Changes

Dr. Jennings' career has seen him pursuing venture capital endeavors, investments, serving on a variety of boards and within academia.   

Dr. Jennings' career has seen him pursuing venture capital endeavors, investments, serving on a variety of boards and within academia.   

He co-founded [[4th Level Ventures]] in 2002, and continues to work. 4th Level Ventures is a 17 million pound Irish venture capital company; it aims to invest in companies that are commercializing on opportunities arising form Irish research and academic institutions. Dennis is also an angel investor in a variety of early stage technology companies.<ref>[http://www.creditexpo.ie/team/team.html Creditexpo]</ref>  

He co-founded [[4th Level Ventures]] in 2002, and continues to work. 4th Level Ventures is a 17 million pound Irish venture capital company; it aims to invest in companies that are commercializing on opportunities arising form Irish research and academic institutions. Dennis is also an angel investor in a variety of early stage technology companies.<ref>[http://www.creditexpo.ie/team/team.html Creditexpo]</ref> As of 2007, Dennis and 4th Level's other founder, [[Ray Norton]], had invested in over a dozen companies as angel investors, and he claims that about half of those investments are looking "very promising".

Dr. Jennings was the director of University College Dublin (UCD) Computing Services from 1977 to 1999; he was responsible for the university's IT infrastructure and a staff of over 90 people. In 1986, he took leave from the University and acted as interim President of the Consortium for Scientific Computing at the John von Neumann Centre (JvNC) in Princeton, New Jersey; he took charge of starting its super computer center. Dennis is currently acting as Chairman of the Oversight Board of the Irish Centre for High-End Computing (ICHEC). <ref>[http://www.icann.org/en/biog/jennings.htm ICANN.org]</ref>

Mr. Jennings has been able to take time off from his academic career and develop 4th Level Ventures thanks to an early investment in [[Euristix]] in the 90s; that company was first purchased by Fore Systems for $81 million, and subsequently purchased by [[GEC-Marconi]] for $2.8 billion.<ref>[http://www.independent.ie/business/technology/irelandrsquos-real-net-pioneer-1115628.html Independent.ie]</ref>

===NSFnet===

===NSFnet===

He was also integral in creating [[NSFnet]], in 1985-86, which is the network that preceded the  Internet.<ref>[http://www.creditexpo.ie/team/team.html CreditExpor.ie]</ref> Thus, he was directly responsible for creating the internet as we know it; it was his decision to use the [[TCP/IP]] Protocols out of the military ([[DARPA]]) and select academic environments, where they exclusively existed, and link together 300+ universities. It was an ambitious move that he believes would have happened eventually; but, alas, he was the one responsible and he paved the way for the further expansion of the network into the Internet through his work. The initiative that he led cost the U.S. government some $17 million USD.<ref>[http://www.independent.ie/business/technology/irelandrsquos-real-net-pioneer-1115628.html Independent.ie]</ref>

He was also integral in creating [[NSFnet]], in 1985-86, which is the network that preceded the  Internet.<ref>[http://www.creditexpo.ie/team/team.html CreditExpor.ie]</ref> Thus, he was directly responsible for creating the internet as we know it; it was his decision to use the [[TCP/IP]] Protocols out of the military ([[DARPA]]) and select academic environments, where they exclusively existed, and link together 300+ universities. It was an ambitious move that he believes would have happened eventually; but, alas, he was the one responsible and he paved the way for the further expansion of the network into the Internet through his work. The initiative that he led cost the U.S. government some $17 million USD.<ref>[http://www.independent.ie/business/technology/irelandrsquos-real-net-pioneer-1115628.html Independent.ie]</ref>