Understanding the IIe is also a good book that explains many technical details about the disk hardware. -Jim -- ===============/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/: | Jim Maricondo | jimm@cs.stanford.edu | | Stanford '98 | http://www-leland.stanford.edu/~jagaroth/ | \/\/\/\/\/\/\/\/============================================^