These are industrial computers used to automate processes. They are programmed to monitor inputs and outputs, and make decisions based on the program and the current state of the inputs.
On the third night after the blackout, when the city's hum had thinned to a whisper and the neon above the transit loop blinked in a slow, patient Morse, she crouched beneath the maintenance hatch of Line 7. Her palms were oily from conduit work; her breath fogged in the cold crawlspace. Above her, the station's HMI—an industrial slab of glass and scarred metal—was dead, its touchscreen a black mirror. Someone had scrawled a name in marker on the frame: Plc Hmi Password Unlock V4.2 -2021-. Plc Hmi Password Unlock V4.2 -2021-
: Windows 7, 8, 10, and 11 (both 32-bit and 64-bit). RAM Requirements : Minimum 4 GB. Storage : 200 MB free space. These are industrial computers used to automate processes