- Mastering macOS Programming
- Stuart Grimshaw
- 53字
- 2025-04-04 19:10:23
How Unix, macOS, Cocoa, and AppKit fit together
In the beginning, there was Unix, developed by AT&T in the 1970s and initially intended for use inside the Bell system. Toward the end of that decade, the University of California, Berkeley, released a modified--and free--version of it, called Berkeley Software Distribution (BSD).