Analytical Engine; Bletchley Park; card; CCS; Difference Engine; Gottlob Frege; Great Renaming; Harvard Mark II Machine; history; Hunt the Wumpus; Iron Age; IT; Jacquard loom; magnetostrictive delay line; Manchester Autocode; mercury delay line; paper tape; PEARL; Plankalkül; punched card; SCALLOP; Simultaneous Peripheral Operation On-Line; TYMNET; VisiCalc /vi'zi-calk/;