OS- Operating Systems

An operating system (sometimes abbreviated as "OS") is the program that, after being initially loaded into the computer by a boot program, manages all the other programs in a computer. The other programs are called applications or application programs. The application programs make use of the operating system by making requests for services through a defined application program interface (API). In addition, users can interact directly with the operating system through a user interface such as a command language or a graphical user interface (GUI).
There Are Few Famous Operating Systems--

• MS Windows
• MINIX
• UNIX
• LINUX
• MAC
• Solaris
• MS-DOS
• Amiga
• Java OS