In the 1950s, magnetic recording of digital computer data on plastic tape coated with iron oxide was invented. Magnetic recording on steel tape and wire was invented by Valdemar Poulsen in Denmark around 1900 for recording audio.
It was later switched to the back side.Ī smartphone or smartwatch can store content from the card issuer discount offers and news updates can be transmitted wirelessly, via Internet These virtual cards are used in very high volumes by the mass transit sector, replacing paper based tickets and earlier MagStrip cards. Note that the narrow magnetic stripe is on the front of the card. Front side of the first Magnetic Stripe plastic credit card.
0 kommentar(er)
