Computer programming services; computer rental services; server hosting; rental of web servers; optimization services for computers, namely, computer networks and computer software configuration; installation of computer software; maintenance and upgrading of computer software, namely, enhancing functions of computer software, changing or adding functions of computer software, and providing information thereon; software as a service (SAAS); computer system consulting and advisory services ; providing temporary use of non-downloadable cloud-based software; providing technical information about computers, computer software and computer networks; platform as a service (PaaS).