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HHC 2024
Return to the Athens of the South

September 21-22, 2024, Nashville, TN
Richard Nelson, Courtyard Nashville Smyrna
0. Richard Nelson, Gene Wright, Bob Prosperi
Introduction
1. Eric Rechlin
One Million HHC Files
2. José González Divassón
HP 15c CE Current and Future Developments
3. Jeff Birt
Forgotten Father of the Computer
4. Jake Schwartz
What's New in the PPC Archive
5. Sylvain Côté
Introducing TULIP4041
6. Gene Wright
Texas Instruments Mid-Range Classic Calculators
7. Geoff Quickfall
Sharp PC-1300 Pocket Computer
8. Sylvain Côté
ZVC Replica
9. Kuba Tatarkiewicz
Testing RNGs or How PPC Changed My Life
10. Geoff Quickfall
HP-65 Restoration Chapter 1 and Trivia
11. Eric Smith
C++ For Fun and Profit (pick one)
12. Felix Gross
Calculator Bibliography Progress Report
13. Bob Prosperi
Update on SwissMicros' Product Line
14. Richard Nelson
History of an Unknown HP Consulting Group
15. Namir Shammas
And Polynomials Begat Polyterms
16. Eric Smith
It Escaped from the Lab - Part I
17. Eric Smith
It Escaped from the Lab - Part II
18. John Doran and Eric Smith
It Escaped from the Lab - Part III
19. Jim Johnson
Woodstock Rechargeable LiPo Battery
20. Gene Wright and Richard Nelson
Contest Prize Winners
HPCC 2023

October 14, 2023, London, England
HPCC, Imperial College
1. Nigel Rumble
HP Emulators
2. Tony Duell
How Calculators Remember
3. Mark Power
HP Prime Environmental Sensing
4. Wlodek Mier-Jedrzejowicz
HP Series 90 TopCat Calculators
5. Mark Power
HHC 2023 Review
HHC 2023
What's Old is New Again

October 7-8, 2023, Orlando, FL
Richard Nelson, Hyatt Place Hotel
0. Richard Nelson, Gene Wright, Bob Prosperi
Introduction
1. Eric Rechlin
What's New in the HHC 2023 USB Drive
2. Mitch Abrams
HP Inc Partner Update
3. David Joachim
Royal Partner Update
4. Klaas Kuperus and Radim Frydrych
Moravia Partner Update
5. Eric Rechlin
Recreating the HP 15c Handbooks
6. Jake Schwartz
25 Years of the PPC Archive
7. Chuck McCord
HP Portable Plus DRam ROM Development Module
8. Gene Wright
Things the HP-41 Designers Got Wrong
9. Craig Bladow
CC41 Decimated
10. Sylvain Côté
82120D Rechargeable Battery Pack for HP-41C
11. Sylvain Côté
HP-41 MAXX Project Update
12. Richard Nelson
50 Years of Documenting HP Calculators
13. Mark Power
HP Prime Environmental Sensing
14. Bob Prosperi
Update on SwissMicros DM32
15. Jeff Birt
Vintage Computer Repair, Physical and Cosmetic Restoration
16. Geoff Quickfall
The Evolution of the Smart Watch, but not THE Smart Watch
17. Richard Nelson
Characterizing CCCs
18. Chuck McCord
HPIB Storage Emulation
19. Joey Shepard
DIY Calculators Update
20. Mark Power
Francis Hookham Collection
21. Eric Rechlin
Using Floppy Disks in 2023
22. Jim Donnelly
A Brief History of Portable Time/Date Functions
23. David Hayden
Optimizing the Mandelbrot Set on HP Prime
24. Jim Johnson
HP-91 & 92 Desktop Calculators
25. John Doran and Eric Smith
Building a Nixie Tube RPN Calculator
26. Gene Wright
In Praise of the Original TI-30
27. Günter Schink
Python on Prime: A Personal Experience
28. Namir Shammas
HP-15C Timing Tests
29. Brian Walsh
Plasma Loudspeakers
30. Eric Smith
More Voyager Enhancements
31. Richard Nelson and Gene Wright
Contest Prize Winners
Allschwil 2022

October 28-29, 2022, Basel, Switzerland
Matthias Wehrli and Hans-Peter Wiederkehr, Pfarreiheim Oberwil
1. Chuck McCord
HP-92 Bobcat Prototype
2. Chuck McCord
HP-75 Software Development System Prototype
3. Chuck McCord
Inside HP's Pioneer Calculators: The Sacajawea IC
4. Bernhard Emese
Inside the HP-19C
5. Sylvain Côté
Advanced HP-IL Communication
6. Christoph Giesselink
V41 The Windows HP-41 Emulator, Part 2: A Dream Became Truth
7. Pascal Dagornet
PIL Storage Drive
8. Angel Martin
Towards HP-41 Visual FOCAL++
9. Meindert Kuipers
YPRT: Developing / patching the Printer ROM
10. Chuck McCord
Voyager Single Chip Series 10 (SST)
11. Chuck McCord
What if? We could have another model in the Voyager Series
12. Sylvain Côté
HP-41 MAXX Module
13. Walter Bonin
Vapourware Condensed [WP43 Update]
14. Jaco Mostert
C43: The Classic 43 [WP43 Variant]
15. Jef Ongena
Repair of a 1971 Japanese Calculator
HPCC 2022

October 22-23, 2022, London, England
HPCC, POSK
1. Chuck McCord
Voyager Single Chip Series 10 (SST)
2. Jake Schwartz
Archiving the HP Handhelds User Groups
3. Klaas Kuperus
HP Calculators Distribution
4. Mark Power
HP Prime Wireless Classroom Kit
5. Chuck McCord
What if? We could have another model in the Voyager Series
6. Wlodek Mier-Jedrzejowicz and Michael Steinmann
HP-32S, HP 32SII and DM32
7. Mark Power, Bruce Horrocks, Wlodek Mier-Jedrzejowicz
RCL 40 Launch
8. Cyrille de Brebisson
Recollections
9. Chuck McCord
HP-75 Software Development System Prototype
10. Robert Efroymson
Beyond the Beep
11. Steen Petersen
The Story of the HEPAX Module
12. Chuck McCord
HP-92 Bobcat Prototype
13. Eric Rechlin
Archiving Projects
14. Wlodek Mier-Jedrzejowicz
Closing Remarks and Special Presentation
HHC 2022
We're Not Dead Yet

September 10-11, 2022, Nashville, TN
Richard Nelson, Hilton Garden Inn
1. Felix Gross
Calculator Patents and How to Find Them
2. Gene Wright
TI-88 Part 1: History and Go / No Go Decision
3. Richard Nelson
TI-88 Hardware Tour
4. David Ramsey
Autonomous Vehicle Status - Tesla's Full Self Driving in 2022
5. Eric Rechlin
What's New on the HHC 2022 USB Drive
6. Jake Schwartz
What's New in the PPC Archive
7. Bob Prosperi
When Odran Is New Again
8. Gene Wright
TI-88 Part 2: Features, Comparisons, and Verdict
9. Chuck McCord
HP-75 Software Development System Prototype
10. David Ramsey
Everything But The Kitchen Sink
11. Chuck McCord
Voyager Single Chip Series 10 (SST)
12. Sylvain Côté
Advanced HP-IL Communication
13. Jim Johnson
HP-10 Calculator with Focus on the HP-10 Printer
14. Chuck McCord
Bobcat Prototype
15. Gene Wright
Calculator Humor
16. Gene Wright
APF Calculators
17. Klass Kupereus
HP Calculators Distribution
18. Eric Rechlin
Literature Archive Update
19. Namir Shammas)
Project 997: New Simple PRNGs For Calculators
20. Edward Shore
Plus42: Advanced Equation Editor Functions
21. Gene Wright
Actuarial Math - Adding mortality to the time value of money
22. David Ramsey
Texas Instruments SR-60A Programmable Calculator
23. Namir Shammas
The Best Empirical Multiple Regression Model
24. Sylvain Côté
HP-41 MAXX Module
25. Gene Wright and Richard Nelson
Contest Winners
HPCC 2021/Oct

