Hewlett Packard JournalTechnical Information from the Laboratories of Hewlett-Packard Company     Calculator-Related Articles       data courtesy of Rick Furr, rfurr@vt.edu------------------------------------------------------------June 1972 Vol. 23 No. 10-35Apages 2-9The 'Powerful Pocketful': An Electronic Calculator Challenges  the Slide Rule- This 9 ounce, battery-powered scientific calculator, small  enough to fit in a shirt pocket, has logarithmic,  trigonometric, and exponential functions and computes  answers to 10 significant digits.by T.M. Whitney, F. Rode' and C.C Tungpage 5Operational Stacks and Reverse Polish Notationpage 7How the HP-35 Compares with the Slide Rulepages 10-11Algorithms and Accuracy in the HP-35- A lot goes into that little machine when it's computing a   transcendental function.by D.S. Cochranpages 12-13Packaging the Pocket Calculator- The industrial design of the HP-35 was of primary  importance, often taking precedence over electrical  considerations.by Edward T. Liljenwall------------------------------------------------------------May 1973 Vol. 24 No. 9-80A-9866Apages 2-8A Pocket-Sized Answer Machine for Business and Finance- This new 9 ounce, battery-powered calculator replaces most  commonly used financial tables, such as compound interest,   annuities, and bonds.  It's also a 200 year calendar.by W.L. Crowley and F. Rode'page 5Examples of HP-80 Solutionspage 8Appendix A -- A Typical HP-80 AlgorithmAppendix B -- Principal HP-80 Equationspages 18-24A Quiet, Low-Cost, High-Speed Line Printer- This thermal printer writes 80 column lines at 250 lines per  minute.  Developed primarily for the 9830A Calculator, it's a   general-purpose printer that's easily interfaced to a variety of   controllers.by Dick B. Barney and James R. Drehlepage 23The Thermal Printhead Story------------------------------------------------------------May 1974 Vol. 25 No. 9-65Apages 2-6The "Personal Computer:" A Fully Programmable Pocket  Calculator- This 11 ounce battery-powered marvel has the computing power  of an advanced scientific pocket calculator and is  programmable as well, so it can adapt to any number of  specialized uses.by C.C. Tungpage 4Self Clocking Two-Track Recording Techniquepages 8-14Programming the Personal Computer- Wherein are revealed the functions of the keys, how problems  are solved, and a bit of what goes on inside.by R.K. Stockwellpages 15-17Designing a Tiny Magnetic Card Reader- Here's how it was designed and how it works.by R.B. Taggartpages 18-20Testing the HP-65 Logic Board- The board and it's automatic test system are designed for  rapid production testing and troubleshooting.by Kenneth W. Peterson------------------------------------------------------------November 1975 Vol. 27 No. 3-21A-22A-25Apages 2-7Three New Pocket Calculators: Smaller, Less Costly, More  Powerful- HP's second-generation pocket calculator family now includes  a basic scientific model, a programmable scientific model,  and a business model.by Randall B. Neff and Lynn Tillmanpage 6An Example of HP-25 Programmingpages 8-12Inside the New Pocket Calculators- The HP-21 type of calculator isn't just a stripped-down  version of older HP pocket calculators, but an entirely new  design.by Michael J. Cook, George M. Fitcher, and Richard E. Whickerpage 10Packaging the New Pocket Calculatorsby Thomas A. Hender------------------------------------------------------------May 1976 Vol. 27 No. 9-2644Apages 2-15New CRT Terminal Has Magnetic Tape Storage for Expanded Capability - Two built-in tape drives make the terminal a stand-alone data   station.  