EditWYSIWYGAttach PDF Raw View►More Actions▼More Actions

Restore topic to revision: You will be able to review the topic before saving it to a new revision

Copy text and form data to a new topic (no attachments will be copied though).
Name of copy:
You will be able to review the copied topic before saving

Rename/move topic... scans links in all public webs (recommended)
Rename/move topic... scans links in CBI_ComputerSecurity web only
Delete topic... scans links in all public webs (recommended)
Delete topic... scans links in CBI_ComputerSecurity web only

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? 
earlier first

Render style:     Context:

 History: r17 | r9 < r8 < r7 < r6
[X] Hide this message.
Notice: On June 30, 2016, UMWiki service will be decommissioned. If you have information in UMWIki that needs to be preserved, you should make plans to move it before that date. Google Sites is anticipated to be the most popular and appropriate alternative for users because it offers a more modern and user-friendly interface and unlimited capacity. To learn more about the features of Google Sites and other alternatives, and to identify which one best fits your needs, see the University’s Website Solution Selection Guide. If you have concerns or would like help regarding this change and your options, please contact Technology Help at help@umn.edu
You are here: UMWiki>CBI_ComputerSecurity Web>Systems>SystemsAS400 (revision 7)



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)(3) Developed internally at IBM, the AS/400 originally included six processor models, and doubled the performance of the System/38 line it replaced.(4) 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. 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.(5)(6)(7) In 2000, the AS/400 was renamed as the iSeries, which remains in production.(8)

The AS/400 originally shipped with three levels of security, levels 10, 20, and 30, with level 10 providing no security, 20 requiring users to sign-on with a password, and level 30 provides differential levels of access, depending upon the user's permission level for accessing resources. Level 30 was the minimum level of security IBM recommended for users. IBM subsequently added levels 40 and 50, with level 40 restricting the range of instructions users and programs were allowed to use, depending upon the class-level of the user and program. Level 50, announced with OS/400 V2R3, added additional features to meet the NSA C2 certification standard, including "discretionary," need-to-know protection for system resources.(9)


1 , 7 , 8 : http://www-03.ibm.com/ibm/history/exhibits/rochester/rochester_4010.html

2 : lock B. J. Pine, II, "Design, Test, and Validation of the Application System/400 Through Early User Involvement," IBM Systems Journal 28, no. 3 (1989), 376-377. (Login required)

3 : 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)

4 , 6 : lock as400.pdf, p. 1. - IBM AS/400 PDF (Login required)

5 : lock Arthur Norberg and Jeffrey R. Yost, IBM Rochester: Half Century of Innovation, Rochester, MN (IBM, 2006), 37-39. (Login required)

9 : Soltis, Frank G.. "Chapter 17 - Security in a Web World". Fortress Rochester: The Inside Story of the IBM iSeries. 29th Street Press. © 2001. Books24x7. <http://common.books24x7.com/toc.aspx?bookid=5707> (accessed April 17, 2013)

Edit | WYSIWYG | Attach |  PDF |  History: r17 | r9 < r8 < r7 < r6 |  Backlinks |  Raw View | More topic actions...
Topic revision: r7 - 17 Apr 2013 - 10:11:58 - NicLewis
Signed in as lewi0740 (NicLewis) | Sign out
UMWiki UMWiki
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding UMWiki? Send feedback