October 23, 2021, Virtual
HPCC, Webex
1. Chuck McCord
The HP 9808A/B Unicorn - The Product that Almost Was
2. Sylvain Cote
FRAM71 and FRAM71B Configurator Spreadsheet
3. Chuck McCord
What if? We could have another model in the Voyager Series
HHC 2021
In Search of a Slogan

October 2-3, 2021, Nashville, TN
Richard Nelson, Hilton Garden Inn
1. Felix Gross
Calculator Bibliography Update
2. Bob Prosperi
Calculator Challenge
3. Eric Rechlin
What's on the HHC 2021 USB Drive
4. Richard Schwartz
Computing Logarithms by Integration
5. Chuck McCord
The HP 9808A/B Unicorn - The Product that Almost Was
6. Richard Schwartz
Starting a Fire
7. Jake Schwartz
What's New in the PPC Archive Version 2.39
8. Eric Rechlin
Techniques for Digitally Preserving Technical Manuals and Other Books
9. Gene Wright
Calculator Ad Price Analysis
10. Gene Wright
Lines and Graphs
11. Jim Johnson
Diagnosing Problems with the HP-19C With Focus on the Printer
12. Jim Johnson
Remembering Thomas M. Whitney
13. Craig Bladow
CC41 A Touch Typist's Calculator
14. David Ramsey
Something About Keyboards
15. Gene Wright
Rockwell Calculators
16. Richard Schwartz
Make Your Own Slide Rule
17. Richard Nelson
What We Started
18. Joey Shepard
6502 Calculator Projects
19. Eric Smith
History of Floating Point Processors
20. Richard Nelson
Accuracy Comparisons, 7 Methods & 30 Programs
21. Bob Prosperi
Another Perspective of the Scanning Projects - Content
22. Gene Wright and Richard Nelson
Award Winners
HPCC 2021/Jan

January 9, 2021, Virtual
HPCC, Webex
1. Cyrille de Brebisson
Update on HP Calculators
2. Eric Smith
Math Coprocessors Before the x86
HPCC 2020

October 10, 2020, Virtual
HPCC, Webex
2. Eric Rechlin
What's on the HHC/HPCC 2020 USB Drive
3. Jake Schwartz
What's New in the PPC Archive
4. Bob Prosperi
SwissMicros DM41X - A little late, a lot better
5. Eric Hazen
The Retro-25 DIY Calculators
6. Michael Park
MP-29 Tactile Touchscreen Calculator
7. Mark Power
What's New in G2
8. Sylvain Cote
Diego's HP-41 Modules (Clonix and NoV)
9. Eddie Shore
Computer Algebra Systems (CAS) and Calculators
10. Gene Wright and Wlodek Mier-Jedrzejowicz
HP's Worst Calculators
11. Godwin Stewart
DMConnect
12. Will Marchant
DM16 in a Satellite Launch Campaign
HHC 2019
In Search of Excellence

September 21-22, 2019, Reno, NV
Richard Nelson, Hyatt Place Hotel
1. Jeremy Smith
Cubic Chess
2. Jim Donnelly
Shop Projects Update
3. Bob Prosperi
SwissMicros DM41X Announcement
4. Namir Shammas
Newton Method Interpolations
5. Gunter Schink
Overview of the WP 43C
6. Eric Rechlin
My Role as an Archivist; or, What's on the HHC USB Drives?
7. Jake Schwartz
What's New in the PPC Archive DVD
8. Richard Schwartz
Percent Change, Logarithms, and their interpolation
9. Bruce Horrocks
Impromptu Report from Across the Pond
10. Namir Shammas
Multi-Variable Solver
11. David Ramsey
The Nature of Time
12. Jim Johnson
Graphics on the DM42
13. Richard Nelson
Percentages on the 48
14. Richard Nelson
RIP HP Calcs
15. Richard Nelson
USB Power
16. Bob Prosperi
Woodstock Low Power and ConnKit
17. Gene Wright
The Financial Calculators (via Skype)
18. Namir Shammas
Scout Evolutionary Optimization Method
19. Joey Shepard
DIY Calculators
20. Tom Chrapkiewicz
Aural Clocks and Big Ben on the 48
21. Bruce Horrocks
The HP 39G/49G Overhead Projector
22. David Ramsey
Programming Contest Winners
HHC 2018
Celebrating 50 Years of HP Programmables

September 29-30, 2018, San Jose, CA
Richard Nelson, SpringHill Suites
3. Thomas Chrapkiewicz
History and Pictorial Presentation of Silicon Valley
6. Namir Shammas
Polynomial Roots by Optimization
7. Sylvain Cote
Presenting the HP-IL Compendium
8. Monte Dalrymple
41C Flexible Hardware Module
9. Gene Wright
Old Calculator Ads (via Skype)
10. Gene Wright
Unisonic Calculators (via Skype)
11. Dave Cochran
HP Calculations from Desktop to Pocket
12. Felix Gross and David Hayden
Recreating the 15C Advanced Functions Handbook
13. Thomas Chrapkiewicz
Plotter [RS-232/HP-GL] control with HP 48 Series with Applications
14. Jim Johnson
What Was the First Personal Computer? (Careful, trick question)
15. Richard Nelson
Add SIG to FIX, SCI, & ENG?
16. Richard Schwartz
Naive Testing of the 997X Random Number Generator
17. Thomas Chrapkiewicz
Audio & Acoustic Performance of HP 48 Series with Applications
18. Namir Shammas
New Algorithm for Numerical Integration
19. Benoit Maag
Repurposing Old TI Calculators
HHC 2017
The Prime Factor

September 16-17, 2017, Nashville, TN
Richard Nelson, Holiday Inn
3. Jim Johnson
HP-25 LP: Panamatik's New Woodstock Low-Power Upgrade Kit
6. Gene Wright
Non-HP Desktop Scientific Calculators
8. Gene Wright
New ROMs for the HP-41CL
9. Sylvain Cote
41CL Self-Update
10. Daniel McDonald
"The End is Near" (or, "I love Pessimism")
11. Bob Prosperi
Searching... for calculators
12. Namir Shammas
PRNGs For Calculators
13. Eric Rechlin
HP Calculator Archive Twentieth Anniversary
15. Gene Wright
Don't Make Me Wait
16. Gene Wright
Commodore Scientific Calculators
17. Richard Nelson
Not So Simple Power Calculations
18. Richard Schwartz
Log Tables
19. Bob Prosperi
HP-75 Update
21. Namir Shammas
Halley-Ostrowski Root-Seeking Method
23. Jake Schwartz
EduCALC: A Look Back
24. Eddie Shore
Extending the HP-12C: Programming for Scientific applications
25. Don Shepherd
Do Not Fold, Spindle, or Mutilate
HHC 2016
The HP Prime: A Moving Target

September 17-18, 2016, Fort Collins, CO
Richard Nelson, HP Fort Collins
3. Jim Johnson
HP Calculator Power Supplies from HP-35 to Prime
7. Don E. Morris
From the HP-35 to the HP-9825
8. Felix Gross
Calculator Bibliography Update
9. Namir Shammas
A Fistful of Tips and Tricks
10. Jackie Woldering
Raspberry Pi Update
11. Richard Nelson
Next Generation Calculator Measurements
12. Gene Wright
Update on the HP-41CL
13. Sylvain Cote
HP-41CL ROM Update
14. Jim Donnelly
3D Printing and Machining With The HP Prime
15. Gunter Schink
NewRPL - A New Twist on RPL
16. Gunter Schink
New Kid On The Block (SwissMicros DM-42)
17. Geoff Quickfall
The HP-01 "Cricket": The Past, Present and Future
18. Bob Prosperi
FRAM 71B
19. Sylvain Cote
HP-71B Compendium
20. Namir Shammas
Machine Learning for Best Linearized Regression Model Using the HP Prime
21. Gene Wright
In Praise of the SR-56 Calculator
HHC 2015
EYAWTKATCUCPBWATA!

