|Latest release||1.6.8 / October 5, 2004|
|Platforms||Intel 80386, Motorola 68030|
|Default user interface||Graphical user interface|
|License||GNU General Public License|
VSTa (Valencia's Simple Tasker) was an operating system with a microkernel architecture, with all device drivers and file systems residing in userspace mode. It is mostly POSIX compliant, except when POSIX compatibility got in the way of extensibility and modularity. It was conceptually inspired by QNX and Plan 9. Written by Andy Valencia, and released under the GPL license. Currently the licensing for VSTa is Copyleft.
VSTa is no longer developed, a fork called Flexible Microkernel Infrastructure/Operating System (FMI/OS) did not make a release.
- "Code Unatio". 2011-07-23. Retrieved 2017-06-16.
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