Name: Sebastián Sánchez Prieto Birth place: Barreras (Salamanca), Spain Date: 10-02-1968 Title: - Graduate in Telecommunications Engineering, Universidad Politécnica de Madrid, December 1994 - PhD. in Telecommunications Engineering, Universidad de Alcalá (Madrid), February 1998, Maximum Mark: Apto Cum Laude por Unanimidad Sebastián Sánchez Prieto receives the B.S. degree from the Universidad Politécnica de Madrid (UPM) and the Ph.D. degree from the Universidad de Alcalá. He is now Staff Lecturer of the Computer Engineering Department at the University of Alcalá in Spain where his research and teaching activities are in the areas of Operating Systems, Computer Architecture and Embedded Systems. He has wrote several books related to Operating Systems, UNIX and Linux subjects. He has participated actively in several national and international research projects in the area of hardware and software on-board satellites such as SOHO, PHOTON and FUEGO 2. He is active in the libre software word since 1993 and currently he is interested in libre software engineering and education.