>We both got horrible grades in high school despite having the intelligence to do better I'm not sure that's true, other sites report he got a 4.0. http://www

>We both got horrible grades in high school despite having the intelligence to do better I'm not sure that's true, other sites report he got a 4.0. http://www.notablebiographies.com/news/A-Ca/Carmack-John.html http://www.notablebiographies.com/news/A-Ca/Carmack-John.htm... http://www.statemaster.com/encyclopedia/Carmack http://www.statemaster.com/encyclopedia/Carmack