{hemmerling] Mobile computers, handhelds, organizers, programmable calculators

Related pages:

• Google Android 8/8 - Hardware.
• Time ( Clocks, Watches,.. ).

• Texas Instruments' 68K powered Calculators "TI-89 Titanium", "TI Voyage 200".

• Calculator. You can write applications in BASIC and binary applications in C and assembly language.
• CASIO Europe, Germany.
  • CASIO Europe, Germany "Algebra FX2.0Plus".
• silrun Systems - “The home of programmable Casio pocket calculators”.
  • silrun Systems "Casio manual comparison list" - Download of CASIO manuals.
• Martin Poupe "Hacked CASIO graphic calculators".
• Planet-casio.

• Calculator. You can write applications in BASIC, ARM9 assembly language and RPL.
• hpcalc.org - “The premier source of software for and information about the HP 50, HP 49, HP 48, and HP 28 RPN programmable graphic calculators and the HP 38G, HP 39, and HP 40 programmable graphic calculators”.
• Hewlett Packard "Grafik-Taschenrechner", Germany.
• Hewlett Packard "HP 50g Grafik-Taschenrechner.Merkmale & Überblick - Germany.
• Hewlett Packard "HP Calculators", Hewlett Packard "HP Calculators", USA.
• Hewlett Packard Store "Monitors & Accessories".
• Hewlett Packard, Search "49gplus".
• Hewlett Packard, Search "50g".

• Calculators, programmable in BASIC & assembly language.
• PROM Software Inc. "Sharp Pocket Computers, Printers, Cables, Level Converters & Accessories".

• Organizer, powered by an CPU of the MC68000 family.
• You can write binary applications in “C/C++” language.
• Palm DE - Hewlett-Packard Development Company, L.P, Germany.

• GTReasy, CASeasy are for Android tablets, not for Android smartphones.
• Schroedel - Taschenrechner-Apps - GTR und CAS als App "GTReasy - der grafikfähige Taschenrechner als App, ISBN: WEB-507-87605".
• Schroedel - Taschenrechner-Apps - GTR und CAS als App "CASeasy - das Computeralgebrasystem als App, ISBN: WEB-507-87606".
• GTReasy - Calculator without CAS, TI-84 alike functionality.
• CASeasy - Calculator with CAS.
• Google Play "GTR easy".
• Google Play "CAS easy".

• Software calculators Texas Instruments Education "Computer Software".
• Hardware calcultors Texas Instruments Education "Software Test-Versionen, Updates & Apps" - “TI-Nspire Student Software - 30-day Trial”.
• DE.Wikipedia "TI-Nspire", EN.Wikipedia "TI-Nspire series".

• reMarkable - “The next-generation paper tablet. Replace your notebooks and printed documents with the only tablet that feels like paper”.

• My LCD writing pad “REFLECTS-GÖTEBORG, 52451-BK”.
  • Werbeartikel von REFLECTS GmbH.
    • REFLECTS GmbH "LCD-Schreibtafel REFLECTS-GÖTEBORG schwarz".
  • BETTMER "reflects LCD-Schreibtafel Göteborg, schwarz/schwarz".
  • Battery: CR2016 = CR2025: lithium, 20 mm diameter, 1.6 mm height, 3V.
    • EN.Wikipedia "Button cell", DE.Wikipedia "Knopfzelle".
    • DM "Spezialzellenbatterie / Lithium CR-Typ 2016, 2 St".
  • My feedback:
    • “Erase Lock” positions:
      • “ON” = Pressing the “Erase” button erases the screen.
      • “OFF” = Pressing the “Erase” button does not erase the screen.
    • The write-protection “Erase Switch” prevents from erasing by the “Erase” button, but does not prevent writing on the screen. Means if the writing pad is transported in any kind of bag, the pressure of the bad may cause some unwanted drawings on the screen .
    • How to transfer the written and painted contents from the writing pad to a PC or smartphone?
    • What is the power-consumption a) “Erase Switch” = ON b) “Erase Switch” = OFF?

• Amazon.DE - Search for "writing pads digital".
• YouTube "LCD Writing Tablet Not Erasing Fix / Repair".
• YouTube "Writing Tablet/Writing Pad Not Erasing - Fix".
• YouTube "LCD Writing Tablet - Battery Replacement".

