Operating Systems

Operating Systems

1. What is an operating system?

   • An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs

2. Most famous operating systems

   • Windows
     • Microsoft Windows, or simply Windows, is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry with the OS typically associated with IBM PC compatible architecture.
     • There are many types of Windows
   • Mac
     • MacOS, previously Mac OS X and later OS X is the current series of Unix-based graphical operating systems developed and marketed by Apple Inc. designed to run on Apple's Macintosh computers ("Macs"). It has been preinstalled on all Macs since 2002. Within the market of desktop, laptop and home computers, and by web usage, it is the second most widely used desktop OS after Microsoft Windows.
   • Linux
     • Linux is a name which broadly denotes a family of free and open-source software operating system distributions built around the Linux kernel.

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