[SIGCIS-Members] Telegram service ending soon - have any other info technologies actually died?

rduarte rduarte at fsu.edu
Tue Jun 18 10:44:29 PDT 2013

Thanks for the article.

> So, can anyone come up with another information technology that has definitively and verifiably vanished completely from use? Specific products don’t count.

Maybe http://en.wikipedia.org/wiki/Heliograph


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