Doyoukonw?（你知道吗?）帮帮忙,一道英语题.thefirstradiosbeganinthe1920satthattimethesoundwasverypoor.soproplehadtolistenonheadphones.televisionbeganinthe1930s.itwasblackandwhite.inthe1960s,thetvprogramme

Question

Do you konw?（你知道吗?） 帮帮忙,一道英语题.
the first radios began in the 1920s at that time the sound was very poor.so prople had to listen on head phones.
television began in the 1930s.itwas black and white.inthe 1960s,the tv programmes begab to have colour.
do you know when computers begin?
急急急急急急急急急急急急急急急！谢

Answer 1

Computers began at Feb.15th, 1946, the first computer was named Eniac.
电脑于1946年2月15日诞生,第一台电脑名叫Eniac
希望对你有帮助,谢谢!