Was developed by Apple Inc. The OS was introduced in 1984 to run the company's Macintosh line of personal computers (PCs). The Macintosh signaled the era of graphical user interface (GUI) systems, which prompted the creation of the Windows OS from Microsoft Corporation. This OS was heavily marketed by its intuitive ease of use. The Mac OS was unlike most other contemporary PCs because they focused on agraphically based design where users moved a mouse pointer to visually navigate the FInder - a series of virtual folders and files , represented by icons. Most computer OS eventually adopted this GUI, including an agreement in the 1980s that allowed Microsoft to use certain aspects of the Mac OS in early versions of Windows.
Windows OS, computer operating system was developed by Microsoft Corporation to run personal computers. The first version of Windows, released in 1985, was simply a GUI offered as an extension of Microsoft's existing disk operating system, or MS-DOS. Windows for the first time allowed DOS users to visually navigate a virtual desktop, opening graphical "windows" displaying the contents of electronic folders and files with the click of a mouse button, rather than typing commands and directory paths at a text prompt. Later versions introduced greater functionality, including native Windows File Manager, Program Manager, and Print Manager programs, and a more dynamic interface. Microsoft also developed specialized Windows packages, including the networkable Windows for Workgroups and the high-powered Windows NT, aimed at businesses.
In 1991, while studying computer science at University of Helsinki, Linus Torvalds begana project that later became the Linux kernel. He wrote the program specifically for the hardware he was using and independent of an operating system because he wanted to use the functions of his new PC with an 80386 processor. Development was done on MINIX using the GNU C Compiler. The GNU C Compiler is still the main choice for compiling Linux today, but can be built with other compilers, such as the Intel C Compiler.
No lines are longer than 80 characters, TYVM. Other specified properties aren't being scored automatically at this time so this is not necessarily good news...