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  2. Rolling code - Wikipedia

    en.wikipedia.org/wiki/Rolling_code

    A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'. Such systems are typical in garage door openers and keyless car entry systems.

  3. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    Remote keyless entry fobs emit a radio frequency with a designated, distinct digital identity code. Inasmuch as "programming" fobs is a proprietary technical process, it is typically performed by the automobile manufacturer. In general, the procedure is to put the car computer in 'programming mode'.

  4. Garage door opener - Wikipedia

    en.wikipedia.org/wiki/Garage_door_opener

    The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.

  5. GM-NAA I/O - Wikipedia

    en.wikipedia.org/wiki/GM-NAA_I/O

    The GM-NAA I/O input/output system of General Motors and North American Aviation was the first operating system for the IBM 704 computer. [1] [2] It was created in 1956 by Robert L. Patrick of General Motors Research and Owen Mock of North American Aviation. [1] It was based on a system monitor created in 1955 by programmers of General Motors ...

  6. Smart key - Wikipedia

    en.wikipedia.org/wiki/Smart_key

    The first KeylessGo ECU of the Mercedes-Benz S-Class. The smart key allows the driver to keep the key fob pocketed when unlocking, locking and starting the vehicle. The key is identified via one of several antennas in the car's bodywork and an ISM band radio pulse generator in the key housing.

  7. Immobiliser - Wikipedia

    en.wikipedia.org/wiki/Immobiliser

    The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbuel and patented in 1919. [2] They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. [3]

  8. GMC Sprint / Caballero - Wikipedia

    en.wikipedia.org/wiki/GMC_Sprint_/_Caballero

    The Sprint's first year was also the first year for mandated lower-octane unleaded fuel which necessitated a reduction in engine compression; GM's A.I.R. system, a "smog pump", was added to control tailpipe emissions. 1972 was the last year for the third generation El Camino, resulting in a two-year generation for Sprint.

  9. Chevrolet Beretta - Wikipedia

    en.wikipedia.org/wiki/Chevrolet_Beretta

    Alongside the four-door Chevrolet Corsica, the Beretta served as the successor to the Chevrolet Citation. Slotted between the Cavalier and Lumina/Monte Carlo coupes, the Beretta was distinguished by its vertical door handles mounted on the B-pillar, a design feature later used by the Chevrolet Lumina coupe and its GM W-body counterparts.

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