User benefits are reduced on-line time costs, lower   line charges in remote operations, and greatly lessened demand on   computer resources.by Robert G. Norman, Richard L. Smith, and Louis A. Witkinpages 6-7Mini Data Cartridge: A Convincing Alternative for Low-Cost, Removable Storageby Alan J. Richards (Calculator Products Division)page 12Mini-Cartridge Drive Mechanism------------------------------------------------------------June 1976 Vol. 27 No. 10-9815A-9825Apages 2-14Third-Generation Programmable Calculator Has Computer-Like  Capabilities- A new programming language, HPL, helps the user apply the many   technological advances in the personal computing machine to a   wide variety of computation and control problems.by Donald E. Morris, Chris J. Christopher, Geoffrey W. Chance, and Dick B. Barneypage 59825a Product Designpage 139825A Cartridge Tape Unitpages 15-18High-Performance NMOS LSI Processorby William D. Eads, David S. MaitLandpages 24-32Mid-range Calculator Delivers More Power at Lower Cost- Its design takes advantage of the latest technology, principally   a single-chip microprocessor.by Douglas M. Clifford, F. Timothy Hickenlooper, and A. Craig Mortensen------------------------------------------------------------November 1976 Vol. 28 No. 3-67A-97Apages 2-8A Pair of Program-Compatible Personal ProgrammableCalculators- One is a small, portable printing calculator and the other  is a hand-held version without a printer.  Both versions  feature a "smart" magnetic card reader, and each can run the  other's programs.by Peter D. Dickinson and William E. Egbertpages 9-18Programmable Scientific Calculator Has Built-In Printer- It's the first of a new generation of small, portable,  printing calculators that operate on rechargeable batteries  or line current.by Bernard E. Musch and Robert B. Taggartpages 16-17The New Accuracy:  Making 2^3 = 8by Dennis W. Harms------------------------------------------------------------May 1977 Vol. 28 No. 9Algorithms Ipages 22-24Personal Calculator Algorithms I:  Square Roots- A detailed explanation of the algorithm used by HP hand-held   calculators to compute square roots.by William E. Egbert------------------------------------------------------------June 1977 Vol. 28 No. 10Algorithms IIpages 17-20Personal Calculator Algorithms II: Trigonometric Functions- A detailed explanation of the algorithms used by HP  hand-held calculators to compute sine, cosine, and tangent.by William E. Egbert------------------------------------------------------------October 1977 Vol. 29 No. 2-92Apages 22-28Printing Financial Calculator Sets New Standards for Accuracyand Capability- This briefcase-portable calculator has several new functions  and is exceptionally easy to use.  Most important, the user  need not be concerned about questions of accuracy or  operating limits.by Roy E. Martin------------------------------------------------------------November 1977 Vol. 29 No. 3Algorithms IIIpages 22-23Personal Calculator Algorithms III: Inverse TrigonometricFunctions- A detailed description of the algorithms used in  Hewlett-Packard hand-held calculators to compute arc sine,  arc cosine, and arc tangent.by William E. Egbertpages 26-32An NMOS Process for High-Performance LSI Circuits- Fast 16-bit microprocessors, 16k read-only memories, and a  variety of special-purpose random-logic chips are the result of   an NMOS process that produces high-performance large-scale   integrated circuits.By Joseph E. DeWeese and Thomas R. Ligonpages 30-31Application of the NMOS-II Process------------------------------------------------------------December 1977 Vol. 29 No. 4-01Apages 2-10Wrist Instrument Opens New Dimension in Personal Information- It's a digital electronic wristwatch, a personal calculator,  an alarm clock, a stopwatch, a timer, and a 200-year  calendar, and its functions can interact to produce  previously unavailable results.by Andre' F. Marion, Edward A. Heinsen, Robert Chin,  and Ben E. Helmso------------------------------------------------------------April 1978 Vol. 29 No. 8Algorithms IVpages 2-10A Highly Integrated Desktop Computer System- System 45, the new flagship of the HP 9800 Series, gives the user   unprecedented power in a single compact unit.  