RAM, or Random Access Memory, is a sort of computer data storage, which enables the data to be read randomly without accessing the preceding bytes before that. That makes the RAM considerably quicker than other kinds of storage devices like DVDs or HDDs where all of the information has to be read in order to access particular data. In case you have a shared hosting account, the exact amount of memory which your web programs can use cannot be fixed and may regularly be determined by the free memory that's available on the physical web server. With a standalone server, however, there's always a minimum amount of physical memory that shall be readily available at all times and shall not be allocated to other customers even if it isn't in use. That's valid with our virtual and dedicated web servers.