Introduction to UNIX According to Leon, 2007, UNIX can be an operating-system (Operating-system) is software that manages hardware and software sources of a pc. UNIX was first developed in the 1960s and has been frequent development ever since. UNIX is one of the most widely used os's in industry, government and education. It is a stable, multi-user, multi-tasking system for servers, desktops and notebook computers. UNIX Memory space Management Memory can be an important reference in computer. Memory management is the process of managing the computer recollection which contains primary recollection and secondary ram. The target for storage management is to keep an eye on which parts of memory are in use and which parts are not used, to allocate ram to processes when they want it and de-allocate it when they are done.