V = √P*R
RED
It doesn't really do anything active wise but it is used to reduce current flows, adjust signal levels, and to divide voltage.
It was the Osborne 1 made by Adam Osborne in 1981.
Answer: Time division multiplexing
Explanation: because a slot is equivalent to 125ms
And each position inside a slot is for each signal and a single bit frim each voice conversation is sent during each 125ms slot