3. providing a platform for software developers to write applications.
All computing devices require an operating system. The most popular operating systems for personal computers are: Microsoft Windows, Apple’s Mac OS, and various versions of Linux. Smartphones and tablets run operating systems as well, such as iOS (Apple), Android (Google), Windows Mobile (Microsoft), and Blackberry. Microsoft provided the first operating system for the IBM-PC, released in 1981. Their initial venture into a Graphical User Interface (GUI) operating system, known as Windows, occurred in 1985. Today’s Windows 10 supports the 64-bit Intel CPU. Recall that “64-bit” indicates the size of data that can be moved within the computer. Apple introduced the Macintosh computer 1984 with the first commercially successful GUI. Apple’s operating system for the Macintosh is known as “Mac OS” and also uses an Intel CPU supporting 64-bit processing. Mac OS versions have been named after mountains such as El Capitan, Sierra, and High Sierra. Multitasking, virtual memory, and voice input have become standard features of both operating systems. The Linux operating system is open source, meaning individual developers are allowed to make modifications to the programming code. Linux is a version of the Unix operating. Unix runs on large and expensive minicomputers. Linux
develop Linus Torvalds, a professor in Finland and the creator of Linux, wanted to find a way to make Unix run on less expensive personal computers. Linux has many variations and now powers a large percentage of web servers in the world.
Linux Ubuntu desktop
Information Systems for Business and Beyond (2019) pg. 46
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