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Excellent 1980's Graphing Programmable Scientific Calculator My first graphing scientific calculator back in the middle - late 1980's. It has 422 bytes of programmable memory using a tokenized language which allows to create interesting tasks not covered by the built in functions, (such as 3d mesh graphics for functions, graphing the Mandelbrot set, and so on). Programming is easy, and the only shortcoming is the 422 bytes of memory only, but that can be sorted out doing clever programming by writing more efficient, and smaller code.
This calculator is quite durable, dependable, and easy to use. Battery life is awesome. This product comes with its original manual, a sheath, and its original boxing, (never opened before by the way). Old fashioned nowadays, but an excellent product. Verified purchase: Yes Condition: New.
Manual Portable Document Format (PDF) documents can be read with Adobe Reader software. We recommend that you download the large PDF files that are available from this site and view them off-line. To view the contents of a file 1.
Align your mouse pointer with the link to the PDF file that you want. If you are running Windows, right-click your mouse.
Casio Fx-7000ga Calculator
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The fx-7000GA is a calculator manufactured by the Casio Corporation of Japan in approximately 1987. This calculator is identical to the fx-7000G in every respect apart from minor cosmetic differences. Goethe ff clan. Both calculators have 82 scientific functions. The graphic display consists of 63 dots by × 95 dots for plotting graphs; however, it is also organised to display 8 lines of text where each line may have a maximum of 16 characters.
From the image at the top, you can see the keyboard and the functions that are available, and the manual is the best place to learn more about them. One of the interesting features of this calculator was the ability to express multi-statement functions manually and in program mode. This is where one may write multiple formulas or commands separated by colon symbols. This calculator comes from a very long line of graphing calculators going all the way back to the earlier 6000 series such as fx-6000G, and fx-6500G that had graphing capability.
The 6000 series had 32 dots by × 96 dots display; however, the 7000 series has an extended vertical display of 63 dots. Beatles revolver blogspot rar. The 6000 series was the most ground breaking in terms of technology, and this was because of the advances in low power memory IC by Sanyo.
This was also one of the earliest graphing calculators on the market placing Casio firmly in the lead. The electronic engineering behind the 6000 and 7000 series was very similar, and the main calculator chip is almost identical based on CMOS technology. What makes the 7000G better is that it had a bigger LCD screen, which became possible due to the improvements in the Liquid Crystal Display (LCD) driver chips. Programming Model / Language. The programming model is formula based with a mix of mnemonics for the conditional jumps and glyph symbols for variable assignment. The system architecture is Harvard based.
The programming storage space consists of a maximum of 422 steps, where each step occupies a byte of memory. The program area divides into ten sections P0 through P9. You could have ten independent programs in each storage space, or one main program with nine subroutines. The main program can then call these routines when required. The flow of program execution is very important and for that, you have the familiar “GOTO” command, as one would find in the BASIC language.
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For its time, it had a powerful programming language as it could also manage array-type memories, and pointers. It is very easy to program this, as the language would be second nature to any programmer. Just for fun, I wrote a program for the as this is something very easy to remember and it took just a few minutes. I made some games, learnt how the memory space was organised, and wrote a program for displaying the Mandelbrot set. This is normally difficult to achieve in 422 bytes, but after hacking its memory, I was able to use the variable register space as well. Physical Power Switch.
I bought this calculator in 2004 at Cash Converters, and even then, it was ancient for its time. I have always hated programmable calculators especially the ones that drew fancy graphs. I remember when I was in school, a rich kid brought one to class, and he was always showing off with it and fiddling with the buttons all day long. Of course, he had the entire brat pack of rich kids following him around. They were all middle-class, white, and into computers. They of course thought they were very superior destined for Cambridge, and I used to let them think so.
However, I had the ZX81 at home and was programming in Z80 assembly language, but I was not going to tell! I still remember my maths teacher in college advising us not to rely on graphics calculators too much. In Pure and Applied Mathematics, when you had to sketch a curve, the skill was in understanding the equation and being able to extract the necessary information such as points of intersection.
Being able to understand where the curve intersected the x-axis and the y-axis, and finding the turning points provided a deeper insight into the equation. Of course, these days you just enter the equation, and the calculator will plot it all for you and provide you with all the pertinent information. The average run of the mill student stopped using his brains two decades ago! The one thing the teacher forgot to mention was that if you were to use your brains, then over time you could solve these equations faster in your head, than it would take to program the calculator! This Article Continues.
Description This small paperback book describes the operation of the Casio fx-7000GA graphing calculator. The undated publication is well illustrated.
The calculator shown closely resembles the Casio fx-7000G, an example of which is 2000.0146.01. Both that calculator and the manual were used at San Juan High School in Citrus Heights, California. Location Currently not on view date made ca 1990 maker Casio Computer Company place made Japan Physical Description paper (overall material) Measurements overall: 17.7 cm x 12.5 cm x.5 cm; 6 31/32 in x 4 29/32 in x 3/16 in ID Number 2000.3037.01 nonaccession number 2000.3037 catalog number 2000.3037.01 Credit Line Gift of Jeanne Shimizu and San Juan High School See more items in Data Source National Museum of American History.Please read before submitting the form. Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.
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