Dr. Chris Horn, co-founder of Iona, president of Engineers Ireland, and member of the Irish Innovation Taskforce, gave a keynote at the Dublin Web Summit a few weeks ago.
He began by giving us some history. 30 years ago, he was a PhD student in TCD's computer science department. In 1981, he had his first visit to Silicon Valley because at that time TCD computer science had some links with Stanford computer science. When he went to the computer science department he met two young guys working on graphics hardware, Andy Bechtolsheim and Bill Joy, who later went on to co-found Sun Microsystems. Chris thought "we're as good as these guys, why can't we set up a company like this from Dublin, Ireland". He talked to other people at home doing interest things with software and hardware ("geeks like me") and they decided that they were going to start a company.