Origin of BSOD

"Do you know the origin of term BSOD aka “Blue Screen of Death”? Well, the term “Blue Screen of Death” was not the original acronym for BSOD. The original term meant the “Black Screen of Death” and was seen when running under Windows 3.0. A user would attempt to run a DOS application and instead of the DOS application running, the entire screen would turn black with a blinking cursor in the top left hand corner of the screen. The system was hung and would need to be rebooted."

Bink.nu - Origin of BSOD