This started as a series of articles for ThemNews, the bimonthly journal of Thematics Southern Africa, covering (in most cases) one Cyber Hero at a time who has contributed to the development of the computer. The first monograph appeared in June 2005. Some of the articles have been published in international philatelic magazines, like Thema and Topical Time.
● Mohammad ibn Musa al-Khawarizmi
       
Published in: ThemNews, June 2005, Vol. 6, no.2
● Pope Sylvester II (a.k.a. Gerbert of Aurillac)
       
Published in: ThemNews, August 2005, Vol. 6, no.3
       
Published (in Dutch) in: Thema (tijdschrift van de Nederlandse
Vereniging van Thematische Filatelie), februari 2006, jaargang 19, nummer 1
       
Published (in Dutch) in: Phila-Info (tijdschrift van de Postzegelvereniging
Philatelica West-Brabant, Nederland), jaargang 8, 3de kwartaal 2008
● Leonardo da Vinci
       
Published in: ThemNews, October 2005, Vol. 6, no.4
● Blaise Pascal
       
Published in: ThemNews, December 2005, Vol. 6, no.5
       
Published (in Dutch) in: Thema (tijdschrift van de Nederlandse
Vereniging van Thematische Filatelie), september 2006, jaargang 19, nummer 4
● Gottfried Wilhelm von Leibniz
       
Published (in Dutch) in: Thema (tijdschrift van de Nederlandse
Vereniging van Thematische Filatelie), november 2005, jaargang 18, nummer 5
       
Published in: ThemNews, February 2006, Vol. 6, no.6
● Joseph Marie Jacquard
       
Published in: ThemNews, June 2006, Vol. 7, no.2
       
Published (in Dutch) in: Thema, februari 2007, jaargang 20, nummer 1
● Charles Babbage
       
Published in: ThemNews, August 2006, Vol. 7, no.3
       
Published (in Dutch) in: Thema, juli 2007, jaargang 20, nummer 3
● Werner von Siemens
       
Published in: ThemNews, October 2006, Vol. 7, no.4
       
Published (in Dutch) in: Thema, november 2007, jaargang 20, nummer 5
● Charles Wheatstone
       
Published in: ThemNews, December 2006, Vol. 7, no.5
● Jean-Maurice-Émile Baudot
       
Published in: ThemNews, June 2007, Vol. 8, no.2
      
Published (in Dutch) in: Thema, juli 2008, jaargang 21, nummer 3
● Elmer Ambrose Sperry
       
Published in: ThemNews, December 2007 /January 2008, Vol. 8, no.5/6
● Lord Kelvin (William Thomson)
       
Published in: ThemNews, August 2008, Vol. 9, no.2
● Thomas John Watson, Sr.
       
Published in: Topical Time (under the
title " Thomas John Watson, Sr. - Super Salesman and Cyber Hero"),
July-August 2008, Vol. 59, no.4, Whole Number 350
● Herman Hollerith
       
Published in: Topical Time (under the
title " Hollerith's Punch Cards"), January-February 2008, Vol. 59, no.1, Whole Number 347
● William Bradford Shockley