September 26-27, 2015, Nashville, TN
Richard Nelson, Holiday Inn
4. Namir Shammas
Genetic Algorithm Optimization using the HP Prime
5. Gunter Schink
HP 50g System Flash Upgrade
7. Gene Wright
HP-41CL Update
9. Mary Woldering
"Children of Stone" = A Self-Publishing Saga
10. Geoff Quickfall
Woodstocks in the Twenty First Century
11. Jake Schwartz
The WP-43S: A Specification In Search of a Platform
12. Felix Gross
Update on 342-page Calculator References List Project
13. Eric Smith
The Glacial Pace of Scaled Reptiles
14. Namir Shammas
Particle Swarm Optimization using the HP Prime
15. Jackie Woldering
A Numeric Compression Algorithm for the HP Prime
16. Bob Prosperi
Virtual HP-IL (and related topics) Update
17. Geoff Quickfall
Informal Demos
18. Richard Nelson
Review of Swiss Micros' DM-41 and the Brand New DM-15L
19. Jim Johnson
Fritzing, China and the NP-25
20. Bob Prosperi
FRAM71 Introduction
22. Namir Shammas
Random Number Generators using Integer Array Shuffling with the HP Prime
23. Namir Shammas
HP-65 Pro emulator for the Apple iPad
24. Wlodek Mier-Jedrzejowicz
Prime Savage (speed/accuracy comparisons)
25. Gene Wright
TI vs. HP and Fast Mode
HHC 2014
Ready for Prime Time?

September 20-21, 2014, Reno, NV
Richard Nelson, Hyatt Place Hotel
3. Namir Shammas
Bisection Plus Algorithms, Remembering Jack Stout
5. Bob Prosperi
Virtual Loops, PIL Box, LIF, An Update on HP-IL
7. Richard Nelson
Solving Sans Computer, Calculator or Slide Rule
8. Geoff Quickfall
Cloud Fed: Sprinkle and Strew
9. Jake Schwartz
Calculator Odds and Ends (Updated PPC Archive DVD plus WP 34S & 31S printed manuals)
10. David Ramsey
Something Something Something Dark Side (HP 9810 & 9820 desktop calculators)
11. Namir Shammas
Trisection Algorithms
12. Eric Smith
Scaled Reptiles from (Silicon) Laboratories (market research on the DIY Calc - "XC-42")
13. Joseph Horn
Hailstone Numbers: A Pattern Has Been Found
14. Joseph Horn
The LIF Disk Web Archive Project
15. Geoff Quickfall
HP-41 Card Reader Drive-Wheel Replacement Demonstration
17. Namir Shammas
HP-41 Regression Program Generator
19. Richard Schwartz
Book Binding 2.0 plus Other Calculator Remarks
20. Joe Horn
Programming the same task on an HP-41, HP-71B, HP 50g, and HP Prime
21. Bob Prosperi
HHC eBay Topics
22. Benoit Maag
The RPN-1200 Project
HHC 2013
The Future Realized: Gen5 Arrives!

September 21-22, 2013, Fort Collins, CO
Richard Nelson, HP Fort Collins
3. Richard Nelson
Peeking at Prime
4. Tim Wessman (HP)
HP Prime Wireless Polls, Quizzes and More
5. Cyrille de Brébisson (HP)
HP Prime Architecture
7. Cyrille & Tim
HP Prime Q & A
8. Jim Donnelly
Visualizing Data: A Journey From Calculator Development to the Machine Shop
9. Felix Gross
Update: Where Can You Find Calculator Applications?
10. Jim Johnson
HP-29C Calculator Diagnosis and Restoration
11. Namir Shammas
My Favorite HP Prime Functions
12. Eric Smith
Still Larger Scaled Reptiles of the Nordic Countries (DIY Calculator Update)
13. Jeremy Smith
Platonic Road Dots
16. Gene Wright
The Early HP Omnibook Laptops / Show and Tell
17. Geoff Quickfall
HPs at Work in Aviation
18. Wlodek Mier-Jedrzejowicz
A Guide to HP Handheld Calculators and Computers
21. David Ramsey
The HP-85 Family
22. Jake Schwartz and Jackie Woldering
Incorporating Readable HP-41 PPC Journal Programs and Barcodes into the PPC DVD
23. Chuck McCord
Tales from HP Corvallis
24. Book Authors' Panel
Q & A for Aspiring Authors
HHC 2012
Convergence

September 22-23, 2012, Nashville, TN
Gene Wright, Holiday Inn
2. Jake Schwartz
WP-34S and the HP Calculator Way
3. Gene Wright
Tablets vs. HP Calculators
4. Namir Shammas
Calculator Root Finding: Scan Range Method
5. Roger Hill
The Wrongulator
6. Richard Nelson
Measuring HP Calculator Current
7. Palmer Hanson
Calculating Before Calculators
8. Warren Furlow
The HP-41 is Alive and Well
9. Felix Gross
Where Can you Find the History of Calculator Applications?
10. Pavneet Arora
Re-tooling the Calculating Tool (or "Anti-Convergence")
12. Katie Wessman
Show and Tell
13. Gene Wright
These are a Few of My Favorite Things
14. Jackie Woldering
Converting HP-41C Programs to PDF - PPC barcode lives on
15. Eric Smith
Even Larger Scaled Reptiles of the Nordic Countries
16. Namir Shammas
Curve Fitting with Least Squares Relative Errors
17. Wlodek Mier-Jedrzejowicz
Is it Really a Pathetic Name?
18. Namir Shammas
Variable Sampling Integration
19. Rick Furr
The Making of The HPv2 Poster
20. Jackie Woldering
Raspberry Pi
HHC 2011
Back to the Future

September 24-25, 2011, San Diego, CA
Richard Nelson, HP San Diego
5. Dennis Harms
HP 12C - Why has it lasted 30 years?
6. Marcus von Cube
How WP 34S came into existence
7. Neil Hamilton
WP 34S Assembler
8. Martin Cohen
RPN on Android Phones
9. Joseph Horn
The 4 meanings of "Accurate to 3 Places"
10. Wlodek Mier-Jedrzejowicz
HP-12Cs Through the Ages
12. David Ramsey
The SR-60
13. Namir Shammas
HP 15c Execution Times
14. Richard Nelson
The PPC ROM
15. Eric Smith
Scaled Reptiles of the Nordic Countries
16. Patrice Torchet
HP-15C Benchmark: The Devil is in the Details
17. Andreas Möller
HP 49g+ / 50g O.S. Extension Pack
18. Geoff Quickfall and Gene Wright
41CL Beta Test Results and Q&A Comments on using the 41CL
19. Richard Schwartz
Generating Normal Deviates (HP 35s)
20. Gene Wright
Using 41CL/PPC ROM -> 34S Matrix program
21. Eric Rechlin
Making HP Calculator Overlays
22. Jake Schwartz
An HP-16C/WP 34S Dictionary
23. Gene, Jake, Marcus, Neil
WP 34S Q&A Panel
HHC 2010
Getting Back to Basics

