ComputerCraft is an addon that adds drones that can do many tasks, such as felling, attacking, collecting items, excavating, etc. Which are all completely done automatically, without a player's help.

Probably not. Turbine support seriously ups the complexity of both the program and the setup needed to use the program. Check out this script if you want a nice program with turbine support. To ...

This program controls a Big Reactors nuclear reactor in Minecraft with a Computercraft computer, using Computercraft's own wired modem connected to the reactors ...