RAM is random access memory which can be written to and read.
ROM is read only memory which is programmed to do a specific job,
it can not be edited after it has been burnt ROM-- When viewing on a computer, Read Only Memory is information you can read and cannot click or cannot make it operable. It is not accessible.
RAM--When viewing on a computer, Random Access Memory is information you can access and you can click and you can make it operable. It is accessible.