Programmable graphing calculator TI-82
Hi, Giktayms!
Once, I was bored, and I decided to make a small gift for myself by buying something from old iron.
I noticed an old graphical calculator made by Texas Instruments, and I immediately liked it, since I had already heard that many games and other programs were written for TI calculators.
')
Probably, only a few have heard about Texas Instruments' graphic calculators, and at Habré and Giktayms they are generally mentioned only once every few years without much attention.
In general, many calculators of this company are now used in American schools.
Today we will talk about the TI-82, this simplified model of the TI-85 calculator was produced and maintained from 1993 to 2004. It differs in reduced functionality and lower screen resolution (96x64 vs. 128x64).
The calculator itself looks like this:
The calculator comes with a protective cover that slides in front or behind.
It runs on four AAA batteries and one CR1616 / CR1620, which is needed to maintain 32 kilobytes of RAM, where data and programs can be stored.
The battery compartment is covered with a lid, under which we see:
When first turned on, the screen may appear fuzzy. But, fortunately, the contrast can be changed by pressing the [2nd] button and then [▲] or [▼] to increase and decrease, respectively.
The calculator itself has a fairly user-friendly interface:
To draw a graph, press [Y =]:
We type: [SIN] [X, T, Θ]
Press [2nd], then [MODE] (QUIT), then press [GRAPH].
This is the result:
But this is not the most interesting.
The calculator is programmed in TI-BASIC (a special dialect of BASIC).
To get started, click [PRGM].
Move the cursor to the item NEW: [▸] [▸].
We will see the item “Create New”. Click [1].
Now we are asked to enter the name of the program.
The text is entered in ALPHA mode (which can also be activated by the corresponding button), so that now you can enter the name of the program by pressing the buttons with white letters on top. Text is limited to eight characters.
Press [ENTER].
Now we can edit our new program.
We press [PRGM], the menu with commands will open.
Go to the item "I / O", select "Disp".
After the operation “Disp” has appeared in the text of our program, we turn on A-LOCK (ALPHA constantly? Not one character) by pressing [2nd], and after [ALPHA].
We type (note, the default editor is in Replace mode. If you want to insert text, press [2nd] [DEL]):
The "!" - factorial sign, it can be found by pressing [MATH] (by turning off ALPHA), and then going to PRB.
After typing the text of our program, press [2nd] [MODE] (QUIT) to exit the editor.
Now press [PRGM] and select the program:
Press [ENTER] twice. If everything went well, we will see:
Well, sort of, I explained the basics of use, but this is far from the limit. For the calculator, a large number of programs were also written in assembler and not only, but to download them, you will need a cable:
I recently received it, so if you liked the article, I can write a sequel.
UPD : continued .
Once, I was bored, and I decided to make a small gift for myself by buying something from old iron.
I noticed an old graphical calculator made by Texas Instruments, and I immediately liked it, since I had already heard that many games and other programs were written for TI calculators.
')
Probably, only a few have heard about Texas Instruments' graphic calculators, and at Habré and Giktayms they are generally mentioned only once every few years without much attention.
In general, many calculators of this company are now used in American schools.
Today we will talk about the TI-82, this simplified model of the TI-85 calculator was produced and maintained from 1993 to 2004. It differs in reduced functionality and lower screen resolution (96x64 vs. 128x64).
The calculator itself looks like this:
The calculator comes with a protective cover that slides in front or behind.
It runs on four AAA batteries and one CR1616 / CR1620, which is needed to maintain 32 kilobytes of RAM, where data and programs can be stored.
The battery compartment is covered with a lid, under which we see:
When first turned on, the screen may appear fuzzy. But, fortunately, the contrast can be changed by pressing the [2nd] button and then [▲] or [▼] to increase and decrease, respectively.
The calculator itself has a fairly user-friendly interface:
To draw a graph, press [Y =]:
We type: [SIN] [X, T, Θ]
Press [2nd], then [MODE] (QUIT), then press [GRAPH].
This is the result:
But this is not the most interesting.
The calculator is programmed in TI-BASIC (a special dialect of BASIC).
To get started, click [PRGM].
Move the cursor to the item NEW: [▸] [▸].
We will see the item “Create New”. Click [1].
Now we are asked to enter the name of the program.
The text is entered in ALPHA mode (which can also be activated by the corresponding button), so that now you can enter the name of the program by pressing the buttons with white letters on top. Text is limited to eight characters.
Press [ENTER].
Now we can edit our new program.
We press [PRGM], the menu with commands will open.
Go to the item "I / O", select "Disp".
After the operation “Disp” has appeared in the text of our program, we turn on A-LOCK (ALPHA constantly? Not one character) by pressing [2nd], and after [ALPHA].
We type (note, the default editor is in Replace mode. If you want to insert text, press [2nd] [DEL]):
The "!" - factorial sign, it can be found by pressing [MATH] (by turning off ALPHA), and then going to PRB.
After typing the text of our program, press [2nd] [MODE] (QUIT) to exit the editor.
Now press [PRGM] and select the program:
Press [ENTER] twice. If everything went well, we will see:
Well, sort of, I explained the basics of use, but this is far from the limit. For the calculator, a large number of programs were also written in assembler and not only, but to download them, you will need a cable:
I recently received it, so if you liked the article, I can write a sequel.
UPD : continued .
Source: https://habr.com/ru/post/369707/
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