As we have recently analyzed how the Bitcoin P2P Network works, let's delve into arguably its most important software component - the Bitcoin Core, the reference client and the reference implementation of all aspects of the Bitcoin system. With the main goal of having a few questions answered...| binaryigor.com
Bitcoin uses a scripting system for transactions. Forth-like, Script is simple, stack-based, and processed from left to right. It is intentionally not Turing-complete, with no loops.| en.bitcoin.it