You're kidding, right ?
ok - going backwards from the current version :
8.12
8.11
8.10
8.9
8.0 (Xe.1 or B7334)
Xe (or B7333 - first release with OMW, last coexist with A73)
B7332
B7331 (first generally accepted stable release)
B733 (last Visual C 5.0 release)
B7322
B7321 (first release for Citrix support)
B732 (first true release with distribution)
B7312
B7311R (remastered B7311 because of CD issues)
B7311
B731 (first true release with financials)
B7141 (Beta 2 with bugfixes, last coexist A71))
B714 (Beta 2)
B713 (Beta 1, Last Windows NT3.51 support)
B7A2 (Alpha 2)
This doesn't include the ASU updates (8 for Xe for example, which actually gets Xe pretty up to date) nor does it include the service packs, which Xe has 23 major service packs (and hundreds of "one-offs").
If you were going to describe your version, it should be in the following format :
B7333XU7SP23Q1 - ie, Xe with Update 7, SP23 and Q1 Oneoff - thats pretty much the best way to describe your version.
For the newer versions - I like the following format :
B810XU1SP895E1 - its the same number of letters as the earlier version and it tells me you're on 8.10 with Update 1, Service Pack 8.95 with E1 one-off !
8.9 should be "B809" - that'd be the best way to identify the version.
World = The Greenscreen AS/400 product, written in RPG and only works on an AS/400
OneWorld = a C based client-server product written to be platform and database independent utilizing "configurable network computing" - an architecture blueprint first described in the Wall Street Journal in 1996
EnterpriseOne = OneWorld. When Peoplesoft bought J.D. Edwards in 2003, they changed the name of the product to "EnterpriseOne" to distinguish it as being different from "Peoplesoft Enterprise" (their native product) and "Peoplesoft EnterpriseWorld" (the world product). When Oracle bought Peoplesoft, they then changed the name of the products to "J.D. Edwards EnterpriseOne" and "J.D. Edwards Enterprise World". Some people refer to Xe and 8.0 as "OneWorld" and 8.9 and above as "EnterpriseOne" but that really isn't correct since the technical foundation is similar !
As for World Versions - working backwards (major releases only, and I'm going to get some of these wrong too):
A9.0 (the newest version - just recently announced)
A8.1 (not co-existant with OneWorld)
A7.3 (lots and lots of stability and cums for this)
A7.2 (never released I don't believe)
A7.1 (coexistant with the first OneWorld releases)
Prior to A7.1 - "World" was actually just called "J.D. Edwards Software" with a version number. The "World" moniker came out after OneWorld was released internally to differentiate it. At one point, JDE was considering calling it "JDE Classic" - but too many people felt that it would end up like coke, where people loved the "original classic" formula and didn't move to the "new weird" formula !