This multi-faceted new handbook explains and demonstrates the essential internals of IBM's AIX. UNIX-oriented programmers who develop operating systems, device drivers, etc., and applications programmers who need the AIX kernel to efficiently allocate and use system resources will find this book particularly valuable because it shows exactly how the AIX kernel is different from other major versions of UNIX; the AIX/PowerPC tie-in - a particularly strong market indicator for the future success of AIX and the programmers who know it; concepts behind the RISC System/6000; components of the AIX process image; the total virtual memory supported by AIX 3.2; process management of AIX Version 3; the AIX Version 3 journaled file system; generic aspects of file I/O with regard to disk files; specnodes, devnodes, and fifonodes new to AIX 3.2; interprocess communication; how to add AIX kernel extensions ... and more.