Foreground p.10 JOYSTICK INTERFACES [author Steve Ciarcia] An interface for every purpose p.20 INTRODUCTION TO MULTIPROGRAMMING [author Mark Dahmke] Some basic concepts p.34 INTERFACE A CHESSBOARD TO YOUR KIM-1 [author Jeff Teeters] Play chess with a computer as easily as with a human opponent p.70 A LOW-SPEED ANALOG-TO-DIGITAL CONVERTER [author Richard C Hallgren] Perform real-time data analysis p.96 THE NATURE OF ROBOTS, Part 4 [author William T Powers] A simple, human experiment p.118 INEXPENSIVE, OPTICAL PAPER-TAPE READER [author Brian A Harron] A manual paper-tape reader with no moving parts p.130 A MODEL OF THE BRAIN FOR ROBOT CONTROL, Part 4 [author James Albus] Decision-making procedures Background p.62 SOME MUSINGS ON HARDWARE DESIGN [author Clayton Ellis] Simple design techniques p.84 SOLDERING TECHNIQUES [author William Trimmer] A picture essay p.160 HANDY PULSER [author Bob Chrisp] A simple, circuit-debugging tool p.182 THE AMSAT-GOLEM-80 [author Joe Kasser] A modular and inexpensive S-100 computer system p.196 ADD SOME CONTROL TO YOUR COMPUTER [author Ken Barbier] Let your computer influence the outside world Nucleus p.6 Editorial: The Rationale of Yet Another Homebrew…