September 25-26, 2010, Fort Collins, CO
Richard Nelson, HP Fort Collins
3. Richard Nelson
The Legacy Machine Question
4. Charles Schilling
Tales from HP Corvallis
5. HHC Committee
The Legacy Machine Question, Continued
6. Tim Wessman (HP)
Random Musings on Nothing of Interest
7. Gene Wright
HP 15c+ Speed Comparison
9. Tim Wessman (HP)
Open discussion about RPN
10. Tim Wessman (HP)
Examining a New Product's Development
11. Gene Wright
HP 10bII+ Demonstration
12. Jake Schwartz
Might A Tablet Be the Ideal Platform/UI for a Highly Complex Calculator?
13. David Hayden
HPObjects: A Comprehensive Library for Accessing Calculator Objects in C code with HPGCC
14. Tim Wessman (HP)
More Random Musings on Nothing of Interest
15. Pavneet Arora
Defining Markets for Calculators
16. Jake Schwartz
HP 30b repurpose 34S project update for Paul Dale and Walter Bonin
17. Gene Wright
NEWT Update for Monte J. Dalrymple
18. T. Jason Smith (HP)
Professional Exam Testing Calculator Requirements
19. Eric Smith
New Classics, Part n+1
20. Jeremy Smith
Polyhedra
21. Patrice Torchet
Rethinking the Classical Factorization Algorithm
22. Tim, Jason, Laura, Scott Nedringhaus (all HP)
HP Q & A
HHC 2009
30th Anniversary of the HP-41 System

October 3-4, 2009, Fort Collins, CO
Richard Nelson, HP Fort Collins
3. Tim Wessman (HP)
HP Calculators Inside to Outside
4. Ted Kerber
Simplifying Communication - HP 50g to Surveying Instruments
5. Namir Shammas
RPN2
6. Tim Wessman (HP)
How HP Builds Calculators
7. Richard Nelson
Remembering the HP-41 / HP-IL System - the Untold Story
8. Tim, Cyrille and Dirk Dykson (all HP)
HP Q & A
10. Hugh Steers
Calculators on Calculators
11. Richard Schwartz
On Annealing
12. Cyrille and Tim
Introducing the HP 30b
13. Joseph K. Horn
x<>y and Harley/Coke/Mustang Calculators + HP Calculator Bug Hunting
14. Richard Ottosen
"DIY RPN" Calculator Hardware
15. Wlodek Mier-Jedrzejowicz
Should Einstein Have Used One?
16. Geoff Quickfall
HP-41C Calculator and Card Reader Restoration
17. Cyrille de Brébisson (HP)
"142164808C" - HP 50g System RPL Development
18. Gene Wright
Programming on the HP 30b
19. Gene and Cyrille
30b Programming Q & A
20. Gene Wright
The New Product Generation Process (Griffin Technology - iPhone/iPod products)
21. Brian Maguire
Fundamentals of a Computer Algebra System (CAS)
22. Andreas Möller
An Improved HP 50g Stopwatch Application and An Enhanced Solver Application
23. Egan Ford
HP-IL 2009
24. Jake Schwartz
E-Ink, Haptic Touch and MEMS
25. Richard Schwartz
The KY-0 Starbucks Crypto System
HHC 2008
HP 20b Business Calculator & ARM7 Development System

September 27-28, 2008, Corvallis, OR
Richard Nelson, HP Corvallis
4. Brian Maguire
Evolution of Dynamic Geometry Software
5. Sharon Butterfield (ex HP)
Memories From the HP-35 Development Years
7. Sam Kim (HP)
HP Calculators Up To Date
8. Jake Schwartz
Improving Keystroke Efficiency in HP's Recent Business Calculators
9. Richard Nelson
Fourier StreamSmart 400 Probes
10. G.T. Springer (HP)
HP MCL and Data Streaming
11. Charlie Patton (ex HP)
Cognitive Science and Calculator Design
12. Eric Smith
Calculator Simulations
13. Felix Gross
Patent Documents: Looking for the History and Future of Calculators
14. Richard Nelson
If I Were Wing King
15. HP Panel Q & A
Sam Kim, G.T. Springer and Cyrille de Brébisson
16. Andreas Möller
An HP 50g Multilingual Pack
17. Joseph Horn
Reverse Polarized Denotation: Polarization in HP Calculator LCDs
18. Jim Donnelly and Megha Shyam (ex HP)
HP Ex-Corvallis Folks Sharing a Bit of History
19. Megha Shyam (ex HP)
The Future of Calculators
20. Wlodek Mier-Jedrzejowicz
Could Einstein Have Used One? Part II
21. Cyrille de Brébisson (HP)
HP 20b as a Product Development Platform
22. Gene Wright
HP 20b Flash Programming Demonstration
23. Felix Gross
Calculator Literature - 725 Documents
24. Namir Shammas
New Root-Seeking Algorithms
25. Karl Schneider
Suggested Functionality for Successor or Update to the HP 35s
26. Pavneet Arora
HP 50g Construction Application
27. Gene Wright
Walter's Calculator Suggestions (presented for Walter Bonin)
28. Michael O'Shea
HP 97 and HP 67 Emulator Demo
29. Namir Shammas
Shammas Polynomials
HPCC 2007

October 13-14, 2007, London, England #6
HPCC, Imperial College
3. Jake Schwartz
The "Twenty-four Years of Datafile" CD
4. Hugh Steers
"Formlua": A New Programming Environment for HP Calculators
5. Tony Duell
Restoring an HP-9820 Desktop Calculator
6. Wlodek Mier-Jedrzejowicz
HP Calculator and Club History
7. Meindert Kuipers
The MLDL2000
8. Andreas Möller
The TreeBrowser: Another Approach To Your Equation Library
9. Wlodek Mier-Jedrzejowicz
Summarizes Eric Smith's Work on "DIY" RPN Calculators
10. Tony Duell
Disassembles the HP-9816 Desktop Calculator
11. Hugh Steers
Demonstrates HP 50g "Formlua" 1.01 Beta
12. Hugh Steers
Programming on Early Casio Programmable Calculators
13. Bruce Horrocks
A Proposed New "Voyager"-Class Scientific Calculator
HHC 2007
35th Anniversary of the HP-35

September 29-30, 2007, San Diego, CA
Richard Nelson, HP San Diego
5. Wlodek Mier-Jedrzejowicz
Would Einstein Have Used One?
6. Sam Kim of HP
HP calculator update
8. Richard Nelson
HP Halo Project
9. Jake Schwartz
Cupertino to Corvallis to Singapore to Melbourne to San Diego: Are we there yet?
10. Hugh Steers
Real 21st Century Calculation
11. Tim Wessman
Square Peg -> Round Hole: Challenges of Modeling the round Earth on a flat Plane
12. Namir Shammas
Extended Best Linearized Regression
13. Jean-Yves Avenard
EDGE: EmbeDded Graphic Engine from Hydrix
14. Jeff Bronfield
Update on Electrical Power Engineering Calculator Applications
15. Gary Tenzer and Group
If I Were HP-King-For-A-Day Forum
16. Martin Cohen
What I would Change In The HP 35s
17. Howard Owen
MLDL2000 and HEPAX How-To
18. Andreas Möller
TreeBrowser - Another Equation Library Approach
19. Bruce Horrocks
A Proposal for a Simple Scientific Calculator
21. Eric Rechlin
A new HP 50g Serial Cable
23. Cyrille de Brébisson
Calculator Technology
24. Eric Smith
How To Make A Small Fortune Engineering New Calculators
25. Don Shepherd
TI-nSpire Calculator Demonstration
26. Gene Wright
New Machine Ideas
27. Ted Kerber
The 35s and Its Expandable power
28. Sam Kim and Cyrille de Brébisson
HP Panel - General Q & A
29. Richard Nelson
How many Keys Should a Personal Calculator Have?
30. Richard Nelson and Jake Schwartz
Time line of HHC 2007 & 2008 Calendar of HP Personal Calculators
HHC 2006
The Year of the HP-12C

