[TUHS] PDP 11/23 running UNIX version 6 at VCF Midwest!

[Dave Plonka]

Hi folks!

While doing some end of year retrocomputing revisiting, I thought some
of you might enjoy this - there is hope for the next generation(s)! ;)
https://www.youtube.com/watch?v=_Zyng5Ob-e8

In this video I share my personal pick for "best"  demo at VCF
Midwest: Gavin's PDP 11/23 running UNIX Version 6!  We write and run a
simple BASIC program in Ken Thompson's bas(1), finding some quirks
with this (currently) entirely floppy-based system, possible having to
do with a glitch in disk I/O. (We discovered bas(1) uses a temporary
file as backing store.)

Filmed at the Vintage Computer Festival Midwest: VCF Midwest 16,
September 11, 2021
http://vcfmw.org/

Here's the source code to the simple program we wrote; you can also
run it on modern machines if you install a Research UNIX version using
SimH (pdp-11 simulator).

5 goto 30
10 for col = 1 arg(1)
12 prompt " "
14 next
20 print "Welcome to VCF Midwest!"
25 return
30 for x = 0 55
40 10(x)
50 next
60 for x = _56 _1
70 10(_x)
80 next

-- 
dave at plonka.us  http://www.cs.wisc.edu/~plonka/