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The IBM System i platform extended the System / 38 architecture of an object-based system with an integrated DB2 relational database.
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IBM and System
The initial setting of this table may be altered, however, as described in the 7070/7074 Data Processing System Bulletin `` IBM 7070/7074 Compiler System: Operating Procedure '', form Aj.
A full description of the DIOCS, DTF, and DUF statements is contained in the 7070 Data Processing System Bulletin `` IBM 7070 Input/Output Control System '', form Aj.
* Attached Support Processor, one of the two early IBM System / 360 programs that replaces the native SPOOL facilities of OS / 360 ; the other was Houston Automatic Spooling Priority ( HASP ).
Originally released for the IBM 6150 RISC workstation, AIX now supports or has supported a wide variety of hardware platforms, including the IBM RS / 6000 series and later IBM POWER and PowerPC-based systems, IBM System i, System / 370 mainframes, PS / 2 personal computers, and the Apple Network Server.
AIX Version 1, introduced in 1986 for the IBM 6150 RT workstation, was based on UNIX System V Releases 1 and 2.
Among other variants, IBM later produced AIX Version 3 ( also known as AIX / 6000 ), based on System V Release 3, for their IBM POWER-based RS / 6000 platform.
Since 1990, AIX has served as the primary operating system for the RS / 6000 series ( later renamed IBM eServer pSeries, then IBM System p, and now IBM Power Systems ).
In 2003, the SCO Group alleged that ( among other infractions ) IBM had misappropriated licensed source code from UNIX System V Release 4 for incorporation into AIX ; SCO subsequently withdrew IBM's license to develop and distribute AIX.
The original AIX ( sometimes called AIX / RT ) was developed for the IBM 6150 RT workstation by IBM in conjunction with Interactive Systems Corporation, who had previously ported UNIX System III to the IBM PC for IBM as PC / IX.
AIX / 370 was released in 1990 with functional equivalence to System V Release 2 and 4. 3BSD as well as IBM enhancements.
IBM and i
* Auxiliary Storage Pool, a group of disk drives in the IBM i ( aka OS / 400 ) operating system
It is currently supported on IBM Power Systems alongside IBM i and Linux.
The first highly ( or tightly ) pipelined x86 implementations, the 486 designs from Intel, AMD, Cyrix, and IBM, supported every instruction that their predecessors did, but achieved maximum efficiency only on a fairly simple x86 subset that was only a little more than a typical RISC instruction set ( i. e. without typical RISC load-store limitations ).
This decline ( in aerobic capacity ) is most likely a consequence of the sedentary lifestyle that is often associated with the symptoms of IBM ( i. e. progressive muscle weakness, decreased mobility, and increased level of fatigue ).
* IBM RPG, a native programming language for IBM's System i servers
However, some older operating systems ( such as OS / VS1 and OS / VS2 SVS ) and even modern ones ( such as IBM i ) are single address space operating systems that run all processes in a single address space composed of virtualized memory.
IBM System i 570 server ( As of 2006 )
The IBM System i is IBM's previous generation of midrange computer systems for IBM i users, and was subsequently replaced by the IBM Power Systems in April 2008.
The unified product line is called IBM Power Systems and features support for the IBM i ( previously known as i5 / OS or OS / 400 ), AIX and GNU / Linux operating systems.
In 2006, it was again rebranded as the IBM System i. In 2008, almost 20 years after being introduced, the product line was discontinued and replaced by the IBM Power Systems line.
One feature that has contributed to the longevity of the IBM System i platform is its high-level instruction set ( called TIMI for " Technology Independent Machine Interface " by IBM ), which allows application programs to take advantage of advances in hardware and software without recompilation.
IBM and platform
By this point, both the IBM PC and Apple Macintosh had a much larger market share than the Amiga platform.
When Compaq introduced the first PC based on Intel's new 80386 microprocessor, the Compaq Deskpro 386, in 1986, it marked the first CPU change to the PC platform that was not initiated by IBM.
* DOS for the IBM PC compatible platform
Businesses were moving en masse to the IBM PC platform by that time, so portability was no longer a significant differentiator.
The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform.
By extending the 16 / 24-bit IBM PC / AT standard into a natively 32-bit computing environment, Compaq became the first third party to implement a major technical hardware advance on the PC platform.
IBM intended to replace the existing OS / 2 with this more advanced version that would run exclusively on the PowerPC platform, forcing users to migrate to proprietary IBM hardware and eventually eliminating the Intel version.
Apart from its reliability issues, the target business market was becoming wedded to the IBM PC platform, whilst the majority of ZX Spectrum owners were uninterested in upgrading to a machine which had a minimal library of games.
