The AS/400 is IBM's latest offering in the minicomputer market, designed to provide SAA (System Applications Architecture) connectivity to the IBM PC, PS/2 and mainframe (System 370). The integration of functions on this machine, together with the menu-driven interface and the enhanced connectivity options, make it a notable new component in commercial data processing. This book contains state-of-the-art information on programming languages, query communications and other topics of interest to those who wish to become acquainted with the many functions of this machine.