Oldest computer you've used for "real work"?

[MarkHaysHarris777]

The oldest computer I have used for 'real work' was the Wang 700 series C.

http://americanhistory.si.edu/collection...mah_334351

Dr Wang was inspired by the HPg100 and went to work on his own machine. From a computer science standpoint its essentially the same technology that went to the moon... rope rom memory, ferrite core RAM, no single processor chip, nixie tube display registers, keystroke and machine programming, cass tape storage... circa 1968. My work with the machine was to write the STATS routines (including printouts -- IBM selectric tty) for a path lab in Kansas City while I was in high school (about $5,000.00 piece of hardware that weighed a royal ton).

In the evenings I baby-sat the IBM 360-44 on the second floor of the same lab-- circa 1969-1973. That machine was the first computer to analyze electrocardiograms over phone acoustic pickups from remote labs around the Mid-west U.S... also had ferrite core RAM (an entire 256K originally) and selectric IO tty.

http://www-03.ibm.com/ibm/history/exhibi...P2044.html

memories
cheers