It offers advanced   capabilities in program documentation. string and matrix   operations, subprograms, program linking, tracing, formatted   output, mass storage, and graphicsby William D. Eads and Jack M. Waldenpages 11-21System 45 Hardware Designby John C. Keith, Louis T. Schulte, and Ansel K. Vogenpages 14-15System 45 Product Designby Ray J. Cozzenspage 20System 45 Tape Control Systemby Richard Kochispage 21System 45 Power Supplyby Dick B. Barneypages 22-28Advanced Thermal Page Printer Has High-Resolution Graphics Capability- This optional System 45 built-in peripheral quietly outputs   program listings or hard copies of anything on the CRT display.by Ray J. Cozzenspages 25-26New Printhead Technology Developed for System 45by Eugene R. Zellerpages 29-32Personal Calculator Algorithms IV: Logarithmic Functions- A detailed description of the algorithms used in  Hewlett-Packard hand-held calculators to compute logarithms.by William E. Egbert------------------------------------------------------------May 1979 Vol 30 No. 5-9835pages 11-12Extending Possibilities in Desktop Computing- This midrange computer's large memory capacity, two languages   (enhanced BASIC and assembly language). low radiated   interference, and powerful input/output facilities suit it   especially well for computation, control, and data acquisition   applications.by Sandy L. Chumbleypages 13-15Processor Enhancements Expand Memoryby Damon R. Ujvarosy and Dyke T. Shafferpages 16-17Designing to Meet Electromagnetic Interface Requirementsby John C. Backerpages 18-20Assembly Programming Capability in a Desktop Computerby Robery M. Hallissy------------------------------------------------------------December 1979 Vol. 30 No. 12-34Cpages 20-26Personal Calculator Has Key to Solve Any Equation f(x) = 0- The HP-34C is the first handheld calculator to have a  built-in numerical equation solver. That's why one of its  keys is labeled SOLVE.by William M. Kahanpage 23Why is Equation Solving Provably Impossible?"The merely Difficult, we do immediately; the impossible will take slightly longer." Old British naval maxim.------------------------------------------------------------March 1980 Vol. 31 No. 3-41Cpages 3-12Powerful 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.  You can reconfigure the keyboard, too.by Bernard E. Musch, John J. Wong, and David R. Conklinpage 5Using USER Modepage 7Packaging the HP-41C- The liquid crystal display made it interesting for the  package designers.by Gerald W. Steigerpages 12-15Card 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 David J. Lowe and Patrick V. Boydpages 15-20Evolutionary Printer Provides Significantly Better Performance- As the power of a calculator increases, so must the  abilities of its printer.by Roger D. Quick and Donald L. Morrispages 20-22Bulk 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 and Vijay V. Marathepages 22-24The First HP Liquid Crystal Display- LCD advantages include low voltage and power requirements  and good visibility in strong light.by Craig Mazepages 25-26High Density and Low Cost with Printed Hybrid Technology- Silicon integrated circuit chips are mounted directly onto  printed circuit boards to save space and cost.by James H. Fleming and Robert N. Low------------------------------------------------------------July 1980 Vol. 31 No. 7-85pages 3-6A New World of Personal/Professional Computation- Now, an inexpensive computer system with integral display, mass   storage, hard copy, and graphics capability is available for   personal use by the technical professional or first-time computer   user.by Todd R. Lynchpages 7-13Adding I/O Capability to the HP-85- With the implementation of I/O features, the capabilities of a   self contained personal computer system ate expandable to control   instruments, add on more powerful peripherals, and even talk to   other computers.by John H. Nairn, Tim I. Mikkelsen, and David J. Sweetserpage 13Using HP-85 I/O Capabilitiesby Tim Mikkelsenpages 14-18A Compact Tape Transport Subassembly Designed for Reliability  and Low Costby Douglas J. Collins and Brian G. Spreadburypages 19-20A High-Quality CRT Display for a Portable Computerby James F. Bauschpages 22-25A Compact Thermal Printer Designed for Integration into a  Personal Computerby Clement C. Lo and Ronald W. Keilpage 24An Efficient Power Supply for the HP-85by Jim Bauschpages 26-27Enhanced BASIC Language for a Personal Computerby Nelson A. Mills, Homer C. Russell, and Kent R. Henscheidpage 28Random Number Generationby Homer Russellpage 30Fast Integer Processingby Homer Russell------------------------------------------------------------August 1980 Vol. 31 No. 8-34Cpages 23-32Handheld Calculator Evaluates Integrals- The HP-34C is the first handheld calculator to have a key  that performs numerical integration almost automatically.  