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The Microsoft Word word processor was first introduced for MS-DOS in 1983. Its design made use of a mouse and WYSIWYG graphics. Its crude WYSIWYG/mouse support was a direct response to the Apple Lisa/Mac, and VisiCorp Visi On. Initially it competed against many popular word processors such as WordStar, Multimate, and WordPerfect. Word for DOS was never really successful.


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Mozilla is an open source web browser based on a rewrite of the Netscape web browser. Netscape Communications Corporation released the source code in 1998 with the intent that it would be used as the core of next Netscape browser. Shortly after the release, Netscape Communications Corporation was acquired by AOL. Mozilla was used for the basis of Netscape 6.x and 7.x. Mozilla (later codenamed SeaMonkey) was eventually reworked and became Firefox.


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Netscape Navigator/Communicator was the first commercial web browser, displacing the free NCSA Mosaic. 1.0 was first released in December 1994, and initially offered advanced features such as progressively rendering pages as they loaded. It quickly gained many other features and capabilities and became the most popular web browser in the mid 1990s. One reason for its popularity, it was licensed freely for personal and non-profit use, although companies were expected to pay for a license. It later competed with Microsoft Internet Explorer, Opera, and Safari, and eventually was open sourced in to the Mozilla browser.


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Novel NetWare was an early and powerful network/file sharing operating system. It was first released in 1983 and supported DOS and CP/M clients and was initially unique in that it shared individual files rather than entire disk volumes. Initially servers ran on a proprietary Motorola 68000 system but quickly changed to IBM PC where it supported a very wide variety of third party hardware. It used a cooperative tasking server environment and had some advanced features usually only found in mainframe products.


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NeXTSTEP, from NeXT Computers headed by Steve Jobs, is a Unix based operating system designed to run on m68K NeXT workstations. It later became the basis for OS X, with APIs and concepts preserved today.


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Norton Commander is a MS-DOS based file shell that was widely popular due to it's two column design. You could easily copy and move files between one folder or another, execute DOS commands and more. It competed against many other file managers including Gazelle Q-DOS and Xtree


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The Norton Utilities is a suite of disk and system utilities designed to enhance system performance and stability. It started off as a set of disk utilities written by Peter Norton, and later was sold by Symantec. It competed against Central Point PC Tools and the Mace Utilities. In 2003, Norton Utilities was merged with Norton SystemWorks, but later split back out.


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Tools for converting and running Windows applications in OS/2.


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Genera is a commercial operating system and integrated development environment for Lisp machines developed by Symbolics. It is essentially a fork of an earlier operating system originating on the Massachusetts Institute of Technology (MIT) AI Lab's Lisp machines which Symbolics had used in common with Lisp Machines, Inc. (LMI), and Texas Instruments (TI). Genera is also sold by Symbolics as Open Genera, which runs Genera on computers based on a Digital Equipment Corporation (DEC) Alpha processor using Tru64 UNIX. the programming language Lisp. software using a mix of programming styles with extensive support for object-oriented programming.


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OS/2 was originally a joint effort between IBM and Microsoft. It grew out of efforts to create a Multitasking MS-DOS. It was intended to be the future OS for IBM's new PS/2 series. At release it competed against Microsoft's Windows GUI shell, but most users continued to use DOS. OS/2 1.x was used as the basis for Citrix Multiuser | 1.x | 2.x | 3.x | 4.x | All |


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OS/2 2.0 was a major change over OS/2 1.x. It was the first 32-bit OS/2 and built by IBM free of Microsoft's influence or contribution. It was the first to feature the new Workplace Shell GUI, and the first to be 32-bit. It was followed up by OS/2 Warp 3. | 1.x | 2.x | 3.x | 4.x | All |


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OS/2 3.0, marketed under the name "OS/2 Warp", reduced memory usage over OS/2 2.x and included Internet access software. The "Connect" version includes Ethernet networking and peer-to-peer file sharing. The "Blue Spine" editions bundle the Windows 3.1 files so no additional software is needed to use the Win-OS/2 subsystem. It was followed up by OS/2 Warp 4. | 1.x | 2.x | 3.x | 4.x | All |


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IBM's semi-often correspondence for OS/2 development.


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OS/2 Warp 4 incorporated a number of new technologies over OS/2 Warp 3, such as Java, OpenGL, OpenDoc, and VoiceType. It also updated the appearance of the Workplace Shell. | 1.x | 2.x | 3.x | 4.x | All |


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OS/400 (now known as IBM i, previously i5/OS) is the operating system of the AS/400 (now Power Systems, previously System i) series of minicomputers by IBM. It is the replacement for CPF for the System/38 and SSP for the System/36. In addition to a consistent programming environment and a user-friendly interface, it features advanced features not seen in other platforms such as tagged memory, single-level storage, is exclusively written in managed languages.


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OS2 Device Driver Pak CD Volume 1.0 is a CD released by IBM to make installation of OS/2 Warp 4 easier.


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PasteUp is a text processing system that can arrange columns of text, provide typographical control, draw shapes, and other effects.


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These disks contain Hardware and Graphics tests from 1990 for Microsoft Windows 2, and OS/2 1.x Presentation Manager.


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PC/DACS is a system utility that adds password protected access control to a computer. It support session timeout, usage time restrictions, boot protection, system drive encryption, and GUI tools for all administrative tasks.


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Interactive UNIX, also known as PC/IX, and 386/ix were UNIX derivitives created for the IBM PC in the early 1980's. PC/IX was the first UNIX sold directly from IBM, but not the first UNIX sold for the IBM PC. (Venix/86 was the first.) The original PC/IX software sold was on 19 floppy disks and sold for 900 dollars. In 1985, 386/ix was introduced, later named Interactive UNIX. The last version released was 4.1.1 in July 1998 and was supported up until 2006.


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Pmcomm is an easy to use personal telecommunications program for IBM OS/2. Supports powerful features such as scripting.


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Powerchute is a utility for use with American Power Conversion Corporation (APC) battery backup power supplies.


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QNX is a compact Unix-like real-time operating system that was originally designed for the IBM PC and later used in embedded devices. The versions here are for IBM PC compatibles.


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Red Hat Linux was a popular early Linux distribution, that was made available as a boxed set available in stores.


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RISC OS is an operating system designed to run on the ARM chipset.