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The IBM Personal Computer, commonly known as the IBM PC, spanned multiple models in its first generation (including the PCjr, the Portable PC, the XT, the AT, the Convertible, and the /370 systems, among others), from 1981 to 1987. It eventually gave way to many splintering product lines after IBM introduced the Personal System/2 in April 1987.
In 1980 rumors spread of a new IBM personal computer, perhaps a miniaturized version of the 370. [1] In 1981 the IBM Personal Computer appeared, but it was not based on the System 370 architecture. However, IBM did use their new PC platform to create combinations with additional hardware that could execute S/370 instructions locally.
The result was the Amdahl-Earle Computer, or AEC/360. Using many of the concepts in ACS-1 they produced a design that was slightly slower than it, but cost perhaps 75% as much to build, with only 90,000 gates instead of 270,000 (a gate requires about five transistors using the ECL logic of the era).
In 1980 IBM changed its name to System Productivity Facility [6] and offered a version [7] for CMS under VM/SP. [ 8 ] In 1982 IBM changed the name to Interactive System Productivity Facility, [ 9 ] split off some facilities into Interactive System Productivity Facility/Program Development Facility (ISPF/PDF) and offered a version for VSE/AF .
IBM Quantum System Two is the first modular utility-scaled quantum computer system, unveiled by IBM on December 4, 2023. [1]It is a successor to the IBM Quantum System One.. It contains three IBM Quantum Heron processors, which can be scaled up due to its modularity, and later upgraded for newer QPU's, as it is fully upgradeable.
Non-IBM SNA software allowed systems other than IBM's to communicate with IBM's mainframes and AS/400 midrange computers using the SNA protocols. Some Unix system vendors, such as Sun Microsystems with its SunLink SNA product line, including PU2.1 Server, [ 31 ] and Hewlett-Packard / Hewlett Packard Enterprise , with their SNAplus2 product ...
Brooks went on to help develop the IBM System/360 line of computers, in which "architecture" became a noun defining "what the user needs to know". [10] The System/360 line was succeeded by several compatible lines of computers, including the current IBM Z line. Later, computer users came to use the term in many less explicit ways. [11]
OS/390 was introduced in late 1995 in an effort to simplify the packaging and ordering for the key, entitled elements needed to complete a fully functional Multiple Virtual Storage (MVS) operating system package. These elements included, but were not limited to: