Once it all started with equipment that took up half a room and weighed several tons. There was an interesting moment in the history of cryptography when it was necessary to move from the analog world to the digital world. And the main problem was not how, but it was necessary to create this digital world in order to introduce encryption into it. And this story is only about this small but important piece of life, which led to the creation of the M-803 device: a digital phone that runs on film.

Once it all started with equipment that took up half a room and weighed several tons. There was an interesting moment in the history of cryptography when it was necessary to move from the analog world to the digital world. And the main problem was not how, but it was necessary to create this digital world in order to introduce encryption into it. And this story is only about this small but important piece of life, which led to the creation of the M-803 device: a digital phone that runs on film.

An ideal video for those who always build slowly and have little RAM for containers. Then they solved the problem of how to digitize sound, with the computing power of a calculator made from tractor spare parts.