RAM, or Random Access Memory, is a kind 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 faster than other types of storage devices including DVDs or HDDs in which all of the info needs to be read so as to access certain info. When you have a shared hosting account, the exact amount of memory which your web apps can use can't be fixed and may frequently rely upon the free memory that's available on the physical server. Using a standalone server, however, there's always a minimum amount of physical memory which shall be at your disposal at all times and won't be allocated to other customers even if it's not used. That's valid with our virtual and dedicated web servers.