OS/2* is an advanced, multitasking, operating system for personal computers. OS/2 has a rich application programming interface (API) that supports:

• Multitasking
  
• Interprocess communication
  
• Error and exception handling
  
• Dynamic (run-time) linking
  
• Graphical user interface (GUI)

OS/2 also provides advanced file system features such as installable file systems, extended file attributes, and long file names.

OS/2 runs on and takes full advantage of the 80386 microprocessor. Features based on the 80386 microprocessor include:

• 32-bit operands and operations 
  Flat (non-segmented) 4 gigabyte address space
  
  32-bit memory pointers
  
  Hardware-based memory protection and task management

  OS/2 provides a windowed, graphical user interface called the Presentation Manager* (PM*).

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