Definition / Belongs to this divisionThis division includes software writing, modification, testing, and their support services.

This division includes:
- designing and/or writing the structure and content of the programming languages necessary for the creation and implementation of:
- system software (including upgrades, repairs)
- software application (including upgrades, repairs)
- databases
- website design and programming
- custom adaptation of the software, ie modification and configuration of an existing application to functionally fit into the environment of the customer's information system, translation of non-custom software or adaptation to the system according to special market needs
It does not belong to this sectorThis division excludes:
- software package release (ready-made software), see 58.29
- publishing of non-custom-made (pre-existing) software, including translation of the program or adaptation to a system according to special market needs on own account, see 58.29
- design of a computer system that integrates hardware, software and communication technology, even if the software is part of it, see 62.02

Definition / Belongs to this divisionThis division includes the design and consultancy of a computer system that integrates hardware, software, and other information technology. The service may include related user training.
It does not belong to this sectorThis division excludes:
- installation of the main computer (mainframe) and similar computers, see 33.20
- trade in hardware and software, see 46.51, 47.41
- installation of the personal computer, see 62.09
- software installation, computer crash recovery, see 62.09

Definition / Belongs to this divisionThis division includes:
- on-site management, operation and support services of the customer's computer system and/or data processing equipment
It belongs to this branch - Hungarian supplementThis division includes - Hungarian supplement:
- computer rental and operating leasing with operating personnel
It does not belong to this branch - Hungarian supplementThis division excludes - Hungarian supplement:
- Renting and leasing of computers without operator, see 77.33

Definition / Belongs to this divisionThis division includes information technology and computer activities n.e.c.:
- Recover your computer after a crash
- setting up the personal computer
- the software installation
It does not belong to this sectorThis division excludes:
- installation of a central computer (large machine) and similar non-personal computer, see 33.20
- computer programming activities, see 62.01
- computer consultancy, see 62.02
- computer operation, see 62.03
- data processing and hosting, see 63.11