Occam is an imperative procedural parallel programming language, based on Communicating Sequential Processes (CSP) methods, having many of its features. It can be viewed as a practical executable CSP implementation. It is named after William of Ockham, who is credited with stating the philosophy now called Occam's Razor. It was originally developed by INMOS as the native programming language for their Transputer processors. Development is now managed by others, with many versions for other platforms.