History of character codes

[Deborah W. Anderson]

Does anyone have a recommendation on a website or book that adequately covers the history of character codes, other than the TRON site at http://tronweb.super-nova.co.jp/characcodehist.html? Is there anything available that goes through the early period up through and including Unicode? (I like Roman Czyborra's pages at http://www.czyborra.com �, but I was wondering whether there is a site/book that covers--in one swoop--the early period as well.)   With many thanks, Deborah Anderson Researcher, Dept. of Linguistics UC Berkeley