Part 1 – First-generation SIM cards (1FF)

The telecommunications industry will never be the same again. SIM cards celebrate 20 years of the mobile revolution with the true story of the 1FF First-Generation SIM. From its very precise origins to its odds-defying characteristics, the 1FF SIM rightly warrants its designation as ‘The Mother of All SIMs’. The origins of 1FF SIM cards

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