Design, development, and testing of computer software; computer software development in the field of mobile, desktop, and web applications; computer software development in the field of digital and internet advertising; providing information and consultation in the fields of computer technology and software development; consulting services for others in the field of design, planning, implementation, and project management of software development and testing; computer system analysis for others; computer technology support services, namely, providing consultancy on software and computer operating systems; providing analysis of computer information technology systems; technical support services, namely technical advice concerning the installation, repair and maintenance of software