September 16-17, 2006, San Jose, CA
Ted Kerber, Radisson Hotel
5. Cyrille de Brébisson
Future Calculator Technology
6. Sam Kim
The Future of HP Calculators
7. Gene Wright
HP 12C Basics
8. Brian Maguire
Data Streamers, the next generation
9. Ted Kerber
Surveying with the HP 49/50g Calculator
10. Sam Kim and Cyrille de Brébisson
HP Forum Q&A
11. Richard Nelson
Keeping HP Calculators distinguishable
12. Eric Smith
Simulations of HP-21, 22, 25, 25C, 27, & 29C. The 30 series and the HP-41 are yet to come.
13. Wlodek Mier-Jedrzejowicz
The Ideal HP 33s - The eye problem and more
14. Gene Wright
Conference DVD contents (Part 1)
15. Gene Wright
Interesting programs for the HP-12C
16. Gene Wright
Conference DVD contents (Part 2)
17. Jake Schwartz
Conference DVD contents (Part 3)
18. Richard Nelson
Calculator Keyboard Comparison
19. Jean-Yves Avenard
Hydrix Handheld-Related Projects
20. Gene Wright
The HP-41C Lives!
21. Tim Wessman
Getting Started with HPGCC and the DC-49
22. Jeff Bronfield
The method of Symmetrical Components
23. Wlodek Mier-Jedrzejowicz
The latest HP Calculator Books
24. John Cadick
The Per Unit System
25. Jake Schwartz
Twenty Years of HP Videos 1986-2005
26. Gene Wright
CAS features of the HP40g
HHC 2005
Nostalgia and the Cutting Edge!

September 17-18, 2005, Franklin Park, IL
CHIP Group, ACE Metal Crafts
4. Gene Wright
The HP 49g+ Advanced Users Reference Manual
5. Tim Wessman
The Create-A-Calculator Contest Winning Design
6. Eric Smith
The Nonpareil Classic HP Calc Simulator Update
7. Namir Shammas
Root Solving Methods
8. Cyrille de Brébisson
Digging Past the Core of the "Apples"
9. Paul Hubbert
Electronics Goodies Update
10. Rick Furr
Collecting HP Calcs and Creating an HP Calculator Poster
11. Brian Walsh
Enhancing the HP Calc Program User Interface
12. Frank Travis
Bring Back The Older HP Calcs
13. Richard Nelson
Fun With Magnets
14. Eric Rechlin
An hpcalc.org Update
15. Richard Nelson
Experimenting With Magnets
16. Tim Wessman
HP 49g+ Surveying Software Update
17. Gene Wright
Developing the HP 12c Platinum Users Guide
18. Richard Nelson
More Experimenting With Magnets
19. Ron Johnson
HP Lightscribe CD Technology
20. Namir Shammas
SOLVE in HP Calculators
21. Wlodek Mier-Jedrzejowicz
Delayed Evaluation in Calculator Entry Logic
22. Eric Smith
New "Classics"
23. Tim Wessman and John Evers
Surveying Software/Hardware Demo
24. Gene Wright and Wlodek Mier-Jedrzejowicz
HP at 2005 Educational Math Conferences
25. Jake Schwartz
An Update to PPC CD #3: Twenty-Two Years of HPCC Datafile
26. Richard Schwartz
Solving A Polynomial of Interest on the HP 30s
HHC 2004
The Future Beheld!

September 25-26, 2004, San Jose, CA
Ted Kerber, Radisson Hotel
3. Gene Wright
Contents of Conference CD
4. Jake Schwartz
Proper Calculator Keyboards and Attachable Keyboard Overlays
5. Bill Butler
How I Use My "HP-XX"
6. Ted Kerber
Third Party Applications for the HP 49g+
7. Gene Wright
Calculating Contrast
8. Roke Ghodsi, Cyrille de Brébisson, Art Garcia
Current Status of the HP Calc Business with Q & A
9. Richard Nelson
Superman Looks at the HP 17bII+
10. Martin Cohen
Programming the HP 33s
11. Dave Hicks
Hitchhikers' Guide to the HP Museum
12. Paul Hubbert
Battery Charging & Internet Bargains
13. Richard Nelson
Book Binding
14. Monte Dalrymple
The NEWT (Nut, Extended, With Turbo) Microprocessor and the 41CL Calculator
15. David Shier
A Look at HP iPAQ Handhelds, and Inviting James Bond Into Your Office
16. Wlodek Mier-Jedrzejowicz
Ten Things A Calculator Will Never Do
17. Eric Rechlin
The History and Operation of hpcalc.org
18. Tim Wessman
DC-49 Surveying Data Collector
19. Eric Smith
Update on Microcode Simulation of Early HP Calculators
20. Joseph K. Horn
PDQ Unbound: No More Limitations
21. Wlodek Mier-Jedrzejowicz
Calculators at Education Conferences
HHC 2003
A New Hope

September 20-21, 2003, Newport Beach, CA
Richard Nelson, Radisson Hotel
3. Jake Schwartz
PPC CD #4: Australian Newsletters & Conference Proceedings 1979-99
4. John Cadick & Jeff Bronfeld
Useful 48 Utilities for Power Systems Engineers
5. Marc Staps
Power48 on A Palm Tungsten - A Year Later
6. Lee-Khuan Goh
HP Calculator Strategy and Create-a-Calculator Contest
7. Tony Jones & Cyrille de Brébisson
HP Calculator Roadmap
8. David Shier
Wireless Data Comes of Age - finally!
9. Fred Valdez
Dinner Speech
10. Louis Skelton
Collecting HP Calculators
11. Tony Jones, Cyrille de Brébisson, Fred Valdez, Lee-Khuan Goh
HP Calculators Q&A
12. Joseph K. Horn
The PDQ Algorithm: Rational Approximation of Irrational Numbers / Beyond Continued Fractions
13. Ted Kerber
Professional HP 49 Survey Applications Issues
14. Brian Maguire
Learning Tool Software Development
15. Peter Boniface
The HP 48 In Academia
16. Paul Hubbert
Battery Charging & Internet Bargains
17. William Graves
The New HP 48/49 Connectivity Kit & DEBUG4X
18. Wlodek Mier-Jedrzejowicz
Vital Functions Not on Today's Machines
HHC 2002

September 21-22, 2002, London, England #5
HPCC, Imperial College
2. Frank Wales
Twenty Years of HPCC
3. Jake Schwartz
Sources of HP Handheld Information
4. Jean-Yves Avenard
Comments on the HP 49
5. Tony Duell
Inside the HP-9100B
6. Jo Vandale
The Big HP 33E
7. Fred Valdez, Tony Jones
HP Presentation
8. Bruce Horrocks
Interacting With HP
9. J. Manrique Lopez de la Fuente
XCAS and the SDA Project
10. Philippe Roussel
Using the HP 48 Solver & Long Float Library
11. Richard Nelson
Excellence in HP Financial Calculators
12. Marc Staps
Keeping the HP Enthusiasm Alive
13. Wlodek Mier-Jedrzejowicz
What Happened to ACO?
15. Jean-Yves Avenard
The New HP 49 SDK
16. Paul Hubbert
Discount Electronics on the Internet
HHC 2001
2001: A Handheld Odyssey