• bk-teachware, Austria - TI books.
• Böttcher Datentechnik GmbH, Germany - “Taschenrechner und Komplettzubehör”.
• Chatwell-Yorke, UK - “TI-92 and TI-89 Books”.
• DynaTech - “Ihr Taschenrechner Spezialist”.
• EAE Mutterstadt - Elektronische Artikel Englmann, Germany - My personal vendor. The full set of paper manuals ( 330 pages and 1272 pages ), see photos, was shipped with my “Voyage 200” ! #.
• enteris elektronik - “für Sprachcomputer, Scan- & Übersetzerstifte, Eingabehilfen, Diktiergeräte, Taschenrechner und vieles mehr ...”
• Eric Armin Inc. (EAI) - Educational Products Division, USA.
• Telemedia 3000 Ltd. "Grafikrechner.com Shop für Schulrechner und Grafikrechner Taschenrechner", Germany and UK.
• TaschenrechnerShop, Pro Büro Emil Schulz Bürobedarf GmbH & Co. KG, Germany.

• The Museum of HP Calculators.
• The Museum of HP Calculators "RPL".
  • “Instead, HP combined elements of RPN, Lisp and Forth and came up with a language called Reverse Polish Lisp or RPL. From Lisp, RPL inherited concepts such as atomic and composite objects, temporary (lambda) variables, garbage collection, the ability to pass unevaluated objects as arguments etc. and from Forth, RPL inherited threaded execution and RPN notation with an unlimited stack”.
  • “The HP-28C was the first calculator to be both internally programmed in RPL and to make RPL available to the user”.
• EN.Wikipedia "Reverse Polish notation" ( RPN ), DE.Wikipedia "Umgekehrte polnische Notation" ( UPN ).
• EN.Wikipedia "RPL (programming language)", DE.Wikipedia "Reverse Polish LISP" ( RPL ) - “The last pocket calculator supporting RPL, the HP 50g, was discontinued in 2015”.
• EN.Wikipedia "HP-28 series", DE.Wikipedia "HP-28".
• EN.Wikipedia "HP calculators".
• EN.Wikipedia "List of Hewlett-Packard products - Pocket calculators".

• Facebook "Texas Instruments Vintage Calculators".
• Mobilfiles Forum.
• Detached Solutions, Forum.
• Google Groups "tinspire", Google Groups "bit.listserv.calc-ti", Google Groups "bit.listserv.graph-ti".
• TechniCalc Forum.
• TI-89.org Forum.
• TI-Planet.org Forum.
• Texas Instruments "TI Discussion Groups", discontinued ( - 2009-07-15 ).
• United-TI Forum.

• DCF - Deutsches Casio-Taschenrechner Forum.
• Planet-casio Forums.
• UCF - Universal Casio Forum.

• Facebook "Real Engineers Use HP Calculators".
• Google Groups "comp.sys.hp48".
• Hewlett Packard "Enterprise Business Community, HP Online Forum".
  • Hewlett Packard, Business Support Forums "calculators".

• HP Handheld Conference.
  • HP Handheld Conference 2000, USA - “HHC 2000 was the 24th international HP Handheld Conference of users of handheld computers and programmable calculators, especially those made by Hewlett Packard”.
  • ...
  • HP Handheld Conference 2019, USA.
  • HP Handheld Conference 2020.
  • HP Handheld Conference 2021, USA.

• OpenDirectory "Top: Computers: Hardware: Calculators".
  • OpenDirectory "Top: Computers: Hardware: Calculators: TI Graphing Calculators".
    • OpenDirectory "Top: Computers: Hardware: Calculators: TI Graphing Calculators: TI-89".
  • OpenDirectory "Top: Computers: Hardware: Calculators: Casio Graphic Calculators".
• OpenDirectory "Top: World: Deutsch: Computer: Hardware: Taschenrechner".
• Yahoo! Directory "Directory > Computers and Internet > Hardware > Calculators".
  • Yahoo! Directory "Directory > Computers and Internet > Hardware > Calculators > Texas Instruments".
  • Yahoo! Directory "Directory > Computers and Internet > Hardware > Calculators > Casio".
  • Yahoo! Directory "Directory > Computers and Internet > Hardware > Calculators > Hewlett Packard".
    • Yahoo! Directory "Directory > Computers and Internet > Hardware > Calculators > Hewlett Packard: HP 48".