Computer installation and repair; Installation of computer networks; Installation of computer systems; Installation of security system; Maintenance and repair of computer hardware; Maintenance and repair of computer networks; Maintenance of computer hardware; Repair of damaged computers; repair or maintenance of computers; Repair or maintenance of telecommunication machines and apparatus; Updating of computer hardware; Upgrading of computer hardware

Equipment for the recording, transmission and reproduction of sound or pictures, namely, data media, blank magnetic data carriers, blank and prerecorded CD-ROMS and optical discs; calculators; data processing equipment, namely, computers, computer hardware and computer peripherals