This page (revision-50) was last changed on 03-Feb-2023 15:25 by Roland B. Wassenberg 

This page was created on 04-Oct-2012 10:01 by Carsten Strotmann

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Version Date Modified Size Author Changes ... Change note
50 03-Feb-2023 15:25 8 KB Roland B. Wassenberg to previous
49 03-May-2019 22:41 8 KB Roland B. Wassenberg to previous | to last
48 03-Jul-2017 11:25 8 KB Florian Dingler to previous | to last
47 27-Jun-2017 16:00 8 KB Roland B. Wassenberg to previous | to last
46 10-Dec-2016 19:03 8 KB Roland B. Wassenberg to previous | to last
45 10-Dec-2016 18:59 8 KB Roland B. Wassenberg to previous | to last
44 10-Dec-2016 18:43 8 KB Roland B. Wassenberg to previous | to last
43 10-Dec-2016 18:20 7 KB Roland B. Wassenberg to previous | to last
42 15-Sep-2016 16:39 7 KB Roland B. Wassenberg to previous | to last
41 01-Sep-2016 09:07 6 KB Roland B. Wassenberg to previous | to last

Page References

Incoming links Outgoing links
Atari Calculator
Atari Calculator

Version management

Difference between version and

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[{TableOfContents }]
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The Atari Calculator is an advanced non-programmable as well as programmable calculator that supports RPN, ALG and ALGN calculation modes. Calculator goes far beyond the limits of Atari Basic’s mathematical capabilities, precision and has no bugs.
the Atari Calculator is an advanced non-programmable as well as programmable calculator that supports RPN, ALG and ALGN calculation modes. Calculator goes far beyond the limits of Atari Basic’s mathematical capabilities, precision and has no bugs.
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[{Image src='Calculator_selling.jpg' width=334 height=852 }]
Atari Calculator description 1\\
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[{Image src='Atari Calculator description.jpg' width=485 height=705 }]
Atari Calculator description 2\\
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!! Source Codes
* [Atari Calculator source code|Colleen_Calculator_source_code.txt] ; size: 295 KB ; Thank you so much Atari_Ace from AtariAge for your help in creating the code. We really appreciate your help, please go ahead! :-)))\\
* [Atari OS A Colleen Floating Point Routines|Colleen_Floating_Point_Routines.txt] ; size: 45 KB ; Thank you so much Atari_Ace from AtariAge for your help in creating the code. We really appreciate your help, please go ahead! :-)))\\
!! ROM-Image
* [Atari_Calculator.rom] ; Thank you so much Peter Dell for creating the ROM file. That was really a big one! :-)))
!! ATR-Images
Atari Calculator disk image: [Atari Calculator/Calculator.atr]\\
Atari Calculator disk image with CX85 driver: [Atari Calculator/Calculator-CX85.atr]\\
Atari Calculator disk images with colored versions: [Atari Calculator/Color.zip]\\
Atari Calculator disk image for the Commodore 64: [http://web.utanet.at/nkehrer/atari_calc.html]\\
Incredible porting from Dr. N. Kehrer, creator of the Atari Asteroids Emulator. Highly recommended!\\
!! Manuals
In the content pages (page vii to xii in the manual or page 5 to 10 in the PDF-file) it is possible through a click on the line to directly jump to the desired page. The same is true for the index (page 187 to 190 in the manual or page 197 to 200 in the PDF-file). With the back button in Adobe Reader a direct jump from the desired page back to the content or index page is possible.
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Screen optimized manual (22 MB): [Atari Calculator/Atari_Calculator_Manual_Optimized.pdf]\\
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Printer optimized manual (117 MB): [http://strotmann.de/~cas/download/atari/Atari_Calculator_Manual_Original.pdf.gz]\\
In the content pages (page vii to xii in the manual or page 5 to 10 in the PDF-file) it is possible through a click on the line to directly jump to the desired page. The same is true for the index (page 187 to 190 in the manual or page 197 to 200 in the PDF-file).
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Atari Calculator disk image: [Atari Calculator/Calculator.atr] \\
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Atari Calculator Cartridge Specifications from Carol Shaw from March 1979 (1.2 MB): [Atari_Calculator_Cartridge_Specifications.pdf]\\
Atari Calculator disk image with CX85 driver: [Atari Calculator/Calculator-CX85.atr] \\ \\
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Atari Calculator Cheat Sheet [Atari_Calculator-Cheat_Sheet.pdf] from [inverseatascii|https://inverseatascii.info/]
Atari Calculator disk image for the Commodore 64: [http://web.utanet.at/nkehrer/atari_calc.html] \\
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Atari Calculator on the 14th Vintage Computer Festival Europe: [AtariCalculator-VCFe14]\\
!! References
* [Atari Calculator source code|https://archive.org/details/ColleenCalculator] ; Thank you so much Harry & Kay for your help in getting the code. We really appreciate your help, please go ahead! :-)))\\
* [Atari 400-800 Operating System Source Listing of the floating point routines|https://archive.org/details/ColleenFloatingPointRoutines] ; Thank you so much Harry & Kay for your help in getting the code. We really appreciate your help, please go ahead! :-)))\\
