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TCPaccess
TCPaccess is a software product which implements the TCP/IP protocol suite on IBM mainframe computers using the MVS operating system. It was developed in 1986 by Advanced Computer Communications under the name ''ACCES/MVS'', and was the first commercial TCP/IP implementation for MVS mainframes. It is usually associated with Interlink Computer Sciences, which developed and marketed the product from 1990 until 1999, and is frequently referred to as "the Interlink stack". The product was marketed by Cisco Systems as '' Cisco IOS for S/390 The IBM System/390 is a discontinued mainframe product family implementing the ESA/390, the fifth generation of the System/360 instruction set architecture. The first computers to use the ESA/390 were the Enterprise System/9000 (ES/90 ...''. It is currently offered by Computer Associates as ''Unicenter TCPaccess Communications Server''. External links ''Cisco IOS for S/390''– From Cisco Systems. {{network-software-stub ...
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Interlink Computer Sciences
Interlink Computer Sciences, of Fremont, California, was a developer of hardware and software that allowed IBM mainframe computers running the MVS operating system to be connected to non-IBM networks. Interlink was founded in 1983 by Lambert Onuma, Fred Wright, Karl Johnson and Greg Thompson, formerly of Digital Equipment Corporation. The company's first product, called simply ''Interlink'', allowed IBM MVS mainframes to be connected to VAX computers on a DECnet network. Later a VM/DECnet product was developed in cooperation with Dupont to link IBM VM/CMS systems with a DECnet network interconnecting e-mail, file, tape, and storage access, terminal emulation, a program-to-program API, and enabling DECnet to be tunneled over an SNA LU6.2 network. In 1990, Interlink acquired a product called ''ACCES/MVS'' from Advanced Computer Communications, which implemented a native TCP/IP protocol stack on the MVS and VM operating systems and within CICS regions. First released in 1986, A ...
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