Guaranteed RAM
RAM, which means Random Access Memory, is a computer storage media that could be accessed much faster than a hard disk drive, because the info can be read randomly, skipping the bytes before the needed information is reached. On a hosting server, the RAM is used to load scripts and web programs when they are executed, so the more RAM you may use, the more programs you will be able to run at the same time and the more people will be able to look through your websites without effect on the site’s/server’s functionality. Unlike a disk drive, however, the RAM is used for non permanent storage purposes, as the information is lost when the power is shut off. If you use a shared web hosting account, the physical memory which your scripts could use may be limited and may change according to what the some other clients on the same web server use. Through a virtual or a dedicated server, on the other hand, you will have a guaranteed amount of RAM that won't be used by anybody else even when you do not use it at a particular time.