RAM, or Random Access Memory, is a sort of computer data storage, that enables the data to be read randomly without accessing the preceding bytes before that. That makes the RAM noticeably quicker than other types of storage devices such as 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 total amount of memory your web apps can use may not be fixed and may sometimes depend upon the free memory which is available on the physical web server. Using a standalone server, however, there is always a minimum amount of physical memory that shall be at your disposal at all times and will never be allotted to other customers even if it isn't being used. That's valid with our virtual and dedicated servers.