It may change your attitude towards what used to be regarded  as a dreary tedious task.by William M. Kahan------------------------------------------------------------January 1981 Vol. 32 No. 1Bar CodeHEDS300082153Apages 3-10Handheld Scanner Makes Reading Bar Codes Easy and Inexpensive- This lightweight wand contains the light source,  reflected-light sensor, and digital signal shaping circuitry  needed for scanning bar-code patterns reliably.by John J. Uebbing, Donald L Lubin, and Edward G. Weaver, Jr.pages 7-8What is a Bar Code?pages 11-14Reading Bar Codes for the HP-41C Programmable Calculator- A new accesory for HP's most powerful handheld calculator  quickly enters data and programs from printed bar code.by David R. Conklin and Thomas L. Revere III------------------------------------------------------------December 1982 Vol. 33 No. 1282184Apages 16-18Controlling a Graphics Plotter with a Handheld ProgrammableCalculator- The plotter is the 7470A.  The calculator is the HP-41C.by Robert M. Miller and Randy A. Coverstone------------------------------------------------------------January 1983 Vol. 34 No. 182160A-11Cpages 3-10HP-IL:  A Low-Cost Digital Interface for Portable Applications- The Hewlett-Packard Interface Loop is a bit-serial interface  bringing many capabilities formerly reserved for much larger  computer systems to the growing repertoire of portable  computers and handheld calculators.by Roger D. Quick and Steven L. Harperpage 7How Fast is the HP-IL?by Steve Harperpage 8HP-IL Interconnect Systemby James H. Flemingpages 11-16The Electronics Interface for the Hewlett-Packard Interface Loop- This low-cost, low power serial interface uses two-wire  cables, a three-level code, a CMOS IC, and small pulse  transformers.by Carl J. Landsnesspages 16-22A CMOS Integrated Circuit for the HP-IL Interface- This IC, available to OEM designers, makes it easy to add  HP-IL capability to a product.by Steven L. Harperpages 23-29CMOSC:  Low-Power Technology for Personal Computers- To meet the growing need for integrated circuits with more  functions and lower power consumption, an improved CMOS  process has been developed at HP's Corvallis Division.by David E. Hackleman, Norman L. Johnson, Craig S. Lage,  John J. Vietor and Robert L. Tillmanpage 28What is Latch-Up?------------------------------------------------------------February 1983 Vol. 34 No. 244468A DA/C Pac ROMpages 16-19Low Cost Instrument Control: A New ROM for the HP-41 HandheldComputers- Now HP-41 users can control instruments to measure and  analyze a variety of physical parameters on the bench or in  the field.by David L. Wolpert------------------------------------------------------------May 1983 Vol. 34 No. 5-82161Series-10-15C-16Cpages 17-14Compact Digital Cassette Drive for Low-Cost Mass Storage- This portable battery-operated unit uses minicassettes to store   programs and data inexpensively for HP-IL systems.by William A. Buskirk, Charles W. Gilson, and David J. Shelleypages 25-35Scientific Pocket Calculator Extends Range of Built in Functions- Matrix operations, complex number functions, integration,  and equation solving are only some of the numerous  preprogrammed capabilities of HP's latest scientific  calculator, the HP-15C.by Eric A. Evett, Paul J. McClellan, and Joseph P. Tanzinipages 36-40A Pocket Calculator for Computer Science Professionals- This compact, yet powerful pocket calculator is designed for  technical professionals working in computer science and  digital electronics.  