RAM, or Random Access Memory, is a form of computer data storage, that permits the info to be read randomly without accessing the preceding bytes before that. This makes the RAM considerably quicker than other kinds of storage devices like DVDs or HDDs in which all the info needs to be read to be able to access certain info. If you have a shared hosting account, the amount of memory which your web programs can use can't be fixed and may regularly depend on the free memory that is available on the physical server. With a standalone server, however, there's always a minimum amount of physical memory that will be for your use at all times and shall not be allocated to other clients even if it's not used. That is valid with our virtual and dedicated web servers.