Transmission Control Protocol/Internet Protocol (TCP⁄IP) is a set of industry-standard protocols and applications that enable you to share data and computing resources with other computers, both IBM® and non-IBM. By using TCP⁄IP commands at your workstation, you can perform tasks and communicate easily with a variety of other systems and workstations. z/OS® Communications Server enables the user to interactively run TCP/IP applications (TCP/IP commands) from both the Time Sharing Option (TSO) and the z/OS shell.