Talk:IBM 650

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The 650 was not IBM's first business computer as was previously stated in this entry; that was the 702 (not the 701 that I mentioned in the edit summary of the main page. --Brouhaha 02:06, 24 Aug 2004 (UTC)

BLIS not BLISS[edit]

I definitely remember the name as BLIS - BLISS would have stuck in my memory. I have written the guy at Murdoch whose web site shows BLISS to try to find out where s/he got the name from. I guess we have to leave it as BLISS until I get an answer, but I used it briefly, and I am 99% it was BLIS! Ah! I see from his references - but I still think they are wrong! This is supported by [[1]], [[2]] Jpaulm 15:18, 18 September 2006 (UTC)

There also appears to be a language called BLISS - maybe this is contributing to the confusion! Jpaulm 17:34, 19 September 2006 (UTC)

I have the same recollection as you, although I never actually used it at the time. Changed the name here to match Murdoch on the assumption that I was wrong (it has happened more than once). Not sure you'll get an answer from Murdoch; I have the ACM CACM in my garage but getting to it is almost impossible so I can't check that reference. I'll change it back to BLIS and note the question.

The other BLISS is a DEC language, I've actually got that manual in my bookcase -- no idea why. 20:27, 19 September 2006 (UTC)

A Google search "Bell Laboratory Interpretive System" returns a few Japanese documents where "BLIS" can be seen in the Google search result. 20:53, 19 September 2006 (UTC)

Other IBM-650 programming tools[edit]

Runcible was interesting as a Fortran forerunner, it had just 3 types of variables: In, Jn & Xn where was a number from 1 to 50 (as there were 50 words per drum "track"),

There was also a Statistical Bell Interpreter, which instructions for statistical handling.x

Event: mexico is celebrating 50 years of computing as an IBM-650 was installed at the University of Mexico (UNAM) in 1958, I did program it, for seismic research.

MEXICO -- AGS -- --Dagofloreswi (talk) 05:05, 8 November 2008 (UTC)

IBM 650 picture of front panel[edit]

In the article on the IBM 650 the first photo doesn't appear for me, although it does for Mike who put it up there. All I get is a box containing the following text: "IBM 650 front panel, showing bi-quinary indicators", and 2 overlapping squares. If I click on the squares, I just get text, including what I guess to be Esperanto. Is anyone else having this problem, or am I the only one?! BTW I get it in both Netscape and IE. Thanks. Jpaulm 20:55, 17 October 2006 (UTC)

Revert edit re "Error Sense"[edit]

This text "One of the 650's most significant features was that, if processing was interrupted by a "random processing error" (hardware glitch), the machine could automatically resume from the last checkpoint instead of requiring the operators to restart the job manually from the beginning." has been reverted.

The 650 could be set, "Error Sense", to execute the instruction set in the console switches when an error was detected. That's it; anything else that happened was determined by the application's programmer - there were no 650 provided checkpoints (as the quoted text implies) and no automatic resumption. "Error Sense" was NOT "One of the 650's most significant features". (talk) 02:45, 15 November 2008 (UTC)


Is it appropriate to mention the common term "one and a half address computer"? "Sloptimization" (assigning the next instruct to an address 5 word times away instead of looking up instruction timings)? Shmuel (Seymour J.) Metz (talk) 20:36, 14 May 2010 (UTC)