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Steve Jobs wanted the first iPhone to have no SIM card slot - 9to5Mac
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Who invented world first SIM card? - Quora
GameChangers Meet Simon Petrus: The Young Namibian Who Invented A Cell Phone That Doesn't Require Sim card or Airtime | Duchess International Magazine
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SIM card - Wikipedia
Singapore Creative Technology Founder Sim Wong Hoo Dies at Age 67, Invented Popular Sound Blaster Card & First Singapore Company Listed on Nasdaq in 1992 Reaching $1.6 Billion Market Value in 1994 | Caproasia
More planet, less plastic: Fast facts about the sim cards
What is a SIM Card and What Does It Do: The Simple History of SIM Cards
