understanding IBM OS / 2

Operating system IBM OS / 2 is made ​​with jointly by the International Bussiness Machines Corporation and Microsoft Corporation, for use on IBM computers instead of DOS Operating System. Said OS / 2 stands for Operating System / 2, Operating System is designed to be able to use the full capabilities of the Intel 80286 microprocessor, including the Protected Mode (Protected Mode), able to perform simultaneous tasks, and support for Virtual Memory, by maintaining compatibility with many MS-DOS software in circulation at that time as well)