Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, supervision, life- saving and teaching apparatus and instruments, namely, single board computers, computer on module, namely, complete embedded computers built on a single circuit board, microcomputer memory module, system on module, namely, a board level circuit that integrates a system function in a single module, module for internet of things (IoT) enabled devices consisting o...