OpenCL Definition Stands for "Open Computing Language." OpenCL is an open standard for cross-platform, parallel programming. It was originally developed by Apple in 2008 and is now maintained by the Khronos Group. The first major operating system to support OpenCL was Snow Leopard (Mac OS X 10.6), which was released in 2009. OpenCL provides an API that allows software programs to access multiple processors simultaneously to perform parallel processing. Examples include CPUs, GPUs, digita...