September 15-16, 2001, Chicago, IL
CHIP Group, Four Points Sheraton Hotel
2. Paul Hubbert
The "Robot" Calculator
3. Ron Johnson
Tools
4. Richard Nelson
The HP Xpander
5. Richard Schwartz
Big Lies We Are Taught In School
6. Brian Walsh
Fluid Flow Solutions
7. Paul Hubbert
Opinions on Palm-type PDAs
8. Richard Nelson
PPC/CHHU/HP Relations
9. Paul Kettler
The Solver
10. Ron Johnson
Structural Engineering and the WTC Collapse
11. Jake Schwartz
Running HP 48/49 Emulator on HP Jornada
12. Roger Hill
Making the HP-41 Talk
HHC 2000

September 9-10, 2000, Los Angeles, CA
Richard Nelson, Ramada Plaza Hotel
4. Dennis York
Something Very New. The Ranger - A New Handheld, The Inside Story
5. Brian Walsh
Calculator Alternatives
6. Marc Staps
Calculators, Clubs, & Conferences
7. Paul Hubbert
Small Electronics Rechargable Battery Update, CHEAP MP3
8. David Shier
Wireless medical database application
9. Ted Kerber
The Rise and Fall of the HP Third-Party Experiment
12. Richard Nelson
Synergism, Books, and More
13. Richard Nelson
Classic Electronics Problems - The AWG Table
14. David Shier
The Curta Calculator
15. Jake Schwartz
A Survey Of HP Calculator Numeric Keypads
HHC 1999

August 21-22, 1999, Vancouver, WA
HP ACO, Phoenix Inn Hotel
3. Jean-Yves Avenard
Presenting the HP 49G
4. Jean-Yves Avenard
HP 49G architecture versus HP 48 series
5. Jim Donnelly
Building HP 48/49 Libraries
6. Richard Nelson and Wlodek Mier-Jedrzejowicz
One-Minute Marvels: HP 48/49 Tips & Routines
7. Dan MacDonald
LIF File transfer between PCs and HP-IL devices
8. Brian Walsh
Memory Management and Synchronization
9. Jake Schwartz
The PPC CD-ROM Set: An Update
10. Richard Nelson and Jean-Yves Avenard
Looking Inside the 49G (and Prototypes)
11. Ted Kerber
HP 49 Fonts for Printing on the PC
12. Dennis York
A Ruggedized Windows CE Handheld for Surveyors
13. Megha Shyam
Quality Assurance in Software / Desires in Hardware for High-End Graphing Calculators
14. Vern Lindsay
The Firmware Systems' Portable Datalab data acquisition device for HP 38/48/49
15. Jeremy Smith
A "stream-of-consciousness" discussion on the development of handheld electronic devices
17. HP Panel
Discussion with ACO
19. Cyrille de Brébisson
HP Developer Training: The HP 49 Software Development Kit
HHC 1998

August 29-31, 1998, Vancouver, WA
HP ACO, HP Vancouver
3. Megha Shyam
Software Development
4. Ted Kerber
The Making of the Font
5. Vern Lindsay
New PLDL2000
6. Wlodek Mier-Jedrzejowicz
Year 2000 Bugs - Need We Worry?
7. Jake Schwartz
PPC CD-ROM Set: A Work In Progress
8. Raan Young
When Whim and Reality Collide
11. Megha Shyam
Derive on a Handheld - The TI-89
12. Jim Donnelly
Fun with Input Forms
13. Ted Kerber
Surveying Data Collection with the HP 48
14. Brian Walsh
HP 48 Help System
15. Richard Nelson
Storing Thermocouple Tables on the HP 48G/GX
16. Panel
Q & A with HP and Others
HHC 1997

September 21-22, 1997, London, England #4
HPCC, Imperial College
2. Chris Wallin (HP Australia)
New Australian Calculator Operation
3. Richard Kirby (HP Europe)
Calculator traditions, past and future
4. Garry Heinze (HP Australia)
Future trends of calculator development at HP
5. Graham Cawsey
The HP 320LX
6. Eric Vogel (HP)
The Logic Dart, A Different Kind of HP Handheld
7. Richard Nelson
Comments on the PLDL-100 I/O box for the HP 48 plus announcements
8. Jake Schwartz and Jean-Yves Avenard
Basic Features of the HP 48 Metakernel / Advanced Metakernel Features
9. Joost van't Spijker
Skyline Functions and Graphic Calculators
12. HP Panel
Q&A from the audience
14. Eric Vogel
Personal views on the recent evolution of the HP calculator division
16. Phillippe Roussel
The ALG48 Math Library for the HP 48
17. Gerlof Donga
A Personal View of the Future of Calculators
18. Tony Duell
I2C: The New HP-IL?
19. Megha Shyam
New Products for the HP 38/48 from DaVinci Software
21. Wlodek Mier-Jedrzejowicz
The Right Job for the Right Tool?
22. Marc Staps
The Dutch Calculator Museum and the HP-35
23. Enrico Tedeschi
Collecting Calculators
24. Phillippe Roussel
Integer Wordsize on the HP 48: What's in a Name?
27. Eric Vogel
Logic Dart Power Management
PAHHC 1997/Jun
Eric Vogel demonstrates the Logic Dart.

June 5, 1997, Philadelphia, PA
PAHHC,
1. Eric Vogel
HP Logic Dart
2. Eric Vogel
HP Notebooks, Palmtops, and Calculators Q&A
HHC 1996

August 24-25, 1996, Anaheim, CA
Shier Systems & Software, Anaheim Marriott Hotel
2. Kheng-Joo Khaw (HP)
Keynote Speaker
3. Joseph K. Horn
A Contrast Study of RPL, SRPL and Machine Code
4. Mary Long (GeoWorks)
PC Connectivity and the OmniGo 100
5. Wlodek Mier-Jedrzejowicz
Writing for Users and Writing for Collectors
6. Lawrence J. Dickson, PhD
Occam (tm) Road Map to DOS PC
7. Vern Lindsay
A New Classroom Data Logger
8. Mark Scardina (ACE Technologies)
Palmtop Electronic Mail
9. Jake Schwartz
An Overview of the HP 48 Meta Kernel: An Alternate User Interface
10. Avi Meshar (D&A Software)
Palmtops and Internet
11. T Stein, G La Borde and A. Zygielbaum
Use of the Palmtop in Amateur Radio Communication
12. Gilles Kohl
PAL - the Palmtop Application Library
13. Ted J. Kerber (D'Zign)
Programmer/End-User Interfacing - How Easy Are Your Programs to Use?
14. Jeff Molson (IBM Canada)
The Future of Palmtop Memory
15. Conrad Cox, S.P.A.M.
The Care and Feeding of Palmtop User Groups
16. David Erbas-White
An Expanded Memory Manager for 5MB Palmtops
17. Richard Nelson (EduCalc)
Using Nulls on the HP 48
18. Hal Goldstein (Thaddeus Publishing)
Why Do People Love Their HP Palmtop PC?
19. Brian Walsh
HP 48 String Utilities
20. David Shier (Shier Systems & Software)
Wireless Communications
21. Gary L. Friedman
The Data Egg - Fulfilling the Promise of Portable Computing
22. Carl Merkle
A Consumer's Perspective of the HP Palmtop
23. Chuck Willette (Sandisk)
PCMCIA Memory Cards
24. D.G. Johansen
Reusable Components for Rapid Application Development
25. Kheng-Joo Khaw (HP), Hal Goldstein (Thaddeus), Dennis Coffin (Grapevine)
Panel Discussion
HHC 1995

