Before revision: Two notable series of American tagged architectures were the Lisp machines, which had tagged pointer support at the hardware and opcode level, and the Burroughs large systems, which had a data-driven tagged and descriptor-based architecture .
After revision: Notable examples of American tagged architectures were the Lisp machines, which had tagged pointer support at the hardware opcode level, and the Burroughs large systems, which had a data-driven tagged and descriptor-based architecture .