The corporation have variety of choices based on requirement and the financial affordability to use the operating system.
1. Microsoft windows: It is user-friendly and one of the widely used Operating system. This is GUI (Graphical user Interface) Operating System. But the corporation needs to pay for licence to the Microsoft company.
2. Unix / Linux: This is once again GUI based and one of the widely used Operating System. This is a free ware. This is also an Open Source where the programmers keep updating the feature.
3. MS-DOS: This is one of classical operating system which has Character User Interface. User needs to remember so many commands to work with it and it will not suit for the given situation