Posted 13 September 2012 - 10:42 PM
#1: RichardG had the turtle make the computer a peripheral (peripheral.wrap("front")) and then have it reset, which I think is something like per.shutdown(), per.start(), where per is the variable for the wrapped computer.
#2: That depends on what you are doing, but most times, you are going to be using os.pullEvent("key"), which will wait for a key to be pressed. Then, just have an if statement looking for those specific keys, and have them do what you want.
#3: You can find this in the config file. For most programs, though, you will want to check it, by using x, y = term.getSize(). The x variable will be the number you are looking for.