RCA

Từ điển Oxford Advanced Learner 8th

RCA [RCA] BrE NAmE
(in fullthe Radio Corporation of America)
a large US company producing electronic equipment, especially for radio, television and music. It was started in 1919. It began the ↑RKO film company in 1921, sent the first photographs by radio (from London to New York) in 1924, and established ↑NBC in 1926.