Valentin Albillo's HP Collection

Welcome to my new site and Happy New Year 2020.            Latest update #12 was uploaded Feb,5th  (5 new files) 

At long last, and thanks to Eric Rechlin's incredible generosity and invaluable help, I finally have this web site for my calc-related materials (HP, SHARP and other brands, as well as assorted vintage HP computers and other Misc topics) to be permanently online again, including Articles, Challenges, Programs, Pictures, Book Reviews, Selected Threads and more, all freely available for interested people to download and hopefully enjoy. Right now there are some 435 files available and I intend to eventually upload new materials iff I see enough interest, real-life chores permitting of course.

COPYRIGHT NOTICE

These articles, programs, pictures, their descriptions and other materials created by me are (c) Valentin Albillo, and can be used freely for non-profit purposes as long as (1) the contents aren't modified in any way and (2) the copyright is acknowledged.

In plain words, you can download them and use them for non-profit purposes but do not include them in any media and/or site for which you're asking money, do not tamper with their contents and do not say or imply that you created them or that you don't know who created them, you must always give due credit to the copyright holder (that's me).

HP Calculators (244 files)

     HP Calculator Articles (33 files)

     HP Calculator Programs (21 files)

     HP Calculator Challenges (81 files)

     HP Calculator Pictures (38 files)

     HP Calculator Book Reviews (3 files)

     HP Calculator Selected Threads (68 files)

HP Computers (1 files)

     HP Computer Programs (1 files)

Sharp Pocket Computers (54 files)

     Sharp Articles (1 files)

     Sharp Programs (8 files)

     Sharp Pictures (28 files)

     Sharp Brochures (1 files)

     Sharp Book Reviews (6 files)

     Sharp Selected Threads (10 files)

Other Brands (10 files)

     Other Pictures (10 files)

Assorted Miscellaneous (126 files)

     Miscellaneous Pictures (126 files)

Latest Additions

  1. Added HP Program VA420 - HP-41C Eigenvalues of Symmetric Matrices - Jacobi in category HP Calculator Programs on 2020-02-01
  2. Added Misc Picture VA146 - CPU Disassembly in category Miscellaneous Pictures on 2020-02-01
  3. Added Misc Picture VA149 - Cosmic Pacifiers in category Miscellaneous Pictures on 2020-02-01
  4. Added SHARP Thread VA006 - Sharp PC-1425 documentation in category Sharp Selected Threads on 2020-02-01
  5. Added SHARP Thread VA007 - SHARP PC1600 in category Sharp Selected Threads on 2020-02-01
  6. Added HP Article VA041 - HP-41C Mate w King Bishop Knight Practice in category HP Calculator Articles on 2020-01-14
  7. Added HP Picture VA281 - HP28S in category HP Calculator Pictures on 2020-01-14
  8. Added HP Picture VA289 - HP28S in category HP Calculator Pictures on 2020-01-14
  9. Added HP Thread VA003 - HP-65 helped discover Feigenbaum number in category HP Calculator Selected Threads on 2020-01-14
  10. Added HP Thread VA004 - Tradeoff dynamic allocation vs More Memory in category HP Calculator Selected Threads on 2020-01-14
  11. Added HP Thread VA005 - Trigonometrics in financial applications in category HP Calculator Selected Threads on 2020-01-14
  12. Added HP Thread VA006 - Speed in category HP Calculator Selected Threads on 2020-01-14
  13. Added SHARP Thread VA003 - OT Sharp PC-1270 interesting non-HP in category Sharp Selected Threads on 2020-01-14
  14. Added SHARP Thread VA004 - HP and SHARP in category Sharp Selected Threads on 2020-01-14
  15. Added Misc Picture VA140 - Krakatoa Exploding in category Miscellaneous Pictures on 2020-01-14
  16. Added Misc Picture VA259 - Iridescent Sea Life in category Miscellaneous Pictures on 2020-01-14
  17. Added HP Computer Program VA010 - A Simple Checkmate Searching Program in category HP Computer Programs on 2019-12-10
  18. Added HP Program VA415 - HP-41C Systems of 1st-order Differential Equations in category HP Calculator Programs on 2019-12-10
  19. Added HP Program VA346 - HP-34C Factoring-GCD-Decimal to Fraction in category HP Calculator Programs on 2019-12-06
  20. Added HP Program VA345 - HP-34C Nonlinear Equations Systems in category HP Calculator Programs on 2019-12-04
  21. Added HP Picture VA152 - HP-15C in category HP Calculator Pictures on 2019-12-04
  22. Added HP Picture VA415 - HP-41CX in category HP Calculator Pictures on 2019-12-04
  23. Added SHARP Picture VA245 - SHARP PC-1246 Manual (as Tandy PC-8) in category Sharp Pictures on 2019-12-04
  24. Added SHARP Picture VA510 - SHARP PC-1500A Applications Manual in category Sharp Pictures on 2019-12-04
  25. Added Other Picture VA019 - CASIO fx-7500G Manual in category Other Pictures on 2019-12-04