waking computers on LAN

hello everybody………..
i am a student………in my subject networking, our teacher gave us a task….he want me to wake the computers in our school.

PROBLEM:
For example, there are 2 computers (PC 1 & PC 2), both are connected to a switch. The PC 1 is already on while the PC 2 is still off but its AVR is on. Now, my teacher want me to turn on PC 2 with the use of PC 1. What are the steps or the actions that i should do?