[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Nmh-workers] Garbage collection

From: Mike O'Dell
Subject: Re: [Nmh-workers] Garbage collection
Date: Wed, 02 Jan 2013 20:39:44 -0500

the entire jive about "EBCDIC-safe" was never
anything other than insanely bizarre. the concept
made no sense because there are keypunch patterns
defined for every byte value 0x00 through 0xff.
OS/360 "object decks" used those routinely.
they even had a way to "quote" a deck image such
that a "//" in the first two columns wouldn't
automagically terminate the object deck.

if they meant "printable in EBCDIC", then that
immediately produced a discussion about what
"character set" was on the print chain (or
print train for 1403-N1 printers) mounted
in the printer in question. Even more entertaining
was sorting out what happened when an RJE
workstation used a Dataproducts printer with
an ASCII-96 graphics print drum. The mapping
was glyph-to-glyph when possible. But the 
usual "PN" graphics set didn't have lower
case (basically the FORTRAN/PL1 character set)
while the "TN" train was close to ASCII-96
if one would tolerate a few substitutions.
the ALA print train (used to print library
card catalog cards in the American Library
Association format) had a much larger set
of graphics but only one copy of the letters
and numbers so that on most output the 
througput was cut in half.

egads - i'm having flashbacks from having
written a Unix print spooler that could display
Unix Man Pages (using TTY-37 graphics!)
on all the different printers attached
to the 370 at college. 

Bad trip. Baaaaaad trip, man.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]