The evolution of Wired Intercom
by Simon Browne & Ed Fitzgerald Issue 93 - September 2014 Early Beginnings What do you think was the fi rst DIGITAL communications system devised? Of course you could think of the evolution in standardised parallel data backplanes and digital ICs in the 1980s and the swathe of multi-rack Time Division Multiplexed switching systems that it enabled,...
Submitted by Simon Browne
Published 01 October 2014
