1926 – The National Broadcasting Company radio network opened with 24 stations. It was a joint creation of RCA, General Electric and Westinghouse. AT&T provided the spark for the network by selling WEAF to RCA.
1971 – Intel released the world’s first commercial single-chip microprocessor, the 4004 with an advertisement in Electronic News, though the chip may have been delivered earlier in the spring to some customers. It was the first complete CPU on one chip.
2001 – Microsoft entered the game console war with the first Xbox going on sale in North America. It pitted Microsoft against Sony’s PS2 just three days before Nintendo’s GameCube went on sale.
2013 – Sony’s PlayStation 4 game console went on sale with a big event in New York where Sony rented out the entire Standard Hotel.
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