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The IBM System/360 Model 30 was a low-end member of the IBM System/360 family. It was announced on April 7, 1964, shipped in 1965, and withdrawn on October 7, 1977. [ 1 ] The Model 30 was designed by IBM's General Systems Division in Endicott , New York, and manufactured in Endicott and other IBM manufacturing sites outside of U.S.
The Personal System/2 Model 30 and Personal System/2 Model 30 286 are IBM's entry-level desktop computers in their Personal System/2 (PS/2) family of personal computers. As opposed to higher-end entries in the PS/2 line which use Micro Channel bus architecture, the Model 30 features an Industry Standard Architecture bus, allowing it to use expansion cards from its direct predecessors, the PC ...
IBM System/360 Model 20 CPU with front panels removed, with IBM 2560 MFCM (Multi-Function Card Machine) IBM System/360 Model 30 CPU (red, middle of picture), tape drives to its left, and disk drives to its right, at the Computer History Museum IBM System/360 Model 50 CPU, computer operator's console, and peripherals at Volkswagen System/360 Model 65 operator's console, with register value ...
IEC 61131-3 is the third part (of 10) of the international standard IEC 61131 for programmable logic controllers.It was first published in December 1993 [1] by the IEC; the current (third) edition was published in February 2013.
In the real world some low-end devices may only support a subset of these 488.2 commands, or may even accept the commands but not perform any operation. A user should check the official programmers manual for each device before assuming all of these 488.2 commands are supported.
The user guide engraved into a model of the Antikythera Mechanism. User guides have been found with ancient devices. One example is the Antikythera Mechanism, [1] a 2,000 year old Greek analogue computer that was found off the coast of the Greek island Antikythera in the year 1900. On the cover of this device are passages of text which describe ...
It was possible to choose DOS/360, OS/360 MFT (Multi-programming with a Fixed number of Tasks), or OS/360 MVT (Multi-programming with a Variable number of Tasks) as the operating system of an IBM System/360 Model 50. Few chose MVT. [6] The choice of operating system for the System/360 Model 50 was based primarily on the amount of main storage.
Librascope LGP-30 An LGP-30 in use at Manhattan College in 1965 LGP-30 at The Computer Museum, Boston with cover removed. Control panel is at top center, to the left of the memory drum. The LGP-30, standing for Librascope General Purpose and then Librascope General Precision, is an early off-the-shelf computer.