🚀 go-pugleaf

Charlie Gibbs <cgibbs@kltpzyxm.invalid> writes:
> The fact that keypunches didn't support lower case was merely an
> implementation detail.  If there had been a demand for lower case,
> keypunch keyboards would be more like typewriter keyboards.  Most
> printers, on the other hand, supported 64 characters at best, and
> exceptions (e.g. a 1403 with a TN chain) were avoided if possible
> because they ran slower that way.  IMHO it was printers that held
> back the acceptance of lower case, not punches.

BCD didn't support lower case, had to move to EBCDIC (w/360)
https://en.wikipedia.org/wiki/BCD_(character_encoding)

biggest computer goof, 360 was suppose to be ASCII (not EBCDIC) ...  but
ascii unit record gear wasn't available in time, so started with lots
of existing BCD equipment (and then conversion was much harder)
http://www.bobbemer.com/P-BIT.HTM

6bit encoding, bcd, ascii, more
https://en.wikipedia.org/wiki/Six-bit_character_code

past posts mentioning P-BIT "goof"
http://www.garlic.com/~lynn/2009k.html#26 A Complete History Of Mainframe Computing
http://www.garlic.com/~lynn/2009k.html#27 Origins of EBCDIC
http://www.garlic.com/~lynn/2009k.html#39 Mainframe Utility for EBCDIC to ASCII conversion
http://www.garlic.com/~lynn/2009k.html#41 Disksize history question
http://www.garlic.com/~lynn/2009s.html#63 CAPS Fantasia
http://www.garlic.com/~lynn/2010b.html#4 Happy DEC-10 Day
http://www.garlic.com/~lynn/2010q.html#65 They've changed the keyboard layout _again_
http://www.garlic.com/~lynn/2011.html#9 Typewriter vs. Computer
http://www.garlic.com/~lynn/2011j.html#67 Wondering if I am really eligible for this group
http://www.garlic.com/~lynn/2011k.html#6 50th anniversary of BASIC, COBOL?
http://www.garlic.com/~lynn/2011k.html#45 HP getting out of computer biz
http://www.garlic.com/~lynn/2011l.html#23 computer bootlaces
http://www.garlic.com/~lynn/2011n.html#5 Any candidates for best acronyms?
http://www.garlic.com/~lynn/2011n.html#45 CRLF in Unix being translated on Mainframe to x'25'
http://www.garlic.com/~lynn/2011n.html#55 "Geek" t-shirts
http://www.garlic.com/~lynn/2012.html#100 The PC industry is heading for collapse
http://www.garlic.com/~lynn/2012e.html#52 M68k add to memory is not a mistake any more
http://www.garlic.com/~lynn/2012e.html#55 Just for a laugh... How to spot an old IBMer
http://www.garlic.com/~lynn/2012k.html#73 END OF FILE
http://www.garlic.com/~lynn/2012l.html#36 PDP-10 system calls, was 1132 printer history
http://www.garlic.com/~lynn/2012l.html#84 72 column cards
http://www.garlic.com/~lynn/2012m.html#52 8-bit bytes and byte-addressed machines
http://www.garlic.com/~lynn/2012o.html#56 Reduced Symbol Set Computing
http://www.garlic.com/~lynn/2013.html#56 New HD
http://www.garlic.com/~lynn/2013b.html#72 One reason for monocase was Re: Dualcase vs monocase. Was: Article for the boss
http://www.garlic.com/~lynn/2013c.html#14 What Makes an Architecture Bizarre?
http://www.garlic.com/~lynn/2013e.html#61 32760?
http://www.garlic.com/~lynn/2013i.html#3 Ported Tools - Unix
http://www.garlic.com/~lynn/2013i.html#49 Internet Mainframe Forums Considered Harmful
http://www.garlic.com/~lynn/2013l.html#33 Teletypewriter Model 33
http://www.garlic.com/~lynn/2014.html#19 the suckage of MS-DOS, was Re: 'Free Unix!
http://www.garlic.com/~lynn/2014.html#21 the suckage of MS-DOS, was Re: 'Free Unix!
http://www.garlic.com/~lynn/2014.html#22 the suckage of MS-DOS, was Re: 'Free Unix!
http://www.garlic.com/~lynn/2014.html#37 Subject Unicode
http://www.garlic.com/~lynn/2014c.html#5 How many EBCDIC machines are still around?
http://www.garlic.com/~lynn/2014c.html#13 How many EBCDIC machines are still around?
http://www.garlic.com/~lynn/2014d.html#63 Difference between MVS and z / OS systems
http://www.garlic.com/~lynn/2014e.html#52 Rather nice article on COBOL on Vulture Central
http://www.garlic.com/~lynn/2014f.html#78 Over in the Mainframe Experts Network LinkedIn group
http://www.garlic.com/~lynn/2014g.html#24 Fifty Years of BASIC, the Programming Language That Made Computers   Personal
http://www.garlic.com/~lynn/2014g.html#29 Special characters for Passwords
http://www.garlic.com/~lynn/2014g.html#99 IBM architecture, was Fifty Years of nitpicking definitions, was BASIC,theProgrammingLanguageT
http://www.garlic.com/~lynn/2014j.html#4 Migration path for IBM 650 users?
http://www.garlic.com/~lynn/2014j.html#6 Migration path for IBM 650 users?
http://www.garlic.com/~lynn/2015.html#65 16-bit minis, was Floating point
http://www.garlic.com/~lynn/2015e.html#6 New Line vs. Line Feed
http://www.garlic.com/~lynn/2016b.html#47 ASCII vs. EBCDIC (was Re: On sort options ...)
http://www.garlic.com/~lynn/2016e.html#0 Is it a lost cause?
http://www.garlic.com/~lynn/2016h.html#64 "I used a real computer at home...and so will you" (Popular Science May 1967)
http://www.garlic.com/~lynn/2016h.html#70 "I used a real computer at home...and so will you" (Popular Science May 1967)
http://www.garlic.com/~lynn/2016h.html#71 "I used a real computer at home...and so will you" (Popular Science May 1967)
http://www.garlic.com/~lynn/2016h.html#79 "I used a real computer at home...and so will you" (Popular Science May 1967)
http://www.garlic.com/~lynn/2017g.html#5 RFE? xlc compile option for C integers to be "Intel compat" or Little-Endian
http://www.garlic.com/~lynn/2017g.html#109 Online Terminals

-- 
virtualization experience starting Jan1968, online at home since Mar1970