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| OS/2 Presentation Manager | |
|---|---|
| Name | OS/2 Presentation Manager |
| Developer | IBM, Microsoft |
| Released | 1988 |
| Latest release | Presentation Manager for OS/2 2.0 (1992) |
| Operating system | OS/2 |
| Genre | Graphical user interface, Windowing system |
OS/2 Presentation Manager OS/2 Presentation Manager was the graphical user interface for the OS/2 operating system developed initially by IBM and Microsoft that debuted in the late 1980s alongside OS/2 1.0 and continued through OS/2 2.0 and later OS/2 Warp. The system integrated ideas from Microsoft Windows, IBM Systems, and contemporary research at institutions such as Xerox PARC and reflected industry influences from companies like DEC, Apple Computer, and Sun Microsystems. Presentation Manager played a role in the user-interface evolution that involved entities like Digital Research, Novell, Compaq, and standards bodies such as IEEE.
Presentation Manager was introduced as the windowing and widget layer for OS/2 1.0 in coordination between IBM and Microsoft, following earlier collaborations on MS-DOS extensions and cooperative projects with firms including Intel and Microsoft Windows. During the breakup of the IBM–Microsoft partnership, development paths diverged with Windows NT pursued by Microsoft and OS/2 continued by IBM and partners like SCO and later Warp 3 contributors; corporate decisions by executives at IBM and strategic shifts influenced its market trajectory alongside competitors such as Apple Macintosh and AmigaOS. Adoption cycles involved enterprise customers like Bank of America, General Electric, and governmental agencies influenced by procurement policies from entities including US Department of Defense and standards driven by ISO committees.
Presentation Manager employed a client–server-like architecture layered on top of the OS/2 kernel and protected-mode services provided by Intel 80286 and later Intel 80386 processors; its subsystem model paralleled design patterns seen in X Window System and influenced by research at MIT and Carnegie Mellon University. Core components included a message queue, graphical device interface, and resource management tied to IBM VisualAge tools and influenced by middleware approaches from CORBA proponents and companies such as SUN Microsystems and Oracle Corporation. The architecture supported preemptive multitasking, threads, and memory protection features familiar to designers from Unix System V and VMS environments developed at Digital Equipment Corporation.
The UI presented desktop metaphors, overlapping windows, menus, and dialog boxes similar to contemporaneous systems from Apple Computer and Microsoft Windows 3.0, while incorporating IBM design language evident in products like IBM Rational tools. Presentation Manager included standardized controls, accelerators, and keyboard navigation reflecting accessibility and localization efforts informed by institutions such as United Nations language initiatives and corporate clients including Siemens and Hitachi. Features such as printer spooling, clipboard interoperability, and drag-and-drop paradigms showed conceptual parallels with implementations from AmigaOS, NeXTSTEP, and Macintosh System Software.
Application development targeted Presentation Manager via APIs exposed in headers and libraries distributed with development kits from IBM and third parties such as Borland, Rational Software, and Watcom. Languages and toolchains included C, C++, and higher-level environments like IBM VisualAge and compilers from Microsoft Visual C++ and Borland Turbo C++, with debuggers and profilers influenced by products from Rational and Applied Systems. The API model supported message-driven programming, GPI drawing calls, and resource scripts similar in spirit to Win32 and event models promoted by groups at ACM and IEEE conferences.
A range of commercial and enterprise applications targeted Presentation Manager, including office suites from vendors like Lotus Development Corporation and database front-ends by Oracle Corporation integrators; vertical market software for firms such as Siemens and Fujitsu also appeared. Independent software vendors including Corel, Novell, and Symantec produced utilities, productivity tools, and drivers, while developer communities akin to those around GNU and Free Software Foundation produced ports and compatibility layers. The ecosystem interfaced with networking stacks from IBM Communications Server and third-party connectivity like Novell NetWare and TCP/IP implementations used in research at Berkeley.
Presentation Manager emphasized binary and source compatibility across OS/2 releases and offered interoperability with MS-DOS and early Microsoft Windows applications through compatibility subsystems and emulation strategies inspired by work at Bell Labs and commercial emulators from firms like Insignia Solutions. Printer and graphics device support followed standards promoted by PostScript vendors such as Adobe Systems and by hardware manufacturers like Hewlett-Packard and Canon; networked file and print services aligned with protocols developed in environments such as IETF and academic projects at MIT.
Though Presentation Manager waned commercially as Microsoft Windows and later Windows NT variants dominated, its influence persisted in desktop metaphors, API design, and enterprise deployment practices that informed later products from IBM and open-source projects inspired by work at Xerox PARC and MIT. Elements of its event-driven model, window management, and localization support contributed to design discussions in communities around GNOME, KDE, and corporate platforms from Apple and Microsoft; academic retrospectives at Stanford and Carnegie Mellon University examine Presentation Manager’s role in GUI evolution.
Category:Graphical user interfaces