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GM-NAA I/O:
This early OS was primarily designed to automatically switch to the next job once its current job was completed by Robert L. Patrick of General Motors. It was used on about fourty IBM 704 mainframes. There is not a price found. -
MCP (Master Control Program)
Developed by Burroughs Corporations for their B5000 mainframe. MCP is still in used today by the Unisys ClearPath/MCP machines. Price do not found. -
Unix
Developed by AT&T Bell Labs programmers Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna. It gained widespread acceptance first within the large AT&T company, and later by colleges and universities. It is written in C, which allows for easier modification, acceptance, and portability. Unix is free. -
MS-DOS
Developed by Microsoft for the IBM PC’s. It was the first widely available Operating Systems for home users. In 1985, Microsoft released Microsoft Windows, which popularized the Operating System even more. Microsoft Windows allowed users a graphical user interface (GUI), which rapidly spread Microsoft’s product. -
SunOS
Developed by Sun Microsystems, SunOS was based on BSD. It was a very popular Unix variant. Price not found. -
Mac OS
Developed by Apple Computer, Inc for their new product, the Macintosh home PC. The Macintosh was widely advertised (the famous 1984 commercial is available below). Mac OS was the first OS with a GUI built-in. This lead to a very stable OS, as well as wide acceptance due to its ease of use. From $90 to $200, depends on the store. -
Linux
Developed by Linus Torvalds as a free Unix variant. Linux today is a very largely contributed Open Source project that plays a very prominant role in today’s server industry. It's price is much lower than Windows or it is usually free. -
Windows NT
Developed by Microsoft as a high-end server Operating System, the NT code became the basis for Operating Systems to this day. NT was primarily used on computers used as servers to counter the Unix dominance in the arena. From $150 to $314. -
Windows95
Developed by Microsoft, it was the first Microsoft Operating system to have a graphical user interface built into it. It was tremendously marketed (successfully) and quickly swept across the country and the globe. It is available in $209. -
JavaOS
Developed by Sun Microsystems, JavaOS was developed primarily using the Java programming language. The OS was created to be installed on any device, including PC’s. Shareware prce: $19.95. -
MacOS X Server 1.0
Developed by Apple Computer, Inc., MacOS X Server 1.0 was a precursor to Apple’s MacOS X desktop version, which replaced it in 2001. MacOS X Server 1.0 was developed for Apple’s popular Macintosh PC. Price: $499. -
Windows 2000
Developed by Microsoft, Windows 2000 was a much improved Operating System over Windows 98. It was developed from a dramatically different code base. It was targetted for business oriented uses. Price: $108.9. -
WindowsXP
Developed by Microsoft, Windows XP was an enhanced version of Windows 2000 code base. XP became widely popular and is used extensively today, despite the release of Windows Vista. Price: $59.99. -
MacOS X Version 10.0
Developed by Apple Computer, Inc., MacOS X Version 10.0 dramatically changed the user interface for Apple’s Macinstosh users. Price: $129. -
Windows Vista
Developed by Microsoft, Windows Vista has been slow in taking off. However, Microsoft has enacted various marketing gimmicks, such as making XP a more expensive alternative for end users, to push users into their latest OS. Between $50.00 - $150.00 US dollars per each license copy.
