Updated: 04/09/2024 by Computer Hope

Sierra may refer to any of the following:

1. When describing a game publisher, Sierra is short for Sierra Entertainment. See our Sierra company page for further information on this company.

2. With an operating system, Sierra was the codename for macOS 10.12.

3. When describing a supercomputer, Sierra or ATS-2 is the name given to the Lawrence Livermore National Laboratory supercomputer used by the National Nuclear Security Administration.

High Sierra