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The software device "Signal-201" since the beginning of 1990 has been manufactured by the Oryol plant of the Rudnev UMF. The device can find the following application: turn on and turn off the TV in time; automatically turn on and off the battery charger; according to a given program, it will turn on and off the electric lamps, the fan and the air humidifier to create a comfortable environment in the apartment; on time to turn on or off the electric lighting, radio and tape recorder; at the optimal time, automatically turn on and off the pumps for watering the garden or vegetable garden. Electrical appliances connected to the device can be automatically turned on and off sixteen times each according to predetermined programs.