Boolean operations and bit  manipulation are some of its capabilities.by Eric A. Evettpage 37Real (Floating-Point) Formatpages 38-39Using the HP-16C------------------------------------------------------------June 1983 Vol. 34 No. 6-75-82168Apages 3-4A Portable Computer for Field, Office, or Bench Applications- This lightweight, battery-powered computer has features that make   it an ideal tool for the traveling professional.by Donald E. Morris, Anthony S. Ridolfo, and Donals L. Morrispages 5-7A Telephone Interface for HP-IL Controllersby Sidnee Snell and Brian G. Spreadburypages 8-9HP-IL and the HP-75 Portable Computerby Dennis C. Yorkpages 10-14High-Capacity Electronics Systems for a Compact, Battery-Operated Computerby Elizabeth Brooks, Robert J. Livengood, Rex C. Smith, and Timothy F. Myerspage 12Packaging a Portable Computerby Lee S. Mason and Gary G. Lutneskypage 14Electrostatic Discharge Protection for the HP-75by Gary J. Maypages 15-19Handpulled Magnetic Card, Mass Storage System for a Portable Computerby Kenneth R. Hoecker, James R. Schwartz, Francis A. Young, and Dean R. Johnsonpages 20-23The HP-75 Production Card Recorderby David B. Pattonpages 24-26Integration of the HP-75's Handpulled Card Reader Electronics in CMOSby Thomas J. Arnold and Billy E. Thayer------------------------------------------------------------July 1984 Vol. 35 No. 7-71Bpages 3-10A New Handheld Computer for Technical Professionals- This small computational tool functions both as a  BASIC-programmable computer and as an advanced scientific  calculator.  Equipped with the appropriate modules, it can  control instruments, store and retrieve data and programs,  perform complex number and matrix calculations, or be used  for software development.by Susan L. Wechslerpages 6-7Calculator Mode for a Handheld Computerby Stephen Abellpages 8-9HP-IL Interface Module for the HP-71B Computerby Nathan Zelle and Jackie Huntpages 10-13Soft Configuration Enhances Flexibility of Handheld Computer Memory- This technique allows the CPU to reassign a device's address  space and lets the user dedicate portions of RAM for  independent use.by Nathan Meyerspages 14-17Custom CMOS Architecture for a Handheld Computer- A 4-bit CPU provides a 512K-byte address space and uses a  64-bit internal word size.by James P. Dickiepages 17-21Packaging the HP-71B Handheld Computer- An innovative combination of standard manufacturing  techniques allows a very compact design.by Thomas B. Lindbergpages 22-24Module Adds Curve-Fitting and Optimization Capabilities to the HP-71B- This plug-in ROM can fit data to a variety of built-in  functions or, given a function of up to 20 variables, finds  values of local minima or maxima.by Stanley M. Blascow, Jr. and James A. Donnellypage 23An Optimization Examplepages 25-36ROM Extends Numerical Function Set of Handheld Computer- Full use of complex variables, integration, matrix algebra,  and polynomial root finding are some of the capabilities  provided by this plug-in module.by Laurence W. Grodd and Charles M. Pattonpages 37-40Plug-In Module Adds FORTH Language and Assembler to a HandheldComputer- This ROM adds an alternative programming language and the  ability to define new BASIC keywords or FORTH primitives.by Robert M. Miller------------------------------------------------------------March 1987 Vol. 38 No. 3Calculuspages 38-40Viewpoints - A Viewpoint on Calculus- Presented to the Mathematics Panel of the American Association   for the Advancement of Science on April 5, 1986.  Should the   infinitesimal calculus be taught at all?by Zvonko Fazarinc------------------------------------------------------------June 1987 Vol. 38 No. 6Calculuspages 22-23Reader Forum - responseby Alain Maruari------------------------------------------------------------August 1987 Vol. 38 No. 8-18C-28Cpages 4-10A Handheld Business Consultant- The latest model in HP's line of calculators designed for  business and financial applications features a menu-driven  user interface for selecting any of its many built-in  functions or custom equations entered by the user.by Susan L. Wechslerpage 7Cash Flow Analysis Using the HP-18Cpages 8-9The Equation Solver Menu in the HP-18Cby Paul Swadenerpage 10History and Inspiration of the Solve Interfaceby Chris M. Bunsenpages 11-17An Evolutionary RPN Calculator for Technical Professionals- Symbolic algebraic entry, an indefinite operation stack  size, and a variety of data types are some of the  advancements in HP's latest scientific calculator.by William C. Wickespage 15HP-28C Plottingby Gabe L. Einsteinpages 17-20Mechanical Design of the HP-18C and HP-28C