He has worked on Unix based computer systems since the beginning of his education. In 1984, he moved to South Africa from UK. After twelve years at Olivetti Systems and Networks, he started his own ISP, Posix Systems, an Internet Service Provider. He has been involved in Computer Communications since 1986.<ref>[http://www.itu.int/ITU-T/worksem/ipv6/200911/bios.html ITU and NRO joint Workshop “Adopting ipv6 – What you need to know”]</ref> | He has worked on Unix based computer systems since the beginning of his education. In 1984, he moved to South Africa from UK. After twelve years at Olivetti Systems and Networks, he started his own ISP, Posix Systems, an Internet Service Provider. He has been involved in Computer Communications since 1986.<ref>[http://www.itu.int/ITU-T/worksem/ipv6/200911/bios.html ITU and NRO joint Workshop “Adopting ipv6 – What you need to know”]</ref> |