IBM-compatible mainframe


Also found in: Dictionary, Thesaurus, Financial.

IBM-compatible mainframe

A non-IBM mainframe that runs IBM mainframe operating systems and applications. In the late 1960s, RCA's computer division produced the Spectra 70, the first line of machines compatible with IBM's System/360. Later, Amdahl, National Semiconductor (marketed through Itel) and Hitachi entered this segment. Today, IBM-compatible mainframes are no longer manufactured. Although servers from HP, Sun and others offer mainframe-like features, IBM is the only company making IBM mainframes. See HDS and Amdahl.


Hitachi's Skyline
Over the years, several companies offered products that ran IBM mainframe operating systems. This Skyline model from Hitachi could be configured with up to 512 channels and 16 ports into memory, providing enormous transaction processing throughput. (Image courtesy of Hitachi Data Systems.)
References in periodicals archive ?
Refusing to supply its operating systems to end-user customers who choose to purchase PSI's IBM-compatible mainframe computer systems;
The device uses an ESCON adapter to communicate with IBM-compatible mainframes.
The ChanlComm(R) 7790 connects directly to IBM and IBM-compatible mainframes, providing full communications between the mainframe and the remote network.
Intelligent Information Systems Limited designs, develops, manufactures, markets and services peripheral and communication products for use with mid-range and large IBM and IBM-compatible mainframe computer systems and other computer system environments such as DEC, NCR and Data General.
EMC's performance in the third quarter also reflected stronger-than-anticipated revenues in the IBM-compatible mainframe storage market during what is traditionally a seasonally weaker quarter.
Its hardware products include IBM-compatible mainframe computers, data storage devices, and open systems servers for UNIX and Windows NT computing environments.
The IBM Mainframe Users Information Exchange (IBEX) Bulletin, for instance, this month released the results of its 1996 customer satisfaction survey of nearly 450 IBM and IBM-compatible mainframe sites worldwide.
Rule Finder supports IBM-compatible mainframe COBOL and runs on a SUN, HP 9000 or IBM RS/6000 UNIX server.
The company's flagship software, tableBASE, is a proven memory-resident table management system for enhancing DB2, CICS and IMS applications running on IBM-compatible mainframes.