A fundamental overview of operating systems (OSes) with an emphasis on practice. Topics covered include: OS structure, OS models, OS abstractions, concurrency sources, concurrency challenges, ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Doretha Clemons, Ph.D., MBA, PMP, has been a ...

A NeXTcube computer running the NeXTSTEP operating system. Simon Claessen / Flickr Today marks the 35th anniversary of the launch of NeXTSTEP, a computer operating system launched by Steve Jobs during ...