What is "blue screen"

n. 1 (context film English) The filmmaking technique of shooting foreground action against an evenly-lit monochromatic background for the purpose of removing the background from the scene and replacing it with a different image or scene. 2 (context film English) The visual effect resulting from this technique as well as the colored screen itself, especially blue. 3 (context computing English) (short for blue screen of death English)

Blue screen, Blue Screen or bluescreen may refer to:

• Blue Screen of Death, a fatal system error screen in Microsoft Windows
• Blue white screen, an assay useful in biotechnology
• Chroma key or blue screen compositing, a technique for combining two still images or video frames
• Blue Screen (novel), a 2006 novel by Robert B. Parker

Blue Screen is a crime novel by Robert B. Parker, the fifth in his Sunny Randall series.