Is there anyone else who thinks the way the Matrix works is utterly ludicrous, and, as described, impossible? Using coded symbols to describe objects and people in the Matrix simply wouldn't work. You would cut any nerve connections to the senses, hijacking them with the computer socket, which would then be used by the Matrix to send false electronic signals to the brain.
Ie. What you see is an electric signal sent to the brain from the eyes. The Matrix would send false signals, which would be replicas of what your eyes would send you if you were actually seeing it.
The Matrix was crappily thought out, with no weight given to the actual feasibility of what they proposed, and their explanations of how it works. A real Matrix would be like a glorified MUD program, replacing text with electronical impulses, incorporating sight, sounds, smells and touch.
Still a fun movie, nonetheless.