RAM, that refers to Random Access Memory, is a computer storage media which can be accessed faster than a hard disk, due to the fact that the info 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 when they are executed, so the more RAM you may use, the more apps you will be able to run all at once and the more people shall be able to explore your Internet sites without effect on the site’s/server’s performance. In contrast to a disk drive, however, the RAM is employed for short-term storage purposes, due to the fact that the data is lost the moment the power is shut off. If you use a shared web hosting account, the physical memory your scripts could use may be limited and might change depending on what the some other clients on the same hosting server use. Through a virtual or a dedicated web server, on the other hand, you will have a set amount of RAM that won't be used by others even when you don't use it at a given time.