RAM is an abbreviation for Random Access Memory. This is a kind of computer memory, which, unlike other storage devices like hard disks or DVDs, permits the information to be accessed directly without reading the previous content located within it. Anytime an app is launched, it's stored within the RAM, due to the fact that it could be accessed much faster than if it was read from another media device. With regard to the website hosting service itself, extra RAM means that more web applications can operate concurrently on a given web server, particularly if they are resource-demanding and are accessed by a great number of of people concurrently. Unlike a shared web hosting package in which the system resources of a particular account may be flexible and sometimes depend on what other users consume too, a VPS includes a guaranteed amount of RAM which can be used always. That memory is assigned to one hosting server only and will not be used by other customers even when it's not used.