Evaluations et estimations dans les domaines scientifiques et technologiques rendues par des ingénieurs; recherches scientifiques et techniques; conception et développement d'ordinateurs et de logiciels; études de projets techniques; élaboration (conception), installation, maintenance, mise à jour ou location de logiciels; programmation pour ordinateurs; analyse de systèmes informatiques; conception de systèmes informatiques; logiciel-service (SaaS); informatique en nuage; conseils en technologie de l'information; hébergement de serveurs; stockage électronique de données.

Technical evaluations concerning design (engineers' services); scientific research; technical research; design of computers for others; computer development; software design; software development; research and development of new products for others; conducting of technical project studies; architecture; design of interior decor; software development (design); software installation; software maintenance; updating of software; software rental; programming for computers; computer system analysis; computer system design; services provided by consultants relating to computer hardware design and development; digitization of documents; software as a service (SaaS); cloud computing; information technology (IT) consultancy; hosting of servers; vehicle roadworthiness testing; graphic arts design services; styling (industrial design); authentication of works of art; energy auditing; electronic data storage.

Production of radio and television programmes; television entertainment; game services provided on-line from a computer network; production of videos; providing on-line electronic publications, not downloadable; teaching; arranging and conducting of congresses; providing television programmes via video-on-demand transmission (undownloadable); games equipment rental; videotapes publishing services.

Rental of memory areas of servers for social networking on the Internet to interact with other users; rental of memory areas of servers on the Internet for data storage; back-up services for computer systems; rental of memory areas of servers for electronic bulletin boards on Internet; rental of memory areas of servers for blogs on Internet; providing meteorological information; architectural design; surveying; geological surveys or research; designing of machines, apparatus, instruments (including their parts) or systems composed of such machines, apparatus and instruments; designing; computer software design, computer programming, or maintenance of computer software; technical advice relating to computers; design of machines, apparatus and instruments; testing, inspection or research of pharmaceuticals, cosmetics or foodstuff; research on building construction or city planning; testing or research on prevention of pollution; testing or research on electricity; testing or research on civil engineering; testing, inspection or research on agriculture, livestock breeding or fisheries; testing or research on machines, apparatus and instruments; rental of measuring apparatus; rental of computers; providing computer program; rental of laboratory apparatus and instruments; rental of drawing instruments; providing computer programs on line; providing search engines on Internet; creating or updating electronic bulletin boards or homepages on Internet; providing the information on creating electronic bulletin boards or homepages on Internet; rental of Internet server areas; creating and designing and maintaining web sites for others in computer networks; quality control services; providing the information on donation of human corpses for medical research; arranging of donation of human corpses for medical research.

Material processing.

Education, entertainment, sports and cultural activities.

Scientific and technological services and related research and design, analysis and research services in the industry.

Construction; repair services relating to parts and components of or for telecommunication and telecommunication technology; repair services relating to scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, testing, life-saving and teaching apparatus and instruments, apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling of electricity, apparatus for recording, transmitting and reproducing of sound and images; repair services relating to magnetic data carriers, sound recording discs, CDs, DVDs and other digital recording media, mechanisms for coin-operated apparatus, cash registers, calculating machines, data processing hardware, computers, computer software, recorded data, databases, recorded media, software, game software, firmware, computer operating systems, information technology, audiovisual, multimedia and photographic apparatus, communication equipment, computer network and data communication apparatus and equipment, point-to-point communication apparatus, radio apparatus and equipment, antennae and antennae systems as communication apparatus; repair services relating to data storage devices, replication apparatus, image scanners, printers, data processing devices and equipment as well as accessories [electrical and mechanical], electronic calculators, computer peripherals, computers and computer hardware, computer components and parts, audio and visual as well as photographic apparatus, audio apparatus and radio receivers, electronic display units, television receivers as well as film and video apparatus, image acquisition and development apparatus, signal lines for IT, audiovision and telecommunication; repair services relating to magnets, magnetizers and demagnetizers, scientific apparatus and laboratory apparatus for physical reactions using electricity, apparatus, instruments