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Who created the Mac operating system and when?
Mac OS, operating system (OS) developed by the American computer company Apple Inc. The OS was introduced in 1984 to run the company’s Macintosh line of personal computers (PCs).
What is the oldest macOS?
It was first released in 1999 as Mac OS X Server 1.0, with a widely released desktop version—Mac OS X 10.0—following in March 2001.
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Releases.
| Version | macOS 10.15 |
|---|---|
| Processor support | 64-bit Intel |
| Application support | 64-bit Intel |
| Kernel | 64-bit |
| Date announced | June 3, 2019 |
