9 electronic apparatus, namely, computers, motion and timing sensors, networks comprised of computer hardware, operating system software, monitors, keyboards, man/machine computer interfaces and related computer software for use in monitoring and managing surface traffic movement primarily for use at airports; interface electronic apparatus, namely, computers, networks comprised of computer hardware, operating system software, monitors, keyboards, modems, concentrators of numerical data lines, and computer interface boards, and related computer software for use in receiving data to be used in monitoring and managing surface traffic movement, primarily for use at airports; electronic apparatus, namely, computers, networks comprised of computer hardware, operating system software, monitors, keyboards, modems, concentrators of numerical data lines and related computer software for use in processing data relating to surface traffic movement and related storing and reading-out means, namely, computers, man/machine computer interfaces and operating system computer software; electronic apparatus and related software for displaying and visualizing information about surface traffic and their electronic peripherals, namely, man/machine computer interfaces, computer monitors, video monitors, computer keyboards, laser pointers for pointing on an image; alerting electronic apparatus, namely, computers, networks comprised of computer hardware, operating system software, monitors, keyboards, modems, concentrators of numerical data lines, and related operating system computer software and related software for controlling surface traffic, primarily for airports