Cover: HP-41C Powerful Personal Calculator System Sets New Standards...customize this advanced new handheld calculator by plugging in extra memory, a magnetic card reader, a printer and application modules, by David R. Conklin, Bernard E. Musch, John J. Wong, pg 3-12 Packaging the HP-41C...the liquid crystal display made it interesting for the package designers, by Gerald W. Steiger, pg 7 Card Reader Offers Compatibility and Expanded Capability...more powerful and useful than its predecessors, the HP-41C card reader can read cards written by earlier HP personal calculators, by Patrick V. Boyd, David J. Lowe, pg 12-15 Evolutionary Printer Provides Significantly Better Performance...as the power of a calculator increases, so must the abilities of its printer, by Donald L. Morris, Roger D. Quick, pg 15-19 Bulk CMOS Technology for the HP-41C...this integrated circuit process has many characteristics that contribute to long battery life in a calculator, by Norman L. Johnson, Vijay V. Marathe, pg 20-22 The First HP Liquid Crystal Display...LCD advantages include low-voltage and power requirements and good visibility in strong light, by Craig Maze, pg 22-24 High Density and Low Cost with Printed Circuit Hybrid Technology...silicon integrated circuit chips are mounted directly onto printed circuit boards to save space and cost, by Robert N. Low, James H. Fleming, pg 25-26 An Economical, Portable Microwave Spectrum Analyzer...with a frequency range of 10 MHz to 21 GHz, a calibrated amplitude range of -111 to +30 dBm, and a dynamic range of 70 dB, this new spectrum analyzer has lab-grade performance yet is compact enough for field use, by Richard L. Belding, David H. Molinari, pg 27-32