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MS-DOS's release date was in 1981. This was the first major operating system to exist. This was also the most widely used operating system in the world at a time. Had the first interface in an operating system. Lots of updates were released for MS-DOS.
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This was one of the first operating systems with a GUI. First Windows release with GUI, first Windows release ever. Was a shell for MS-DOS. A graphical interface for MS-DOS
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Was released before Mac OS, very popular operating system. Lots of distributions to match the owner of the operating system.Very popular to have on a disk partition.
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Was a basic usable GUI operating system. It was a popular operating system for the people who could afford to pay the premium. Lots of updates since release, was not very popular due to the cost of the computers. Was released only 17 years ago.
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Was a extremely popular operating system because it was implemented on the first usable smartphone. was very good if you could pay the premium for the phone or the operating system. Still is very popular if you can afford it.
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Very recent release of an operating system, very good for productivity and is very simple. Very popular among schools because computers running the operating system are relatively cheap priced. Google's first desktop operating system.
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Extremely popular operating system because it is open source and the smartphones with it can be very cheap and affordable compared to IOS. Can offer lots of operating system customization options and is a very good and reliable operating system for lots of people as it is the most used operating system in the world today for smartphones. Very recent operating system as well.
