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The Barcode invention was derived from the formatting of Morse Code. The inventors of the Barcode were Norman Woodland and Bernard Silver.
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March of 1979, Michel Ugon created the first operational microprocessor card which was known as the Bull CP8. The card had a memory chip and a microprocessor. These were considered to be the first intelligent cards behind Magnetic card readers.
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Door contacts have been based on a reed switch, which was invented in 1936 by Walter Ellwood. A basic reed switch is comprised of two magnetic contacts sealed inside of a glass envelope. It was eventually developed to be in many access control devices
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In 1954, Dee Horton and Lew Hewitt invented the first sliding automatic door. The automatic door used a mat actuator. Not too later they sold the first automatic sliding door in America in 1960.
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Maria van Britten Brown was an American nurse that invented the idea of the security camera. Followed by her spouse Albert Brown. The patent their video home security system 3 years later.