and cables for electricity, apparatus and instrument for accumulating and storing electricity, apparatus and instruments for controlling electricity, photovoltaic installations for generating electricity, electric and electronic components, cables and wires, electric circuits and electrical circuit boards, antennae and antenna systems as components, optical apparatus and equipment, amplifiers and correctors, optical amplifiers, lasers, not for medical purposes, securing, safety and signalling apparatus, alarm and warning equipment, access control apparatus, signalling apparatus, protective and safety equipment, navigation, orientation, tracking, target tracking and mapping devices, measuring, detecting and monitoring instruments, appliances and regulators, monitoring instruments and apparatus, sensors and detectors, testing and quality control apparatus, measuring, counting, aligning and calibration instruments, control apparatus [regulators], apparatus for scientific research and laboratory, teaching apparatus and instruments, testing apparatus not for medical purposes, armatures [electricity], junction boxes [electricity], connections for electric lines, audiovisual teaching apparatus, limiters [electricity], observation instruments, video telephones, phototelegraphy apparatus, chips [integrated circuits], magnetic encoders, computer hardware, computer peripheral devices, data processing apparatus, digital signs, electrical adapters, electricity conduits, collectors, electric, contacts, electric, couplings, electric, regulating apparatus, electric, conductors, electric, ducts [electricity], measuring devices, electric, relays, electric, electric apparatus for commutation, monitoring apparatus, electric, not for medical purposes, resistances, electric, wires, electric, cables, electric, masts for wireless aerials, printed circuit boards, printed circuits, computer operating programs, recorded, computer programs, recorded, computer software, recorded, semi-conductors, holders for electric coils, computer programs, downloadable, electronic publications, downloadable, computer software applications, downloadable, high-frequency apparatus, integrated circuits, interfaces for computers, copper wire, insulated, identification threads for electric wires, identification sheaths for electric wires, wire connectors [electricity], sheaths for electric cables, switchboxes [electricity], terminals [electricity], coaxial cables, lasers, not for medical purposes, light-emitting diodes [LED], magnetic data media, magnetic tape units for computers, magnetic tapes, materials for electricity mains [wires, cables]; repair services relating to measuring instruments, plane tables [surveying instruments], microprocessors, modems, optical apparatus and instruments, optical data media, fiber optic cables, optical fibers [light conducting filaments], optical condensers, optical lamps, optical discs, mirrors [optics], apparatus and instruments for physics; repair services relating to control panels [electricity], switches, electric, distribution consoles [electricity], transmitting sets [telecommunication], transmitters of electronic signals, transmitters [telecommunication], electric sockets, covers for electric outlets; repair services relating to circuit closers, circuit breakers, telephone wires, telephone transmitters, telegraph wires, telegraphs [apparatus], telephone receivers, audio- and video-receivers, sound transmitting apparatus, transponders, junction sleeves for electric cables, connectors [electricity], distribution boxes [electricity], distribution boards [electricity], apparatus for recording, transmitting and reproducing data, apparatus, instruments as well as passive and active light wave guide technology components, wave length mulitplexers and wave length demultiplexers, fiber reinforcers, optical receiving diodes, optical frequency measuring apparatus, optical apparatus for laboratories; repair services relating to measuring, detecting and monitoring instruments, appliances and regulators, display devices [electric], digital display devices, electro-optical transducers, electronic control instruments, high-frequency transducers, wireless controls for remote monitoring as well as function and status control of their electric, electronic or mechanical apparatus or systems, control apparatus and instruments, laser diodes, wireless switches, electric frequency converters, electric apparatus for controlling the electrical performance, electrical switching apparatus, image transmission apparatus and devices, digital telecommunication apparatus, wired communication apparatus, wireless communication apparatus, wireless transmitters and receivers, electric communication apparatus, fiber-optical telecommunication apparatus and devices, apparatus and devices for wireless transmission of data, images or sound, network communication apparatus, multiplexers for telecommunication purposes, optical-digital transmission apparatus, optical data lines, optical communication apparatus and devices, optical couplers, optical switches, optical transmission and reception apparatus, optical and magneto-optical recording media, information technology and audiovisual apparatus and components for providing, distributing and securing time, phase, frequency and clocking information, particularly for synchronising communication and power networks, computer hardware for telecommunication, data transmission apparatus, demultiplexers, metal electric cables, radio wave transmission systems, data communication apparatus, data transmission cables, optical waveguides, multiplexers, optical transmitters, optical receivers, signal amplifying apparatus and