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Revision Date Username Comment
1718 Dec 2014 - 17:09ThomasMisa 
1618 Dec 2014 - 13:17ThomasMisa 
1518 Dec 2014 - 13:08ThomasMisa 
1418 Dec 2014 - 13:08ThomasMisa 
1318 Dec 2014 - 13:06ThomasMisaAttached file IBM_AS-400-family2.jpg 
1218 Dec 2014 - 12:33ThomasMisa 
1118 Dec 2014 - 12:28ThomasMisa(minor)  
1018 Dec 2014 - 11:12ThomasMisa 
912 Nov 2014 - 15:18ThomasMisa 
803 Oct 2013 - 15:39norqu036? 
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The Application System/400 (AS/400) was a mid-range family of IBM mainframe computers meant for small and intermediate-sized companies.(1) Introduced in 1988, the AS/400 replaced the System/38, while featuring compatibility with IBM's successful System/36 line of minicomputers.(2) Developed internally at IBM, the AS/400 originally included six processor models, and doubled the performance of the System/38 line it replaced.(3) In 1995 the AS/400 line moved from a custom, 48-bit IBM CISC CPU architecture, to a 64-bit POWER-based RISC CPU, which increased the address space.(4) In 2000, the AS/400 was renamed as the iSeries, which remains in production.(5)

The AS/400 was among the first general-purpose computers to attain the NSA C2 security rating, after the Gould UTX/C2 UNIX-based system from 1986. With more than 1,000 software packages released upon its launch, the AS/400 became a popular business system, with nearly a half-million systems selling by 1997.(6)(7) The AS/400 remains the most recent major architectural shift developed in-house at IBM, with IBM thereafter opting to acquire key product technologies instead.(8)

lock https://wiki.umn.edu/pub/CBI_ComputerSecurity/SystemsAS400Files/DesignAS400.pdf (Login required)


1 , 5 , 7 : http://www-03.ibm.com/ibm/history/exhibits/rochester/rochester_4010.html

2 : lock William Berg, Marshall Cline, and Mike Girou, "Lessons Learned from the OS/400 OO Project," Communications of the ACM 38, no. 10 (October 1995), 54-55. (Login required)

3 , 6 : lock as400.pdf, p. 1. - IBM AS/400 PDF (Login required)

4 : lock Arthur Norberg and Jeffrey R. Yost, _IBM Rochester: Half Century of Innovation_, Rochester, MN (IBM, 2006), 38-39. (Login required)

8 : http://en.wikipedia.org/wiki/IBM_System_i

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Topic revision: r6 - 16 Apr 2013 - 11:25:54 - NicLewis
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