16bitのメモリ付き累算器？
Memory + Accumulator = New Plan

We finally completed work on the 16-bits of Data Memory, and attached it to the Accumulator. The final result is a rather attractive looking tower of K’NEX. The dimensions of it are almost exactly 1′ x 4′ x 9′ (an interesting coincidence for anyone who has read “2001: A Space Odyssey”).

wow