Complex sentence: One of my favorite stories about learning how to program, was written by a talented programmer and comp.lang.c newsgroup contributor named Peter Seebach, who describes how he gradually learned (somewhat unexpectedly) by growing up tinkering with the source code of a Unix game called Hack.
Split into simpler sentences: One of my favorite stories about learning how to program was written by a talented programmer and comp.lang.c newsgroup contributor named Peter Seebach. He describes how he got introduced to computer programming by tinkering with the source code of a Unix game called Hack.