Electronic and pneumatic controls for surgical and medical devices and apparatus; data processors; data display units, namely, computer monitors, optical sensors, cameras, video multiplexers, drivers and communications apparatus consisting of digital boards or serial interfaces; data input and output devices apparatus for computers, namely, printers, facsimile machines, scanners, plotters, machine readable information, blank data carriers, namely, tapes, cards, CD-ROMS and disks, display and ...