Handheld Calculators- A folding case and two keyboards enhance functionality while  reducing label clutter.by Judith A. Layman and Mark A. Smithpages 21-25Symbolic Computation for Handheld Calculators- A special operating system was developed to allow processing  of a variety of data types from simple numbers to  alphanumeric expressions.by Charles M. Pattonpages 25-30A Multichip Hybrid Printed Circuit Board for Advanced HandheldCalculators- All of the electronics and the display are mounted on a  single 1.5-inch-by-3-inch board.by Bruce R. Hauge, Robert E. Dunlap, Cornelis D. Hoekstra,  Chong Num Kwee, and Paul R. Van Loanpages 30-34An Equation Solver for a Handheld Calculator- A combination of direct and iterative solving algorithms is used.by Paul J. McClellanpages 34-40Electronic Design of An Advanced Technical Handheld Calculator- Custom CPU, ROM, and display driver ICs are key elements.by Prestin D. Brown, Gregory J. May, and Megha Shyam------------------------------------------------------------October 1987 Vol. 38 No. 1082240Apages 16-21An Infrared Link for Low-Cost Calculators and Printers- Since the sender on this unidirectional link gets no  feedback from the receiver, allowances must be made for  worst-case conditions.by Steven L. Harper, Robert S. Worsley, and Bruce A. Stephenspages 21-23A Low-Cost Wireless Portable Printer- Based on a unidirectional infrared transmission path, this  small thermal printer can provide hard copy of HP-18C and  HP-28C calculations.by David L. Smith and Masahiko Muranami pages 24-27Manufacturing State-of-the-Art Handheld Calculators- Robots and special fixturing help keep costs down.by Richard W. Riper------------------------------------------------------------June 1991 Vol. 42 No. 348S/SXpages 6-12The HP 48SX Scientific Expandable Calculator: Innovation andEvolution- Many of the features of this advanced handheld calculator  have evolved from its predecessors, the HP 41C and HP  28S. Others, such as its unit management system, are new.by William C. Wickes and Charles M. Pattonpages 13-21HP 48SX Interfaces and Applications- The HP 48SX scientific expandable calculator provides  support for multiple applications, both bulit-in and  externally developed, with customized user interfaces.  The  Equation-Writer and interactive plotting are two of the  built-in applications.by Ted W. Beers, Diana K. Byrne, Gabe L. Eisenstein,  Robert W. Jones and Patrick J. Megowanpages 22-25HP Solve Equation Library Application Card- The card contains a library of 315 equations, the periodic  table of the elements, a constants library, a multiple  equation solver, a finance application, and engineering  utilities.by Eric L. Vogelpages 25-34Hardware Design of the HP 48SX Scientific Expandable Calculator- Leveraging an earlier design resulted in prototypes with 90%  production tooled parts only nine months after the start of  the project.  The HP 48SX includes an 8-line-by-22-character  super-twist nematic liquid crystal display, two expansion  ports for ROM or battery-backed RAM cards, and two I/O  ports: RS-232 and infrared.by Mark A. Smith, Lester S. Moore, Preston D. Brown,  James P. Dickie, David L. Smith, Thomas B. Lindberg,  and M. Jack Muranamipages 27-28Industrial Design of the HP 48SX Calculatorby Michael Derocherpage 30HP 48SX Custom Integrated Circuitby Preston D. Brownpages 32-33Mechanical Design of the HP 48SX Memory Card and Memory CardConnectorby M. Jack Muranamipages 35-40The HP 48SX Calculator Input/Output System- An RS-232 link allows communications with personal  computers.  An infrared link provides for printing and for  two-way calculator-to-calculator communication.by Steven L. Harper and Robert S. Worsleypages 40-43Manufacturing the HP 48SX Calculator- Sharing manufacturing processes with earlier, simpler  calculators shortened development time and improves  manufacturing efficiency.  