Just thought I would share these links to two old sharp calculator commercials
http://www.archive.org/movies/details-db.php?collection=prelinger&collectionid=sharp_calculator
http://www.archive.org/movies/details-db.php?collection=prelinger&collectionid=sharp_calculator_2
Commercial for the Sharp LC-8 (aka Sharp EL-8) calculator the world's first battery operated portable calculator
In case the links don't work just go to archive.org and search in the prelinger archive for calculator