Say I am doing a long download. How can I keep the Mac stays sufficiently awake but with minimum power usage?
I would also like minimum power when:
- I am using it as a surveilance camera.
- I want it to be available for requests from the Wi-Fi network.
- Picasa/Google photo backup
OS X Yosemite
Also how do I avoid that some passerby put it to sleep (to sleepy)