"But ASCII had a practical path to UNICODE because ASCII, unlike EBCDIC, kept 
important code points static.  EBCDIC made the irreparable mistake of 
overloading common code points rather than colonizing the 256-character 
wilderness as ASCII did."

Back in the day, ASCII was a 7-bit code, EBCDIC was 8-bit.
Later the 128 character limitation of 7-bit code became an issue and ASCII 
evolved into a multitude 8-bit variants.


-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Paul Gilmartin
Sent: Monday, November 19, 2018 3:20 PM
To: [email protected]
Subject: Re: So much for THAT excuse | Computerworld SHARK TANK

On Mon, 19 Nov 2018 15:52:44 -0500, Tony Harminc wrote:
>> >
>> >Case sensitivity and null-terminated strings: two historical Unix mistakes 
>> >that have cost untold billions.
>> >
>> And EBCDIC tops them both.  Just count the problems discussed on these lists.
>
>I'd say it's an "EBCDIC in an ASCII world" problem; not anything
>fundamentally wrong with EBCDIC. Imagine if the original IBM PC had
>been an EBCDIC machine. OS/2 and Windows would surely have followed,
>Unicode would've been EBCDIC-based, and we'd live in a different but
>not necessarily worse world.
>
Conversely, if the original S/360 had been an ASCII machine, ...

ASCII antedated EBCDIC.  EBCDIC was the disastrous outcome of IBM's struggle to 
meet schedule and cost targets when IBM "bet the future of the company" on the 
S/360.  IBM won; customers lost.

ASCII suffered a "jungle of incompatible code pages" similar to that of EBCDIC 
-- consider the ISO-Latin variants.  But ASCII had a practical path to UNICODE 
because ASCII, unlike EBCDIC, kept important code points static.  EBCDIC made 
the irreparable mistake of overloading common code points rather than 
colonizing the 256-character wilderness as ASCII did.

And IBM missed a more recent opportunity by not making z/OS UNIX System 
Services ASCII-based like the original IBM PC.

-- gil

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