Re: Standard codes (out of topic !?)

"Meph" <UZS...@uni-bonn.de> writes:

> Neil Franklin <nei...@franklin.ch.remove> schrieb in im Newsbeitrag: 6uwvoa85y6.
fs...@chonsp.franklin.ch...
> > "Meph" <UZS...@uni-bonn.de> writes:
> > >
> > > 1963 ASCII (American Standard Code for Information Interchange)
> > > - specified as 7-bit code for telecommunication and data exchange
> > > - 100 of 128 positions are used (only upper case)
> >
> > Prepend this with: U.S./AT&T Teletype code. Existant at least in 1953
> > (I have used a device built then). Had 64 printable characters (codes
> > 32-95) identical with todays ASCII with a few substitution (no. 95 (_)
> > was then a leftwards facing arrow, no. 94 (^) was an actual upwards
> > facing arrow, possibly others I do not know of).
>
> Interesting, do you know where I can found a reference about this
> code ?

Well actually what I looked up was an old paper based one. Most likely
out of print now.

Apart from that alt.folklore.computers is the best source on such
stuff. I have archived these discussions:

http://neil.franklin.ch/Usenet/alt.folklore.computers/19971216_Old_ASCII_FS_GS_RS_etc
http://neil.franklin.ch/Usenet/alt.folklore.computers/19981111_ASCII
http://neil.franklin.ch/Usenet/alt.folklore.computers/19990907_1963_version_of_ASCII
http://neil.franklin.ch/Usenet/alt.folklore.computers/19991031_The_history_of_ascii


> I'm not sure about the following...
> I have read something about a (not standardized) code called FIELDATA (1957?).
> It was developed by the US Army and one of his developers worked later
> on the ASCII. Therefore FIELDATA might have had influenced the ASCII !?

According to 19990907_1963_version_of_ASCII the ASCII Esc (27) code is
a legacy of Fieldata.


> > > 1981 IBM Codepage 437
> > > - IBM uses the 8 bit and extended the code to 256 positions
> >
> > 8 bit, but neither a predecessor to ISO-8859 (that is why DOS texts
> > make such a mess on Usenet), nor the first 8bit code. The honour of
> > both of those goes AFAIK to an DEC character set from the mid/late
> > 1970s (VT52 or VT100 terminal character set).
>
> Where would you sort the Codepage 437 in ?

Parallel development.


> > > (it exists no code   called ANSI !)
> >
> > The name ANSI properly refers to a set of terminal control codes
> > (function key reporting, cursor positioning, font switsching etc)
> > derived from the DEC VT100 terminal code.
> >
> > What is today often misscalled ANSI is the PC/MS-DOS character set,
> > which is actually pure IBM Codepage 437.
>
> I think Microsofts curious usage of the the word 'ANSI' is the reason
> for this problem.

Actually this one for once is not even Microsofts fault. Wow!

Their uses of the term ANSI was in the ANSI.SYS driver, that replaced
the standard MS-DOS "glass teletype" screen driver with an ANSI terminal.

How and who the started calling the character set ANSI I do not
know. But I doubt that to have been Microsoft (its not done so in
their official docs).


--
Neil Franklin, nei...@franklin.ch.remove http://neil.franklin.ch/
Nerd, Geek, Hacker, Unix Wizzard, Sysadmin, Roleplayer, Mystic
Computer: a toy, speeds work so that you have more time to play

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