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View Full Version : Another arguable first personal computer (IBM 610)



barythrin
February 3rd, 2009, 03:34 PM
So while googling around for the last IBM computer made, it so accurately presents me with the first personal computer made which I'm curious about but question. http://www.columbia.edu/acis/history/610.html

Just posting due to interest as well as the resent thread about the Simon (http://www.vintage-computer.com/vcforum/showthread.php?t=13643&highlight=personal+computer).

I guess all the typical arguments on what makes it a personal computer still apply. I found it interesting in their description of it being usable by one person.

tezza
February 3rd, 2009, 11:25 PM
Interesting. Thanks for posting.

Tez

chuckcmagee
February 4th, 2009, 12:27 AM
In 1967, I went to a trade school in addition to going to high school. At the trade school, they had a Bendix G15 computer. I was the only one who could get the thing up and running so..... (LOL) guess that was my first PC then.

http://en.wikipedia.org/wiki/Bendix_G-15

Sadly, just as I was figuring out how long the multiply command would take and how far the drum memory would turn in that time, the boot loader paper tape reader stopped working. All I owned at the time (and for the next 40 years) was a volt ohm meter. Not good enough to diagnose the tape reader circuits. It just turned into an excellent HEATER! It had 2 huge bay doors packed solid with tubes. Fire it up, open the doors, and place warmed up fast!
You would get the tube filaments glowing then press the PLATE VOLTAGE RELAY switch. CHUNK! Of course, to use as a heater, you could just forget about the plate voltage. I started out learning COBOL there but after 2 weeks, the instructor got a better paying job. No more COBOL instruction. IBM Unit Record Equipment instead! When I got out of college, all the unit record knowledge was totally obsolete.