devices, network interface transceivers, optical waveguide transceivers for use in networks, fiber-optical repeaters, converters and optimizers, optical free space transmission systems [communication], namely transmission and reception apparatus, optical directional radio systems [communication], namely transmission and reception apparatus, switches, including ethernet switches and routers, fiber-to-the home and Ethernet-over-VDSL [very high speed digital subscriber line] aggregators, terminators or repeaters, presence management products, in particular remote presence management, electric control panels, alarms, sensor and energy management apparatus, apparatus and appliances for treating and/or compensating optical dispersion, optical multiplexers, optical amplifiers, optical, in particular electro-optical transducers [optical converters], linecards [communication], in particular optical linecards for processing optical signals or other linecards, optical transponders, multiplex transponders [muxponders], ethernet service modules for ethernet switching and networking, CWDM [coarse wavelength division multiplexing] transmitters, dispersion compensation modules, in particular pulse compression apparatus, DWDM [dense wavelength division multiplexing] transmitters, optical network systems, optical network management and administration equipment [network communication apparatus], optical transmission systems consisting of transmitters, receivers, amplifiers and other signal processing apparatus, analogue-digital converters, transceivers, multiplexer amplifiers, telecommunication apparatus, instruments, systems and networks as well as parts and accessories thereof, computer systems as well as parts and accessories thereof, computer networks, local area networks [LANs], installation cables [telecommunication], plug cords [telecommunication], cable plugs [telecommunication], direct connection cables [telecommunication], adapters and small distribution boards [telecommunication], cables for transmitting data [pigtails], conducts in form of cable channels and other cable holders [telecommunication], passive and active network components [telecommunication] [network communication networks], transceivers [telecommunication], transmitters, receivers, apparatus, namely modems, for applying modulation processes, in particular PAM4, QPSK, PM-QPSK and QAM, coherent detection apparatus, Forward Error Correction apparatus; installation services relating to telecommunication and telecommunication technology and scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, testing, life-saving and teaching apparatus and instruments, apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling of electricity, apparatus for recording, transmitting and reproducing of sound and images; installation services relating to magnetic data media, sound recording discs, CDs, DVDs and other digital recording media, mechanisms for coin-operated apparatus, cash registers, calculating machines, data processing hardware, computers, computer software, recorded data, databases, recorded media, software, game software, firmware, computer operating systems, information technology, audiovisual, multimedia and photographic apparatus, communication equipment, computer network and data communication apparatus and equipment, point-to-point communication apparatus, radio apparatus and equipment, antennae and antennae systems as communication apparatus; installation services relating to data storage devices, replication apparatus, image scanners, printers, data processing devices and equipment as well as accessories [electrical and mechanical], electronic calculators, computer peripherals, computers and computer hardware, computer components and parts, audio and visual as well as photographic apparatus, audio apparatus and radio receivers, electronic display units, television receivers as well as film and video apparatus, image acquisition and development apparatus, signal lines for IT, audiovision and telecommunication; installation services relating to magnets, magnetizers and demagnetizers, scientific apparatus and laboratory apparatus for physical reactions using electricity, apparatus, instruments and cables for electricity, apparatus and instrument for accumulating and storing electricity, apparatus and instruments for controlling electricity, photovoltaic installations for generating electricity, electric and electronic components, cables and wires, electric circuits and electrical circuit boards, antennae and antenna systems as components, optical apparatus and equipment, amplifiers and correctors, optical amplifiers, lasers, not for medical purposes, securing, safety and signalling apparatus, alarm and warning equipment, access control apparatus, signalling apparatus, protective and safety equipment, navigation, orientation, tracking, target tracking and mapping devices, measuring, detecting and monitoring instruments, appliances and regulators, monitoring instruments and apparatus, sensors and detectors, testing and quality control apparatus, measuring, counting, aligning and calibration instruments, control apparatus [regulators], apparatus for scientific research and laboratory, teaching apparatus and instruments, testing apparatus not for medical purposes, armatures [electricity], junction boxes [electricity], connections for electric lines, audiovisual teaching apparatus, limiters [electricity], observation instruments, video telephones, phototelegraphy apparatus, chips [integrated circuits], magnetic encoders, computer hardware, computer peripheral devices, data processing apparatus, digital signs, electrical adapters, electricity conduits, collectors, electric, contacts, electric, couplings, electric, regulating