In the days of old, when engineers were bold

摘要

In the 1970s, around the time that MOS Technology introduced the 8-bit 6502 processor, I took a job as chief engineer at a company that developed, manufactured, and supplied military and industrial security-monitoring systems. Job 1 was an intermittent problem in the current model that caused the watchdog timer to reset the system. The default condition for a system reset was to secure all doors and sensors throughout the monitored areas to condition "red."