Just a year later a new trend was born as Mac OS versions were named after geographic locations and features starting with Yosemite, then going into names like Sierra, Mojave, and Big Sur. This trend went on for just over a decade until version 10.9 released with the name “Mavericks”. naming the operating systems after big cats, where the company also iterated through version names like Lion, Snow Leopard, and Tiger. Cheetah also started the trend of Apple Inc. The release of 10.0 / Cheetah marked the beginning of the “10.x” series of Mac OS software releases. The famous Finder and System Utilities applications were mainly developed by Steve Capps and Bruce Horn. The operating system’s icons were created by Susan Kare. The main software architect behind Mac OS is Andy Hertzfield, who created much of the original kernel and desktop applications. Mac OS was initially designed with the intent to replace the classic operating system used in the earlier Macintosh computers first developed in the 1980’s. Kodiak was released in the Autumn of 2000 after Apple implemented much of the user feedback they had received from previous iterations, but the public beta license expired in the Spring of 2001 as version 10.0, also called “Cheetah” was released. and Apple computers, the first official reference to Mac OS came with the public beta release version known as “Kodiak”. Although there are earlier operating systems associated with Apple Inc. Mac OS is the original proprietary operating system of Apple Inc., the company founded by Steve Jobs, Steve Wozniak, and Ronald Wayne in 1976. The developers of the Mac OS all gathered for a photo.

Mac operating system history