Long before people understand by a guide device in the car sort of global positioning system (GPS), a product called Iter Avto already made in Spain in 1930. Don’t imagine the sophisticated like in-car devices that rely on satellites such as made Alpine (1981) or Etrak (1983), orbe asked to designate the road with our voices (the latter is recognized even make trouble). Iter Avto much simpler, just rely on the paper roll as a walking map.
Iter Avto actually more like a map in the form of a roller which moves with the motion of the car. Map rotates in the middle, like a screen. Then the principle of rotation similar to the speedometer which moves rely on the wheels. Iter Avto was placed just as people today put a global positioning system (GPS), which is in the middle under the dash.
A roll of paper illustrated the path and name of the dots and then pinned in it. Its use depends on the location that is being addressed. If the user wants go to London for example, they must install a roll of special maps of London. If you move, have to change reels.
The existence of any Avto Iter is unclear, the producer and creator names like lost by time.
However, if we talk "who the first time made", the guide on the road already made similar in England, even 10 years earlier or the range of 1920. The device, called Plus Fours Route finder is even more simple. Shaped like a wristwatch. The principle works the same as the Iter Avto, using the roll map. But the moving is manual by playing round with your fingers.
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