RAM, or Random Access Memory, is a kind of computer data storage, that enables the info to be read randomly without accessing the preceding bytes before that. That makes the RAM considerably faster than other kinds of storage devices such as DVDs or HDDs where all the info needs to be read in order to access specific info. When you have a shared hosting account, the amount of memory your web applications can use cannot be fixed and may commonly rely upon the free memory which is available on the physical web server. When using a standalone web server, however, there's always a minimum amount of physical memory which will be readily available at all times and will not be allocated to other customers even if it is not being used. That's valid with our virtual and dedicated servers.