Computer hardware and instructional manuals sold as a unit therewith; computer software, namely, computer operating system programs, computer utility programs, computer programs for project management, version control, and configuration management of other computer programs, computer programs for compiling, designing, developing, writing, editing, analyzing, browsing, optimizing, enhancing performance of, debugging, testing, verifying, documenting, and simulating other computer programs, and instructional manuals sold as a unit therewith