Computer systems, peripherals and equipment, namely controllers and controller cards used to improve disk performance, error recovery, fault tolerance, data storage and data mirroring, hard disks, magnetic read/write equipment, namely, compact disc rewritable (CD-RW), disk read-write head, tape drive, blank magnetic data carriers; terminals, servers, scanners, keyboards, printers, disk drives, computer micro processors, computer memory, namely, memory cards, memory sticks, random access memory chips, read only memory chips, blank computer discs; microprocessor chips, touchpads, modems, computer cursor control devices, namely mouse; optical disk drives, data storage equipment, namely, blank computer discs, blank magnetic tapes, storage block, storage register; network cards, interface cards, video cards, uninterrupted power suppliers, power suppliers, audio cards, multiplexes, network hubs, signal converters, routers, bridges, network switches, filters, adapters, multi-processor computers, computer mother boards, computer set-top boxes, housings, workstations, storage boxes, notebook computers, desktop computers, handheld computers, pc-tv's, computer add-on cards; surveillance systems, namely, video cameras, electronic locks, electronic motion sensors; digital video recorders, computer software for use in database integration and management, data compression