Define and explain??asynchronous computer mediated communication??and??synchronous

By the time the Federal Radio Act was enacted, the government was primarily concerned with regulating the types of content that could be allowed on the airwaves

Indicate whether this statement is true or false.

In miking a podium speaker, which of the following arrays is often sufficient?

a. one omnidirectional microphone b. one cardioid or supercardioid microphone c. two coincident cardioid or supercardioid microphones d. two near-coincident cardioid or supercardioid microphones