RAM, or Random Access Memory, is a sort of computer data storage, that permits the info to be read randomly without accessing the preceding bytes before that. That makes the RAM a lot faster than other kinds of storage devices like DVDs or HDDs where all of the data needs to be read to be able to access certain information. In case you have a shared hosting account, the exact amount of memory your web programs can use can't be fixed and may frequently be determined by the free memory that is available on the physical machine. Using a standalone web server, however, there's always a minimum amount of physical memory that'll be readily available at all times and will never be allotted to other clients even when it is not used. That's valid with our virtual and dedicated servers.