9 Magnetic data carriers; data processing equipment, namely computers and microprocessors; computer hardware; computer peripherals; ruggedized electronic data storage devices, namely, disk drives and non-volatile electronic memories; ruggedized computer hardware, namely, printers, keypads, displays, peripherals and parts therefor; protective housings for computer equipment and parts therefor; cable harnesses and cable assemblies; electronic circuit boards; flexible printed circuits; electro-optical and electromagnetic scanning system drives and controls; electronic controls for electronic motors; stepping motors; brushless direct-current electronic motors; electric actuators and position sensors, namely, linear electric actuators, rotary electric actuators, linear electronic position encoders, rotary electronic position encoders, electromagnetic position encoders, electro-optical position encoders; anti-shock and anti-vibration mountings, hermetic and electromagnetic-compatability hardened enclosures, all for electronic and electrical circuit boards, gyroscopes, visual display units, magnetic disk drives and computer hardware