August 5-6, 1995, Minneapolis, MN
Craig Finseth, Mall of America
3. Kheng Joo Khaw (HP Singapore)
What's happening with HP handhelds and palmtops
4. David Shier
The Laptop in Your Pocket
5. Diana Byrne (HP Corvallis)
Telecommuting Thousands of Miles on the Internet
6. Andris Lauris (IBM)
Mass Storage Design Notes
7. Paul Hubbert
Battery and Ink Alternatives
8. Joseph Horn
Introducing Goodies Disk #10 and the HP 48 Hacker's ROM Card
9. Don Johansen
Card Basic Design Notes
10. Michael Dombroski
A One-Hand Keyboard for Palmtop Computers
11. Ron Johnson
Why I Lost My Enthusiasm for HP Calculators
12. Vern Lindsay (Firmware Co.)
FSI and the Rise of the Classroom Display
13. Bruce Bruemmer (Babbage Institute)
Preserving the History of Computing and Calculating
14. Mike Sharp
Time Management on HP Palmtops
15. Feng Yuan (HP Singapore)
Progress in Pascal Compiler for HP 48/38 Calculators
16. Jim Donnelly (HP Corvallis)
HP 38 Miscellaneous comments and demos
17. Eric Smith
Simulating HP Processors
18. Jim Donnelly
Focused Exploration With HP 38G Aplets
19. Jeremy Smith
That Would Be Cool
21. Patricia McArdle
Palmtops at the Harvard Medical School
22. Brian Walsh
HP 48 Solvers and Applications
23. Wlodek Mier-Jedrzejowicz
We're All Collectors Now
24. Rob Haack
Object-Oriented Business Design
25. Joe Powell (HP San Diego)
Tracking Computer Satisfaction Issues
26. Kent Peterson
Simplicity, Software and Shareware
27. Ed Keefe
Programming: The Next Generation; Visual, OOP
28. HP Panel
An HP Panel Fields Questions from the Audience
30. Jake Schwartz
The Vertical-Format Handheld User Interface
SCES 1995
Discussions on HP calculator emulators, HP 38G/48G.

July 28, 1995, Chicago, IL
CHIP Group, Red Cross Bldg
2. Joe Wally
High-End Sun Sparc Laptops for CAD/CAM Use
3. Wlodek Mier-Jedrzejowicz
Book about HP Calculators, Obscure Models Slideshow
4. Paul Hubbert
Batteries and Inkjet Printers
5. Richard Nelson
HP 38G Internal Tour and EduCalc
6. Eric Smith
Classic Calculator Simulators
PAHHC 1995/Jun/28
Jim Lawson introduces the HP 38G calculator.

June 28, 1995, Philadelphia, PA
PAHHC,
2. Jim Lawson
The New HP 38G
3. Jim Lawson
Q & A, Donnelly's Book, Rumors, etc
PAHHC 1995/Jun/17
Gene Rawdin demonstrates the HP 19BII calculator.

June 17, 1995, Philadelphia, PA
PAHHC,
1. Gene Rawdin
Using the HP 19BII Calculator
HHC 1994

October 1-2, 1994, Zandaam, Netherlands
Prompt, Hotel Inntel
1. Michiel Niemeyer
Matrices and Eigenvalues on the HP 48
3. Ferren MacIntyre
Buttons for the Singular-Value Decomposition
4. Diana Byrne
Development on the 48GX and the 48SX
5. Tim Campbell
Industrial HP 48 Applications
6. (unknown)
Odd Bringslid's Calculus Application Card for the 48
7. Kheng Joo Khaw
News from HP Singapore
8. HP Panel
Q & A Session
9. Toby Koenders
Judging Numbers
10. (unknown)
Debugging on the HP 42S
11. Ph. J. Roussel
Unit Objects, Complex Numbers, Solver, and more
12. (unknown)
New HP 200LX
14. (unknown)
HP 200LX Q & A Session
16. Bjørn Bringslid
Third Party Products for Calculators and Palmtops
17. Wlodek Mier-Jedrzejowicz
HP 48 Resources
18. (unknown)
Accessing HP Over the Internet with Mosaic
PAHHC 1993/Oct
Lew Thomas speaks on his two devices, the DublHdr and IL-95.

October 16, 1993, Philadelphia, PA
PAHHC,
1. Lew Thomas
DublHdr and IL95
PAHHC 1993/Jul
Jim Lawson speaking on the HP48G/GX.

July 21, 1993, Philadelphia, PA
PAHHC,
2. Jim Lawson
HP 48GX
SCES 1993
Dennis York (HP) Intros HP 48GX and HP 100LX.

June 3, 1993, Chicago, IL
CHIP Group, Red Cross Bldg
2. Richard Nelson and Dennis York
Slide tour of the HP 48G/GX
3. Dennis York
HP 48GX Demonstration
5. Dennis York
HP 100LX (with transparencies)
7. Jake Schwartz
HP 16C Emulator Library for the HP 48SX
HPCC 1992

September 19-20, 1992, London, England #3
HPCC, Imperial College
3. Jim Donnelly (HP Corvallis)
The Prehistory of Calculators
4. Craig Finseth
HP Data Base
6. David Frodsham (DIP)
Future of technology for handhelds and palmtops
7. Raan Young (HP Corvallis)
Demonstration of the HP-95 sending Email
9. Raan Young
Videotaped Hewlett-Packard Corvallis Division plant tour
10. Mark Ellis (HP U.K.)
HP's vision of the future of handheld devices
11. Richard Nelson
Educalc HP 48 Goodies Disk production by Joseph Horn
12. HP Panel
Q & A Session
15. Richard Nelson
Upcoming third-party products for HP handhelds
16. Brian Walsh
Proposed HP 48 "Help System"
17. Megha Shyam (Sparcom)
Sparcom's current and future products
18. Craig Finseth
The Anatomy of an HP 95 Software Application
19. Graeme Cawsey
Multilingual applications for the HP 95LX
20. Colin Mason (Mitsubishi Electric)
Memory Cards - Technology and New Directions
21. Brian Walsh
System RPL tools
22. Wlodek Mier-Jedrzejowicz
Teaching using handhelds
23. Lee Woodruff
Computer algebra systems versus the HP 48
24. Jim Donnelly
Developing utilities for the HP 48 using HP's development tools
25. Jurjen Bos
Abusing HP 48 plot commands to draw recurrent functions
26. Jake Schwartz
Alternate index to the HP 48 manuals
27. Richard Nelson
Handheld conferences past and future
SCES 1992
Various talks on HP 48/95 topics.

May 29, 1992, Franklin Park, IL
CHIP Group, Ace Metal Crafts
2. Bill Quinlan
Macintosh Powerbook with the HP 95 and HP 48
3. Dave Goodman
HP 95 software products
4. Hal Goldstein (Palmtop Paper)
Various HP 95 topics
5. Richard Nelson
Changes in the handheld computing world, fall 1993 conference, and future palmtop products
6. Ted Dickens
HP Forum on Compuserve BBS (mostly HP 95-related)
7. Michael Katz
Production process of CD-ROM discs
8. Jake Schwartz
Rick Grevelle's machine-code HP 48 library builder
HHC 1992

March 28-29, 1992, Philadelphia, PA
Philadelphia Area HP Club, Drexel University
3. Richard Nelson (EduCalc)
Third Party Product Development
4. Dennis York (Hewlett-Packard)
Production Development Stages on HP 48
5. Ray LaBarbara
EZ Math Software for the HP 95 and HP 48
6. Fred Linton
Delta Configuration A/B Switches
7. Lew Thomas
An HP 95LX HPIL Interface
8. John Wettroth (Travtech)
HP Handheld Digital/Analog I/O Boxes
9. Brian Maguire
An HP 48 System RPL Development ROM Card
10. Chris Smith (Essex Marketing)
HP 95 UTIL FORTH system
11. Dennis York (Hewlett-Packard)
How would HP 48 users improve the HP 95?
12. Brian Walsh
HP 48 Memory Management Utilities
13. Dennis York (Hewlett-Packard)
The HP 95/Motorola Newsstream Pager Project
14. Ted Dickens (Compuserve)
BBS HP Activities
15. Karl Smith (Sparcom)
Device Drivers for Sparcom's Drive95
16. Richard Nelson (EduCalc)
HP 48 Public Domain Software ROM Cards
CHIP 1992/Feb
Megha Shyam of Sparcom talks about new Sparcom products.