* [WUDSN-site for Atari Calculator|http://www.wudsn.com/index.php/productions-atari800/tools] ; Highly recommended, not only for Calculator! Thank you so much Peter Dell!\\
* [AtariAge site on Calculator and Colleen Floating Point source codes|http://atariage.com/forums/topic/256541-colleen-floating-point-routines-and-colleen-calculator-source-code/] ; Thank you so much Atari_Ace from AtariAge for your help in creating the code. We really appreciate your help, please go ahead! :-)))
Incredible porting from Dr. N. Kehrer, creator of the Atari Asteroids Emulator. Highly recommended! \\ \\
Screen optimized manual (22 MB): [Atari Calculator/Atari_Calculator_Manual_Optimized.pdf] \\ \\
Printer optimized manual (117 MB): [http://strotmann.de/~cas/download/atari/Atari_Calculator_Manual_Original.pdf.gz] \\ \\
Atari Calculator on the 14th Vintage Computer Festival Europe: [AtariCalculator-VCFe14] \\ \\
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[{Image src='Atari_Calculator2_.jpg' width=400 height=520 }]
[{Image src='Atari_Calculator2.jpg' }]
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[{Image src='calculator_cart.jpg' width=409 height=394 }]
Atari Calculator cartridge: The Atari Calculator was originally scheduled as a cartridge. Because Atari did not manage it to sell this in 1979 and on top needed 2 more years to publish it on diskette in 1981, we decided to honor the author of Calculator, Carol Shaw, with the creation of a cartridge label, which matches best the design of those times. The next free CXL-number was assigned so, but you as the reader know, it should have been a CXL-number with a double zero "00" ;-). The creation of the label, its accuracy, its colors etc. would not have been possible without [Oliver Rapp|http://des-or-mad.net]. Oliver, we all thank you so much! Please go ahead with your outstanding work in graphics and design.
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Calculator after starting with $CA in $02C5 and $34 in $02C6
Calculator after starting
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[{Image src='Modi.jpg' width=605 height=240 }]
[{Image src='Modi.jpg' }]
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[{Image src='Color2_.jpg' width=384 height=240 }]
Calculator with $0F in $02C5 and $00 in $02C6
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[{Image src='Atari_Blue.jpg' width=384 height=240 }]
"Atari Blue"-Calculator with $94 in $02C6
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[{Image src='Dark_Blue.jpg' width=384 height=240 }]
Calculator with $90 in $02C6
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[{Image src='Green.jpg' width=384 height=240 }]
Calculator with $C3 in $02C6
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[{Image src='Pink.jpg' width=384 height=240 }]
Calculator with $46 in $02C6
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[{Image src='Yellow.jpg' width=384 height=240 }]
Calculator with $FF in $02C6
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[{Image src='Genauigkeit1.jpg' width=432 height=240 }]
[{Image src='Genauigkeit1.jpg' }]
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[{Image src='Genauigkeit2.jpg' width=744 height=240 }]
[{Image src='Genauigkeit2.jpg' }]
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[{Image src='C64.jpg' width=446 height=279 }]
Precision of Commodore 64 Basic V2
[{Image src='Visicalc.jpg' width=328 height=110 }] [{Image src='CalculatorVisicalc.jpg' width=328 height=198 }]
Precision of Calculator against Visicalc (1980) and SpeedCalc (1986, same result as Visiscalc without figure)
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[{Image src='Genauigkeit_Calculator.jpg' width=327 height=198}] [{Image src='Genauigkeit_Visicalc.jpg' width=328 height=109 }] [{Image src='Genauigkeit_Speedcalc.jpg' width=329 height=111 }]
Precision of Calculator (1979) in comparison with Visicalc (1980) and SpeedCalc (1986)
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[{Image src='SumCal.jpg' width=440 height=267}] [{Image src='SumExcel2011.jpg' width=412 height=373 }]
Precision of Calculator (1979) in comparison with MS Excel PC (2010) Mac (2011) (German edition) ; In late 2015 Microsoft finally fixed the problem. Thank you Microsoft. :-)
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[{Image src='Programm2.jpg' width=390 height=240 }]
[{Image src='Programm2.jpg' }] \\ \\
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[{Image src='Anzahl_Befehle.jpg' width=535 height=240 }]
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[{Image src='Anzahl_Befehle.jpg' }] \\ \\
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[{Image src='Calculator_original_source_code_listing.jpg' width=800 height=534 }]
Calculator original source code listing (1979)
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[{Image src='Floating_Point_Routines_original.jpg' width=800 height=534 }]
Colleen original Floating Point Routines listing (1979)
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[{Image src='Carol.jpg' width=336 height=224 }]
Image of Carol Shaw when starting the cartridge
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[Author: Carol Shaw, creator of River Raid, 3D Tic-Tac-Toe and many other programs.|thanks#Carol Shaw]
Author: Carol Shaw, creator of River Raid, 3D Tic-Tac-Toe and many other programs.
Under support from Roland B. Wassenberg
This page (revision-50) was last changed on 03-Feb-2023 15:25 by Roland B. Wassenberg  Top