apparatus, electric, conductors, electric, ducts [electricity], measuring devices, electric, relays, electric, electric apparatus for commutation, monitoring apparatus, electric, not for medical purposes, resistances, electric, wires, electric, cables, electric, masts for wireless aerials, printed circuit boards, printed circuits, computer operating programs, recorded, computer programs, recorded, computer software, recorded, semi-conductors, holders for electric coils, computer programs, downloadable, electronic publications, downloadable, computer software applications, downloadable, high-frequency apparatus, integrated circuits, interfaces for computers, copper wire, insulated, identification threads for electric wires, identification sheaths for electric wires, wire connectors [electricity], sheaths for electric cables, switchboxes [electricity], terminals [electricity], coaxial cables, lasers, not for medical purposes, light-emitting diodes [LED], magnetic data media, magnetic tape units for computers, magnetic tapes, materials for electricity mains [wires, cables]; installation services relating to measuring instruments, plane tables [surveying instruments], microprocessors, modems, optical apparatus and instruments, optical data media, fiber optic cables, optical fibers [light conducting filaments], optical condensers, optical lamps, optical discs, mirrors [optics], apparatus and instruments for physics; installation services for control panels [electricity], switches, electric, distribution consoles [electricity], transmitting sets [telecommunication], transmitters of electronic signals, transmitters [telecommunication], electric sockets, covers for electric outlets; installation services relating to circuit closers, circuit breakers, telephone wires, telephone transmitters, telegraph wires, telegraphs [apparatus], telephone receivers, audio- and video-receivers, sound transmitting apparatus, transponders, junction sleeves for electric cables, connectors [electricity], distribution boxes [electricity], distribution boards [electricity], apparatus for recording, transmitting and reproducing data, apparatus, instruments as well as passive and active light wave guide technology components, wave length mulitplexers and wave length demultiplexers, fiber reinforcers, optical receiving diodes, optical frequency measuring apparatus, optical apparatus for laboratories; installation services relating to measuring, detecting and monitoring instruments, appliances and regulators, display devices [electric], digital display devices, electro-optical transducers, electronic control instruments, high-frequency transducers, wireless controls for remote monitoring as well as function and status control of their electric, electronic or mechanical apparatus or systems, control apparatus and instruments, laser diodes, wireless switches, electric frequency converters, electric apparatus for controlling the electrical performance, electrical switching apparatus, image transmission apparatus and devices, digital telecommunication apparatus, wired communication apparatus, wireless communication apparatus, wireless transmitters and receivers, electric communication apparatus, fiber-optical telecommunication apparatus and devices, apparatus and devices for wireless transmission of data, images or sound, network communication apparatus, multiplexers for telecommunication purposes, optical-digital transmission apparatus, optical data lines, optical communication apparatus and devices, optical couplers, optical switches, optical transmission and reception apparatus, optical and magneto-optical recording media, information technology and audiovisual apparatus and components for providing, distributing and securing time, phase, frequency and clocking information, particularly for synchronising communication and power networks, computer hardware for telecommunication, data transmission apparatus, demultiplexers, metal electric cables, radio wave transmission systems, data communication apparatus, data transmission cables, optical waveguides, multiplexers, optical transmitters, optical receivers, signal amplifying apparatus and devices, network interface transceivers, optical waveguide transceivers for use in networks, fiber-optical repeaters, converters and optimizers, optical free space transmission systems [communication], namely transmission and reception apparatus, optical directional radio systems [communication], namely transmission and reception apparatus, switches, including ethernet switches and routers, fiber-to-the home and Ethernet-over-VDSL [very high speed digital subscriber line] aggregators, terminators or repeaters, presence management products, in particular remote presence management, electric control panels, alarms, sensor and energy management apparatus, apparatus and appliances for treating and/or compensating optical dispersion, optical multiplexers, optical amplifiers, optical, in particular electro-optical transducers [optical converters], linecards [communication], in particular optical linecards for processing optical signals or other linecards, optical transponders, multiplex transponders [muxponders], ethernet service modules for ethernet switching and networking, CWDM [coarse wavelength division multiplexing] transmitters, dispersion compensation modules, in particular pulse compression apparatus, DWDM [dense wavelength division multiplexing] transmitters, optical network systems, optical network management and administration equipment [network communication apparatus], optical transmission systems consisting of transmitters, receivers, amplifiers and other signal processing apparatus, analogue-digital