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The IBM zEnterprise 196 mainframe
IBM
IBM produced their first mainframe computer in 1952. Between 1952 and the late 1970's the term "mainframe computer" was automatically linked with IBM because they had the largest share of the computer market.
IBM and HP
IBM system 3 and AS-400 are some examples of minicomputers.
IBM or Microsoft.
SunMicro Systems and IBM
frankly speaking i don't know.some one answer this please.
IBM's FORTRAN compiler for /390 mainframe.
ibm and sub microsystems
The first mainframes were large enough to fill an entire room. The mainframes today created by IBM are about the size of your household refrigerator.
1984 was the first I saw in the mainframe world (IBM).