February 26, 1992, Chicago, IL
CHIP Group,
2. Megha Shyam
New Sparcom Products and Product Development
HHC 1991

August 2-4, 1991, Corvallis, OR
Richard Nelson, Oregon State University
4. Lewis C. Thomas
Palmtop Interfaces
5. David Engle and Frank Wales
Historical Development Overview of a Drilling Applications Module for HP 48
6. John M. Wettroth
Control the World, Data Acquisition and Control with the HP 48
7. Greg Samker
Hewlett-Packard Bulletin Board System
8. Richard J. Nelson
Producing a Commercial Product
9. Brian Walsh
All Sorts of HP 48 Utilities
10. Gary L. Friedman
The Data Egg - A New Solution To Text Entry Barriers
11. Aaron Boonshoft
Boony Box Technology
12. Bernie Musch and Steve Chou
Tripod Data Systems Multimemory Cards and File System
13. Eric Vogel
Reengineering the HP 32S
14. Bobert Bellman
Data Acquisition, Reduction, and Analysis Using HP 48SX Calculator
15. Dave Marsh
Infrared Sampling of TV Remotes
16. Bob Moore
'Jag + Derive == Charlie + DOS + QWERTY' EVAL
17. Jake Schwartz
Optimizing the HP 48 Software User Interface
18. Rick Grevelle
HP 48 ROM Exploration
19. Wlodek Mier-Jedrzejowicz
Can a Club Design a Calculator?
20. Bob Pulluard
The Handheld Scene in Continental Europe
21. Lee Woodriff
Long Numbers on the HP 48SX
22. Craig A. Finseth
Freyja: An Emacs for the HP 95LX
23. Robert Des Verney
Interactive Self-checking HP 28S Newton-Raphson for Polynomial Roots
24. Jeremy Smith
The Matrix - BBS Networks
25. Thomas Dick
Super Calculators - Catalysts for Change in the Mathematics Classroom
26. Mark G. Forbes
Disks, DOS, and the HP 48SX
28. Jim Donnelly
RPL Development Tools - HP 48 Library Builder
29. HP Panel
General Q & A on Technical Subjects
30. Ted Dickens
Compuserve HP Forum, etc
31. Ron Johnson
Data Streamer
35. Eric Vogel
Q & A Session by Richard
PAHHC 1991/Apr
Eric Vogel of HP introduces the HP 95LX.

April 29, 1991, Philadelphia, PA
PAHHC,
2. Eric Vogel
Introduction, Marketing Materials, Introducing the HP 48S
3. Eric Vogel
Updates to the HP 32SII
4. Eric Vogel
Introduction to the HP 95LX
CHIP 1991/Apr
Eric Vogel of HP discusses the HP 32SII, HP 48 PDL, and HP 48S.

April 10, 1991, Chicago, IL
CHIP Group,
2. Eric Vogel
Introducing the HP 48S
3. Eric Vogel
Introducing PDL
4. Eric Vogel
Updates to the HP 32SII
5. Eric Vogel
Q & A Session (48, 28, 32, and more)
PAHHC 1990/Nov
Bill Wickes discusses the HP 48SX.

November 11, 1990, Philadelphia, PA
PAHHC,
2. Bill Wickes
Q & A Session
HHC 1990

June 2, 1990, Rolling Meadows, IL
CHIP Group, HP Sales Office
12. Brian Walsh
Customizing the HP 48SX User Interface
13. Ron Johnson
User Programming Experiences
14. Bill Quinlan
Practical and Fun Applications on the HP 48SX
15. Eric Vogel
The HP 48SX Equation Library (5 F + 5 F = What??)
16. Lee Woodriff
Simplified 3-D Graphics for Handheld Computers
17. Jake Schwartz
HP 48 RPL: Personal Problem Solving Reaches New Height
18. Namir Shammas
The New Framework of the HP 48SX
19. William Wickes
HP 48SX Software Development Questions and Answers
20. Brian Maguire
HP 28/48 3-D Graphing
21. Paul Hubbert
Kermit and the HP 110 Portable Computer
23. Jim De Arras
Serial Interfacing with the HP 48SX Calculator
24. Bill Wickes
Q & A Session
25. Brian Walsh
Graphics in menus on the 48
26. Ron Johnson
Development of libraries on the 48
HHC 1989

June 3, 1989, Melrose Park, IL
CHIP Group, Triton College
2. William J. Quinlan Jr
A Businessman's Transition from the HP 41 to the HP 42S
3. Jake Schwartz
Migration From the HP 41CX to the HP 28S: A Personal View
4. Richard G. Siegal
Hi-Code Scanner Report - Automatic Computer Company
5. R. Lee Woodriff
Handheld Computers and Calculators: The Death of Education or its Salvation
6. Richard Leadford
The Impact of Battery Technology on the Design of Portable Computer Products
7. Ron Brooks
Hewlett-Packard after 50 Years
8. Ron Brooks
Questions and Answer Session with HP
9. Paul Hubbert
A System to Run Programs and Subroutines in EFM/XM Made Easy
10. Brian Walsh
Applications of Symbolic Calculus, Curve Fitting, and Solver
11. Bob Prosperi
The Sharp Wizard
SCES 1988
Ron Brooks (HP) intros HP 22S and 32S.

June 3, 1988, Franklin Park, IL
CHIP Group, Ace Metal Crafts
2. Ron Brooks
Introducing the HP 22S and HP 32S calculators
3. Bill Quinlan
HP 27S and 19B Business Applications
WCES 1988
Dennis York (HP) intros HP 28S, 19B, 17B, 27S.

January 9, 1988, Las Vegas, NV
WCES HHC, Dennys
2. Dennis York
Introducing the HP 28S, HP 19B, HP 17B and HP 27S calculators
3. Tim Meyers (CMT)
New products (RAM module EPROM, environmental case with display, handheld PC)
4. Bill Rudersdorf (Southern Software)
Link software for a PC to be an HP-IL device
5. Ken Emery
Surveying code for the 41 and other developments
6. Richard Nelson
PC infrared printer emulator
CHHU 1987
Bill Wickes (HP) introduces HP 28C.

February 5, 1987, College Park, MD
CHHU Washington Chapter , University of Maryland
2. Bill Wickes
Introducing the HP 28C
3. Jake Schwartz
Initial impressions of the 28C and resulting lack of future of a CHHU 71 ROM
4. Bill Wickes
Q & A Session about the HP 28C
SCES 1986
Janet Cryer and Nancy Ullman (HP) introduce HP 18C.

May 30, 1986, Franklin Park, IL
CHIP Group, Ace Metal Crafts
3. Nancy Ullman
HP Technical Support
4. Janet Cryer
Introducing the HP 18B
5. Mike Markov
Memory Copies
7. Ken Emery
Expanded IL ROM
11. Nick Ledford
Multi-cell NiCad batteries
12. Brian Walsh
Copy counting on HP-71
13. Larry Walple
Hyper 41
14. Barry Altman
HP-41 Alarms
15. Jeff Brown
HP-94
16. Richard Nelson
CHHU Report and imminent demise of PPC