SELinux

See the following -

Is GitHub Government’s Next Big Thing?

Luke Fretwell | FedScoop | June 6, 2012

With recent attempts from the White House to bring a more agile approach to government technology, U.S. Chief Information Officer Steven VanRoekel’s “Shared First” initiative, released in December, coupled with the federal government’s new digital strategy, the door may slowly be opening to a more widespread public sector collaborative coding environment, such as the one provide by San Francisco-based startup GitHub.

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Why the Operating System Matters Even More in 2017

Operating systems don't quite date back to the beginning of computing, but they go back far enough. Mainframe customers wrote the first ones in the late 1950s, with operating systems that we'd more clearly recognize as such today—including OS/360 from IBM and Unix from Bell Labs—following over the next couple of decades. An operating system performs a wide variety of useful functions in a system, but it's helpful to think of those as falling into three general categories. First, the operating system sits on top of a physical system and talks to the hardware. This insulates application software from many hardware implementation details...