Quadruplex
Encyclopedia
Quadruplex may refer to:
"Quadruplex" can also refer to a building split into four apartments, similar to a duplex
- Quadruplex telegraphQuadruplex telegraphThe Quadruplex telegraph is a type of electrical telegraph which allows a total of four separate signals to be transmitted and received on a single wire at the same time Quadruplex telegraphy thus implements a form of multiplexing.The technology was invented by American inventor Thomas Edison, who...
, an improvement on the electrical telegraph patented in 1874 by Thomas Edison - 2 inch Quadruplex videotape2 inch Quadruplex videotape2-inch quadruplex videotape was the first practical and commercially successful analog recording videotape format. It was developed and released for the broadcast television industry in 1956 by Ampex, an American company based in Redwood City, California...
, the first practical and commercially successful videotape format - G-quadruplexG-quadruplexIn molecular biology, G-quadruplexes are nucleic acid sequences that are rich in guanine and are capable of forming a four-stranded structure...
, the four-stranded nucleic acid structure that is, among scientists, sometimes referred to as a quadruplex.
"Quadruplex" can also refer to a building split into four apartments, similar to a duplex
Duplex (building)
The term duplex can be used to describe several different dwelling unit configurations:A duplex house is defined as a dwelling having apartments with separate entrances for two families. This includes two-story houses having a complete apartment on each floor and also side-by-side apartments on a...