RAM, which stands for Random Access Memory, is a computer storage media which may be accessed noticeably faster than a disk drive, simply because the data can be read randomly, skipping the bytes before the needed data is reached. On a hosting server, the RAM is employed to load scripts and web programs once they are executed, so the more RAM you may use, the more apps you'll be able to run simultaneously and the more people will be able to check out your Internet sites without any effect on the site’s/server’s functionality. Unlike a disk drive, however, the RAM is employed for momentary storage purposes, because the info is lost when the power is shut off. In case you use a shared web hosting account, the physical memory which your scripts are able to use may be limited and could change based upon what the some other clients on the same web server use. Using a virtual or a dedicated hosting server, on the other hand, you'll have a guaranteed amount of RAM which won't be used by anyone else even when you don't use it at a particular time.