The Carcinagenics are included only for scale.  The Heatsinked box on the right is the electronics driver for Mel Bartel's SCOPE program.  Mel did a great job on this software, and continues to improve it with regular updates, bugfixes, and maintenance of his web site.  The Hand Paddle was once a Wireless Mouse from a CalComp Digitizer Tablet.  Almost all the stuff you can find everywhere.  The Battery comes from a large Uninterruptible Power Supply from a computer room. The Charger/Regulator attached to the 12 Volt / 7 Amp Hour battery provides the +5 V for the electronics, and regulates the recharge of the battery.  The little project boxes are cheap enough to splurge.