converters, transceivers, multiplexer amplifiers, telecommunication apparatus, instruments, systems and networks as well as parts and accessories thereof, computer systems as well as parts and accessories thereof, computer networks, local area networks [LANs], installation cables [telecommunication], plug cords [telecommunication], cable plugs [telecommunication], direct connection cables [telecommunication], adapters and small distribution boards [telecommunication], cables for transmitting data [pigtails], conducts in form of cable channels and other cable holders [telecommunication], passive and active network components [telecommunication] [network communication networks], transceivers [telecommunication], transmitters, receivers, apparatus, namely modems, for applying modulation processes, in particular PAM4, QPSK, PM-QPSK and QAM, coherent detection apparatus, Forward Error Correction apparatus; installation, cleaning, repair and maintenance services relating to telecommunication and telecommunication technology and scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, testing, life-saving and teaching apparatus and instruments, apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling of electricity, apparatus for recording, transmitting and reproducing of sound and images; installation, cleaning, repair and maintenance services relating to magnetic data media, sound recording discs, CDs, DVDs and other digital recording media, mechanisms for coin-operated apparatus, cash registers, calculating machines, data processing hardware, computers, computer software, recorded data, databases, recorded media, software, game software, firmware, computer operating systems, information technology, audiovisual, multimedia and photographic apparatus, communication equipment, computer network and data communication apparatus and equipment, point-to-point communication apparatus, radio apparatus and equipment, antennae and antennae systems as communication apparatus; installation, cleaning, repair and maintenance services relating to data storage devices, replication apparatus, image scanners, printers, data processing devices and equipment as well as accessories [electrical and mechanical], electronic calculators, computer peripherals, computers and computer hardware, computer components and parts, audio and visual as well as photographic apparatus, audio apparatus and radio receivers, electronic display units, television receivers as well as film and video apparatus, image acquisition and development apparatus, signal lines for IT, audiovision and telecommunication; installation, cleaning, repair and maintenance services relating to magnets, magnetizers and demagnetizers, scientific apparatus and laboratory apparatus for physical reactions using electricity, apparatus, instruments and cables for electricity, apparatus and instrument for accumulating and storing electricity, apparatus and instruments for controlling electricity, photovoltaic installations for generating electricity, electric and electronic components, cables and wires, electric circuits and electrical circuit boards, antennae and antenna systems as components, optical apparatus and equipment, amplifiers and correctors, optical amplifiers, lasers, not for medical purposes, securing, safety and signalling apparatus, alarm and warning equipment, access control apparatus, signalling apparatus, protective and safety equipment, navigation, orientation, tracking, target tracking and mapping devices, measuring, detecting and monitoring instruments, appliances and regulators, monitoring instruments and apparatus, sensors and detectors, testing and quality control apparatus, measuring, counting, aligning and calibration instruments, control apparatus [regulators], apparatus for scientific research and laboratory, teaching apparatus and instruments, testing apparatus not for medical purposes, armatures [electricity], junction boxes [electricity], connections for electric lines, audiovisual teaching apparatus, limiters [electricity], observation instruments, video telephones, phototelegraphy apparatus, chips [integrated circuits], magnetic encoders, computer hardware, computer peripheral devices, data processing apparatus, digital signs, electrical adapters, electricity conduits, collectors, electric, contacts, electric, couplings, electric, regulating apparatus, electric, conductors, electric, ducts [electricity], measuring devices, electric, relays, electric, electric apparatus for commutation, monitoring apparatus, electric, not for medical purposes, resistances, electric, wires, electric, cables, electric, masts for wireless aerials, printed circuit boards, printed circuits, computer operating programs, recorded, computer programs, recorded, computer software, recorded, semi-conductors, holders for electric coils, computer programs, downloadable, electronic publications, downloadable, computer software applications, downloadable, high-frequency apparatus, integrated circuits, interfaces for computers, copper wire, insulated, identification threads for electric wires, identification sheaths for electric wires, wire connectors [electricity], sheaths for electric cables, switchboxes [electricity], terminals [electricity], coaxial cables, lasers, not for medical purposes, light-emitting diodes [LED], magnetic data media, magnetic tape units for computers, magnetic tapes, materials for electricity mains [wires, cables]; installation, cleaning, repair and maintenance services relating to measuring instruments, plane tables [surveying instruments], microprocessors, modems, optical apparatus and instruments, optical data media, fiber optic cables, optical fibers [light conducting