Electrical and electronic circuits; Backplanes for use with digital electronic circuit boards and backplanes for use with multiple digital electronic circuit boards; Digital electronic devices, namely, board level computers and controllers and input/output expansion boards, prototyping boards, embedded control boards; Industrial automation and control boards and modules; Computer hardware and computer peripherals; Industrial control systems, namely, embedded control apparatus, rapid development hardware for embedded control systems; Sensors and actuators; Customized OEM control boards, embedded control OEM apparatus; expansion boards and mezzanine boards, ready-to-use enclosures, keypads, LCDs, electrical cables, sockets and accompanying instruction manuals, sold together as a unit; Compact computer programming language modules providing on-board processor, memory and native execution of programming code; and, computer firmware and software for use by computer programmers, namely, compilers and cross-compilers, interpreters, linkers, assemblers, debuggers and development software; and accompanying instruction manuals, sold together as a unit