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
1984 was the first I saw in the mainframe world (IBM).
IBM or Microsoft.
The IBM zEnterprise 196 mainframe
IBM
First IBM PC (Personal Computer) was IBM model number5150, which was introduced on August 12, 1981.IBM's first electronic digital computer was the 701 Defense Calculator, introduced in 1952.IBM's first computer was the Harvard Mark I, in 1942, but it was electromechanical.
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.
IBM's first computer was the IBM ASCC at Harvard University (later renamed the Harvard Mark I due to an argument between IBM and Howard Hathaway Aiken of Harvard) in 1944.IBM's first electronic computer was the IBM 701 in 1952.
Sperry built the first mainframe computer about 1950, soon followed by IBM. In the beginning it was envisioned that only about six computers could be usefully employed, for example, by the Bureau of the Census, the Internal Revenue Service, the Department of Defense.
fixed-position
IBM system 3 and AS-400 are some examples of minicomputers.
IBM's first computer that was not produced as a one off contract machine was the IBM 701 in 1953. They made 9.