RAM, or Random Access Memory, is a sort of computer data storage, that allows the data to be read randomly without accessing the preceding bytes before that. That makes the RAM a lot quicker than other sorts of storage devices like DVDs or HDDs where all of the information has to be read in order to access particular data. When you have a shared hosting account, the total amount of memory that your web applications can use may not be fixed and may often depend on the free memory which is available on the physical hosting server. When using a standalone web server, however, there's always a minimum amount of physical memory which will be at your disposal at all times and will not be allotted to other customers even when it is not being used. That is valid with our virtual and dedicated servers.