RAM is an abbreviation for Random Access Memory. This is a type of computer memory, which, in contrast to other storage devices such as hard disks or DVDs, permits the info to be accessed directly without reading the previous content saved in it. Every time an application is launched, it is stored within the RAM, due to the fact that it may be accessed much more quickly than if it was read from another media. In terms of the web hosting service itself, extra RAM means that more web apps can operate at the same time on a particular hosting server, particularly when they are resource-demanding and are accessed by a significant number of people all at once. In contrast to a shared web hosting solution in which the resources of a particular account may be flexible and often depend on what other users consume also, a VPS provides a guaranteed amount of RAM which you can use all the time. That memory is allocated to one hosting server only and will not be used by other clients even in case it is not used.