The Dock
The macOS Dock app originated in macOS’s early OS precursor NeXTStep and OpenStep, which were created at Steve Jobs’ other company, NeXT Computer. In 1997 Apple bought NeXT and acquired the NeXT technology along with it.
NeXTStep was modified by Apple and in 2000 Apple re-released it as Mac OS X – which merges most of the core of NeXTStep (which became Darwin in macOS) with features and filesystems from Apple’s older Mac OS 9.
Go Here to Read this Fast! How to hide all but your open apps in macOS Dock
Originally appeared here:
How to hide all but your open apps in macOS Dock