filaments], optical condensers, optical lamps, optical discs, mirrors [optics], apparatus and instruments for physics; installation, cleaning, repair and maintenance services relating to control panels [electricity], switches, electric, distribution consoles [electricity], transmitting sets [telecommunication], transmitters of electronic signals, transmitters [telecommunication], electric sockets, covers for electric outlets; installation, cleaning, repair and maintenance of circuit closers, circuit breakers, telephone wires, telephone transmitters, telegraph wires, telegraphs [apparatus], telephone receivers, audio- and video-receivers, sound transmitting apparatus, transponders, junction sleeves for electric cables, connectors [electricity], distribution boxes [electricity], distribution boards [electricity], apparatus for recording, transmitting and reproducing data, apparatus, instruments as well as passive and active light wave guide technology components, wave length mulitplexers and wave length demultiplexers, fiber reinforcers, optical receiving diodes, optical frequency measuring apparatus, optical apparatus for laboratories; installation, cleaning, repair and maintenance services relating to measuring, detecting and monitoring instruments, appliances and regulators, display devices [electric], digital display devices, electro-optical transducer, electronic control instruments, high-frequency transducers, wireless controls for remote monitoring as well as function and status control of their electric, electronic or mechanical apparatus or systems, control apparatus and instruments, laser diodes, wireless switches, electric frequency converters, electric apparatus for controlling the electrical performance, electrical switching apparatus, image transmission apparatus and devices, digital telecommunication apparatus, wired communication apparatus, wireless communication apparatus, wireless transmitters and receivers, electric communication apparatus, fiber-optical telecommunication apparatus and devices, apparatus and devices for wireless transmission of data, images or sound, network communication apparatus, multiplexers for telecommunication purposes, optical-digital transmission apparatus, optical data lines, optical communication apparatus and devices, optical couplers, optical switches, optical transmission and reception apparatus, optical and magneto-optical recording media, information technology and audiovisual apparatus and components for providing, distributing and securing time, phase, frequency and clocking information, particularly for synchronising communication and power networks, computer hardware for telecommunication, data transmission apparatus, demultiplexers, metal electric cables, radio wave transmission systems, data communication apparatus, data transmission cables, optical waveguides, multiplexers, optical transmitters, optical receivers, signal amplifying apparatus and devices, network interface transceivers, optical waveguide transceivers for use in networks, fiber-optical repeaters, converters and optimizers, optical free space transmission systems [communication], namely transmission and reception apparatus, optical directional radio systems [communication], namely transmission and reception apparatus, switches, including ethernet switches and routers, fiber-to-the home and Ethernet-over-VDSL [very high speed digital subscriber line] aggregators, terminators or repeaters, presence management products, in particular remote presence management, electric control panels, alarms, sensor and energy management apparatus, apparatus and appliances for treating and/or compensating optical dispersion, optical multiplexers, optical amplifiers, optical, in particular electro-optical transducers [optical converters], linecards [communication], in particular optical linecards for processing optical signals or other linecards, optical transponders, multiplex transponders [muxponders], ethernet service modules for ethernet switching and networking, CWDM [coarse wavelength division multiplexing] transmitters, dispersion compensation modules, in particular pulse compression apparatus, DWDM [dense wavelength division multiplexing] transmitters, optical network systems, optical network management and administration equipment [network communication apparatus], optical transmission systems consisting of transmitters, receivers, amplifiers and other signal processing apparatus, analogue-digital converters, transceivers, multiplexer amplifiers, telecommunication apparatus, instruments, systems and networks as well as parts and accessories thereof, computer systems as well as parts and accessories thereof, computer networks, local area networks [LANs], installation cables [telecommunication], plug cords [telecommunication], cable plugs [telecommunication], direct connection cables [telecommunication], adapters and small distribution boards [telecommunication], cables for transmitting data [pigtails], conducts in form of cable channels and other cable holders [telecommunication], passive and active network components [telecommunication] [network communication networks], transceivers [telecommunication], transmitters, receivers, apparatus, namely modems, for applying modulation processes, in particular PAM4, QPSK, PM-QPSK and QAM, coherent detection apparatus, Forward Error Correction apparatus; installation, cleaning, repair and maintenance of computer hardware and telecommunication apparatus; installation, maintenance and repair of computer hardware; installation of hardware for computer networks; installation of hardware for computer systems; maintenance and repair of computer hardware; maintenance and repair of computer hardware.