Sorry for everyone i disappointed hope ur happy with out me free points

According to the article in wiki answer, digital communication systems have more benefits than analog systems. they are faster and more flexible, and they offer better performance than analog communication

The first c.d. was released after the phonograph. 75 years 200 years 100 years 50 years

Most of the written music that has been preserved from the middle ages is a. sacred. b. for flute and guitar. c. polyphonic. d. dance music.