Woodville Latham and his two sons, Otway and Grey demonstrated the first movie projector in the US
Answer:
A: Radio waves.
Explanation:
Computers use short-wave radio in order to communicate with devices in it's immediate vicinity.
It should be compiled. It won't work if it's not compiled.
Answer:
User Datagram Protocol (UDP) , transport-layer segment.
Explanation:
The User Datagram Protocol is popularly known as UDP. It is defined as the communication protocol which is used across the internet for any time sensitive transmission like the DNS lookup or the video playback.
The UDP provides a unreliable and connectionless service to a invoking application.
The transport layers on sending side converts the application 
messages which it 
from the 
into a transport layer segment called as the transport layer segments. This is achieved by breaking down the application messages into a smaller chunks and then adding the transport layer header into each chunk so as to create a transport layer segment.
Answer:Life360 has a free version and a paid
Explanation:Life360 let’s you track family by placing them in “family circles” and then allows you to track their location once they accept the invite to the circle, you May also place specific areas that it will alert them entering and exiting.
