I can't believe I'm posting to this thread.
There's a Burroughs electronic calculator 1940/50s vintage, on auction
nearby.  It's a real Difference Engine with power.  It looks like a huge
mechanical adding machine with a large motor attached and a typewriter
printout.  You even get to see the wheels and gears turn behind a glass
door.
First compuer I ever saw for sale leaking oil...
-Mike
Allison J Parent wrote:
 <At 11:34 2/4/98 -0500, you wrote:
 <>Texas Instruments was naming some of their calculators "SR" (for Slide
 <>Rule) up until the mid-80's, at least. My first one was the SR-10...the
 <>"wedge". $110, IIRC....Was that TI's first?
 Not by a long shot.  The first was in late '71 and went for about $140
 (8bigit 4banger).  I had one going into EE school.
 Allison