On 16.06.2021 13:08, muta...@gmail.com
> On Wednesday, June 16, 2021 at 8:54:42 PM UTC+10, wolfgang kern wrote:
>>> And would you consider HTML to be "just another
>>> terminal like the VT220"?
>>> Or is HTML considered to be a different paradigm?
>> It is NOT a terminal at all !
>> HTML is nothing else than a text-based script which
>> is interpreted by the receiving browser.
> Is there any reason why sending a 3270 data stream
> including Set Buffer Address etc to a 3270 terminal
> is any different from sending an HTML data stream
> including <HTML> and <br> to a theoretical HTML
> Are you saying that EBCDIC ANSI is illegitimate too?
> ie sending x'27' [ 2 J etc in EBCDIC.
> What's the technical definition of a "terminal"?
it means communication hardware, not a program nor a transfer protocol.
A device with a keyboard and/or screen is also called a terminal.
so a COM-port is hardware, following RS232 rules. this AT.. commands
control a phone modem and not the COM-port. A modem may use RS232.
LPT was hardware, (p2p bidirectional parallel, null-modem etc).
TTY was hardware, (phone-line) used (ASCII) transfer protocol.
IBM terminal connectors were hardware, used EBCD protocol.
HTML and JAVA are just text based scripts,
internet uses its own transfer protocol [query| etc.]
ANSI ESC codes belong to protocols [used in printers/codecs/modems]
and got nothing to do with the hardware where they may be used on.
you mix definitions because you don't know the difference.