Mikael Karlsson
Direktør for Teknologi og Forretningsutvikling i Trafsys
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Jeg har rundt 20 års erfaring innen teknologi, med roller som utvikler, arkitekt, prosjektleder og leder, primært innen bank og finans. Nå med blandt annet system som styrer og overvåker tunneler, broer og annet utstyr på veien.
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A celebration of Teletext: The first digital information platform
Teletext was more than just text and numbers on a TV screen.
It was an early digital platform that delivered live information directly into people’s living rooms.
In this lightning talk, we look at how Teletext worked, from data hidden in the TV signal to the broadcast model that made real time information available decades before the internet.
When NRK shut down its Teletext service on 20 August 2025 after 42 years on air, Norway did not just lose a text service. It lost a real time broadcast information platform.
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