The HP 48SX and the simpler  calculators also share the same production line at the same  time - a concept known as coproduction.by Richard W. Riper------------------------------------------------------------August 1994 Vol. 45 No. 448G/GXpages 6-22An Advanced Scientific Graphing Calculator- The HP 48G/GX combines an easy-to-learn graphical user  interface with advanced mathematics and engineering  functionality, expanded memory capability, and seven new  plot types.by Diana K. Byrne, Charles M. Patton, David Arnett,  Ted W. Beers, and Paul J. McClellanpage 20User Versions of Interface Tools------------------------------------------------------------June 1996 Vol. 47 No. 338G100LX*200LX*OmniBook 5000pages 38-44A Full-Featured Pentium PCI-Based Notebook Computer- The HP OmniBook 5000 computer takes advantage of new  technologies such as mobile Pentium, PCI, plug and play,  lithium-ion batteries, and hot docking to give users the  same capabilities as their desktop computersby Timothy F. Myerspage 42Flyback Charger Circuitpages 45-58A Graphing Calculator for Mathematics and Science Classes- The HP38G calculator allows teachers to direct students and  keep them focused while they explore mathematical and  scientific concepts.  It features aplets, which are small  applications that focus on a particular area of the  curriculum and can be easily distributed from the teacher's  calculator to the students'.by Ted W. Beers, Diana K. Byrne, James A. Donnelly, Robert  W. Jones, and Feng Yuan.page 54Distributed Software Teampages 59-63Creating HP 38G Aplets- This article explores a simple aplet and shows how to  construct an aplet called PolySides.by James A. Donnellypages 64-69HP PalmVue: A New Healthcare Information Product- The HP PalmVue system integrates personal computer,  alphanumeric paging, and palmtop computer technology into an  effective solution for delivering timely and high-quality  patient data to mobile physicians.by Edward H. Schmuhl, Allan P. Sherman, and Jon D. Waisnorpage 68Data Through Paging Technology============================================================Hewlett Packard Pocket Calculator Buyer's Guide------------------------------------------------------------October 1975-21A-22A-25A-45A-46A-55A-65A-80A-81ARPN Logic============================================================Hewlett Packard Personal Calculator Digest------------------------------------------------------------Vol 1, 1976-21A-22A-25A-25C-27A-67A-80A-91A-97Apages 4-6Thermal Printing: A New Dimension in Personal Calculatorspages 24-25Service Plus!  A Picture Storypages 26-28CMOS Remembers--A Technological Breakthroughpage 29RPN--The Last Word in Professional Logic System------------------------------------------------------------Vol 2, 1977-21A-22A-25A-25C-27A-67A-80A-91A-97Apages 3, 28The "Smart" Card Reader: An Inside Lookpages 4-6The Pocket Calculator: Its Advent and Impactpages 26-27Homo Programmus: A New Breedpages 28Card Format------------------------------------------------------------Vol 3, 1977-10A-19C-21A-22A-25A-25C-27A-29C-67A-80A-91A-92A-97Apages 3, 27Business Calculators: The New Blue-Chip Investmentpages 4-6Micro-Code: Electronic Building Blocks for Calculatorspage 27The Logical Choice------------------------------------------------------------Vol 4, 1978-10A-19C-29C-31E-32E-33E-37E-38E-67A-92A-97Apages 3-6Programming: The Way to Growpages 30-32Engineering for the Cold, Cruel Worldpage 33The Programming Advantages of RPN------------------------------------------------------------Vol 5, 1979-19C-29C-31E-32E-33E-37E-38E-67A-92A-97Apages 2-3, 28-20"Thank You, Beep"...!by Gordon Dicksonpages 24-27How Programmable Calculators Help Kids Learnby Dr. John J. Wavrik ------------------------------------------------------------Vol 6, 1980-31E-32E-33E-33C-34C-37E-38E-38C-41C-67A-92A-97Apages 3-5, 32Display Fundamentalspages 6-7The Fine Art of Chip Manufacturingpages 30-31The Business of Financial Calculatorspage 33The HP-85: Hewlett-Packard's Personal Computer for Professionals  ------------------------------------------------------------Vol 7, 1980-32E-33C-34C-37E-38C-41C-67A-97A82153Apages 2-5Custom HP-41c's Take Offpages 6-7Birth of a Bodypages 8-9The Father of RPNpages 32-33The HP-85 and Peripherals------------------------------------------------------------Vol 8, 1981-11A-12A-32E-33C-34C-37E-38C-41C-41CV-67A-97Apages 2-3The HP-41C: A Trip to Rememberpages 4-5Quality by Design