Developing computer software; Developing customized software for others; Developing of driver and operating system software; Development of software for secure network operations; Software development consulting in the field of operating systems, computer networking, high performance computing, enterprise computing, and distributed computing; Software design and development; Technical support services, namely, troubleshooting of computer software problems; Advisory services in the field of product development and quality improvement of software; Consulting in the field of virtualization technologies for enterprises and businesses; Design, development, and implementation of software for operating systems, computer networking, high performance computing, enterprise computing, and distributed computing