Topic summary
OPENSTEP for Mach
Extracted from the Wikipedia article NeXTSTEP.
NeXTSTEP is a discontinued object-oriented, multitaskingoperating system developed by NeXT, the technology company founded by Steve Jobs. Based on the Mach kernel and the UNIX-derived BSD, it was introduced in 1989 for the company's computers before being ported to several other computer architectures. Following NeXT's transition away from hardware, version 4 was released as OPENSTEP for Mach, named after the company's OpenStep application programming interface (API).