The IBM mainframe z / OS operating system / platform has arguably the most highly refined and evolved set of batch processing facilities owing to its origins, long history, and continuing evolution, and today such systems commonly support hundreds or even thousands of concurrent online and batch tasks within a single operating system image.
Later, this team would be placed by Softdisk in charge of a new, but short-lived, bi-monthly game subscription product called Gamer's Edge for the IBM PC ( MS-DOS ) platform.
In April 2008, IBM announced its integration with the System p platform.
In April 2008, IBM announced a rebranding of the System p and its unification with the System i platform.
By the late 1990s, the success of Microsoft Windows had driven rival commercial operating systems into near-extinction, and had ensured that the “ IBM PC compatible ” computer was the dominant computing platform.
Apple was the dominant purchaser of PowerPC chips from IBM and Freescale Semiconductor and even though they abandoned the platform, further development of AltiVec is continued in several Power Architecture designs from Freescale and IBM.
A game made for the Amiga platform generally had much better sound and graphics than the same game running on an IBM PC, and it was also a more powerful machine than its nearest rival, the Atari ST.
Development was put on hiatus in 1994 after slow sales on the Windows platform, and officially ended in 1996 after Lotus was purchased by IBM.
IBM and extended
IBM Research Labs also developed an extended FORTRAN-based language called " VECTRAN "
Industry Standard Architecture ( ISA ) is a computer bus standard for IBM PC compatible computers introduced with the IBM Personal Computer to support its Intel 8088 microprocessor's 8-bit external data bus and extended to 16 bits for the IBM Personal Computer / AT's Intel 80286 processor.
Some RISC processors such as the PowerPC have instruction sets as large as, say, the CISC IBM System / 370 ; and conversely, the DEC PDP-8 — clearly a CISC CPU because many of its instructions involve multiple memory accesses — has only 8 basic instructions, plus a few extended instructions.
They extended the Star desktop concept into an animated graphic and communicating office-automation model and sold the company to IBM.
In December 2001 IBM extended OS / 390 to include support for 64-bit zSeries processors and added various other improvements, and the result is now named z / OS.
The product line was further extended in 2004 with the introduction of the i5 servers, the first to use the IBM POWER5 processor.
# MAD / I, an " extended " version of MAD for the IBM S / 360 series of computers running under the Michigan Terminal System ( MTS ).
Most versions of the HIMEM. SYS extended memory driver for IBM -/ MS-DOS famously displayed upon loading a message that they had installed an " A20 handler ", a piece of software to control Gate-A20 and coordinate it to the needs of programs.
It also employs open standards and industry de facto standards and can be extended with, and interoperate with, technologies such as Red Hat's JBoss, Microsoft. NET, Java EE, and IBM WebSphere.
IBM extended the functionality of Database Manager a number of times, including the addition of distributed database functionality that allowed shared access to a database in a remote location on a LAN.
From dominance of the card punches, readers, tabulators, and printers, IBM extended to dominance of the mainframe computer market, and then to the operating systems and application programs for computers.
The popularity of IBM's first personal computers made the ISA bus, first used on the IBM PC in 1981 and later extended to 16-bit in 1984 with the IBM PC / AT, the undisputed standard expansion bus for personal computers shortly after.
The IBM origin of the numbering scheme is reflected in the fact that the smallest ( first ) numbers are assigned to variations of IBM's EBCDIC encoding and slightly larger numbers refer to variations of IBM's extended ASCII encoding as used in its PC hardware.
Most vendors ( including IBM ) used this extended range to encode characters used by various languages and graphical elements that allowed the imitation of primitive graphics on text-only output devices.
No formal standard existed for these ‘ extended character sets ’ and vendors referred to the variants as code pages, as IBM had always done for variants of EBCDIC encodings.
Soltis led the design of the " Amazon " instruction set architecture, an extended version of the 64-bit PowerPC architecture ; the Amazon architecture is implemented by the RS64, POWER4, and POWER5 processors used in the IBM iSeries and pSeries computers.
The high memory area ( HMA ) is the RAM area consisting of the first 64 KiB, minus 16 bytes, of the extended memory on an IBM PC / AT or compatible microcomputer.
In the context of IBM PC compatible computers, extended memory refers to memory in the address space of the 80286 and subsequent processors, beyond the 1 megabyte limit imposed by the 20 address lines of the 8088 and 8086.
In DOS memory management, extended memory refers to memory above the first megabyte of address space in an IBM PC or compatible with an 80286 or later processor.
The eXtended Memory Specification or XMS is the specification describing the use of IBM PC extended memory in real mode for storing data ( but not for running executable code in it ).
Their analysis derives such characteristics using a model of " third generation architectures " ( e. g., IBM 360, Honeywell 6000, DEC PDP-10 ) that is nevertheless general enough to be extended to modern machines.
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