk drive, however, the RAM is employed for momentary storage purposes, as the info is lost once the power is shut off. If you use a shared web hosting account, the physical memory which your scripts can use may be limited and may change depending on what the other customers on the same server use. With a virtual or a dedicated web server, on the other hand, you shall have a guaranteed amount of RAM which will not be used by others even if you do not use it at a certain time.