Commodore Amiga 30 years the climate system operates at a large public school Michigan

City of Grand Rapids in northern Michigan - the second largest in the state. In it lies a complex of 19 buildings of public school in Grand Rapids, GRPS. Climate systems, heating and air conditioning in all buildings operates one computer Commodore Amiga , which has more than 30 years.

One student wrote to his school program, climate control equipment. In case of problems with the computer program or the administration still drawn to this former student, who lives near the school.

To communicate with the sensors, the system uses radio modems at 1200 baud. The computer periodically sends requests and receives responses from the sensors. The problem is that the frequency of overlap with the frequency radios used by the staff, so sometimes these do not reach your computer because of the distortion of the signal.



Tim Hopkins, the school caretaker, said that the computer was purchased to replace the previous unit, which was "the size of a refrigerator." The computer controls the operation of boilers, fans, pumps, and receives data from temperature sensors.



Hopkins said that violate the universal principle of "work - do not touch" the time has come because a computer has become difficult to find spare parts. During this time, he had, in particular, to change the mouse and two monitors.

According to managing school, installation of a new system would cost about $ 2 million. The need to replace the outdated system was discussed even 4 years ago, but then the budget went to the more urgent projects.

Source: geektimes.ru/post/251920/