Search results
Results from the WOW.Com Content Network
IBM Enterprise Systems Architecture is an instruction set architecture introduced by IBM as ESA/370 in 1988. It is based on the IBM System/370-XA architecture.. It extended the dual-address-space mechanism introduced in later IBM System/370 models by adding a new mode in which general-purpose registers 1-15 are each associated with an access register referring to an address space, with ...
Enterprise architecture regards the enterprise as a large and complex system or system of systems. [3] To manage the scale and complexity of this system, an architectural framework provides tools and approaches that help architects abstract from the level of detail at which builders work, to bring enterprise design tasks into focus and produce valuable architecture description documentation.
The cleanroom process was originally developed by Harlan Mills and several of his colleagues including Alan Hevner at IBM. [1] The cleanroom process first saw use in the mid to late 1980s. Demonstration projects within the military began in the early 1990s. [2]
IBM described MVPG as "moves a single page and the central processor cannot execute any other instructions until the page move is completed." [ 29 ] The MVPG mainframe instruction [ 30 ] ( M o V e P a G e, opcode X'B254') has been compared to the MVCL ( M o V e C haracter L ong) instruction, both of which can move more than 256 bytes within ...
There are three principles of systems design in reliability engineering ... 3.65 days 21.9 hours 7.31 hours 1.68 hours ... In a 1998 report from IBM Global ...
In the 1980s John Zachman had been involved at IBM in the development of business system planning (BSP), a method for analyzing, defining and designing an information architecture of organizations. In 1982 Zachman [ 14 ] had already concluded that these analyses could reach far beyond automating systems design and managing data into the realms ...
The performance of IBM's RISC CPU—only available in the RT PC—was less competitive than others, [31] but the success of SPARC renewed interest within IBM, which released new RISC systems by 1990 and by 1995 RISC processors were the foundation of a $15 billion server industry. [16]
The IBM z16 [8] mainframe, based on the Telum processor, was introduced on April 5, 2022. [9] The instructions for AI and neural nets are described in a new edition [ 10 ] of the z/Architecture Principles of Operation.