Mainframe migration software; computer software for developing and deploying legacy software applications; client-server software for managing multiple-tier computer networks; computer software for managing and providing access to databases and files over global and local computer networks; communications software for use in transmitting data and multimedia information over global and local computer networks; network management software; data delivery software to migrate software applications to other platforms; network utility software; communications software to deploy legacy software applications; legacy system management software programs; computer software for facilitating the transmission and reception of data via a global computer network and other computer networks; computer software for use in software development; computer software for emulating performance characteristics of multiple computer software operating environments; computer software, namely, assemblers, compilers, development environment software, offloading software, source code generators, debugging software, graphic user interface development software tools, file access, transfer and handling software, source code management software, computer code analysis software tools, key and data compression software, software tools for integrating development environments, and operating system extension and runtime software; computer software, namely, programs for maintaining and testing computer software, and instruction manuals supplied as a unit therewith