Q1)If we want to connect two PORTs that are belongs to two different PICs ;to get maximum possible data transfer rate .Should we use (serial) or (parallel) interface ? why?

Q2)Can serial (wireless mouse) use synchronous or asynchronous modes for data transfer with PIC? Why?

Q3)Write MikroC code to repeatedly do following :

Simultaneously ,switch on [(red LED) and (220 volts AC fan)] both are connected to (any two bits of any same PIC16F887 port) (you are free to choose any port ,and free to choose bits positions) .Choose on time (you are free to choose any time) ,while off time(switch off both fan and LED) is half of on time(chosen by you) .In the configuration part of your code ,configure PIC to work with any external clock value(you are free to choose any value within HS mode) .Draw circuit diagram ,(include drawing of clocking circuit connected to osc1 and osc2 pins)