RAM, or Random Access Memory, is a form of computer data storage, that permits the information to be read randomly without accessing the preceding bytes before that. That makes the RAM substantially faster than other sorts of storage devices such as DVDs or HDDs where all the data must be read to be able to access specific data. In case you have a shared hosting account, the total amount of memory that your web applications can use can't be fixed and may sometimes depend on the free memory which is available on the physical web server. With a standalone web server, however, there is always a minimum amount of physical memory which shall be available at all times and will never be assigned to other clients even when it's not used. That's valid with our virtual and dedicated servers.