Operating Systems

Operating Systems

1. windows

   • In June 1980, Gates and Allen hire Gates’ former Harvard classmate Steve Ballmer to help run the company. The next month, IBM approaches Microsoft about a project code-named "Chess." In response, Microsoft focuses on a new operating system—the software that manages, or runs, the computer hardware and also serves to bridge the gap between the computer hardware and programs, such as a word processor. It’s the foundation on which computer programs can run. They name their new operating system "MS‑DOS."

2. Mac OS X

   • On January 24, 1984, Apple Computer Inc. (now Apple Inc.) introduced the Macintosh personal computer, later retroactively renamed to the Macintosh 128K model. The operating system of early Macintosh is named "System Software" or "System", and its ensuing series was later renamed to Mac OS after System 7.[1] The Macintosh platform is generally credited with having popularized the early concept of the graphical user interface, the main recognizable aspect of Mac OS.

3. Linux

   • n 1991 with the commencement of a personal project by Finnish student Linus Torvalds to create a new free operating system kernel. Since then, the resulting Linux kernel has been marked by constant growth throughout its history. Since the initial release of its source code in 1991, it has grown from a small number of C files under a license prohibiting commercial distribution to the 3.10 version

4. UNIX

   • Since it began to escape from AT&T's Bell Laboratories in the early 1970's, the success of the UNIX operating system has led to many different versions: recipients of the (at that time free) UNIX system code all began developing their own different versions in their own, different, ways for use and sale. Universities, research institutes, government bodies and computer companies all began using the powerful UNIX system to develop many of the technologies which today are part of a UNIX system.

5. Android

   • he version history of the Android mobile operating system began with the release of the Android beta in November 2007. The first commercial version, Android 1.0, was released in September 2008. Android is under ongoing development by Google and the Open Handset Alliance , and has seen a number of updates to its base operating system since its initial release.

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