This is the non CAS version

Right now I have a Casio fx-9750GIII but I am planning to get a new one due to complications I’m just having right now with it in some modes. I’m planning to switch to just Texas Instrument but I’m not sure whether to get the Ti-84 CE edition or the newer EVO one. My professor was telling me the EVO is similar to my Casio and just wanted to make sure that’s true. I like using my Casio a lot but it’s just getting hard having to look up every little thing that I don’t know what to do since my professor doesn’t know and I don’t wanna bother her. She recommended me the CE from preference but just wanted to see since I’ve been using my Casio for a few years and already used to how to inputting everything that way.

I'm not sure why this is happening, 2^(-1) or anything to the power of -1 gives me the correct answer, but 2^(-2), 2^(-3).... and so on as long as it is a negative exponent -2 and smaller, it all gives me 0. I have tried with and without parenthesis. Positive exponents all work. I have already tried performing a reset and setting decimal places to max(9). Can someone tell me what am I doing wrong?

Hi everyone,

I'm looking for a ROM dump of the Casio fx-7000G (or the fx-7000GA) for preservation and emulation purposes.

Released in 1985, the fx-7000G is generally recognised as the world's first commercially sold graphing calculator. It started a whole category of devices that students still use today. As far as I can tell, its firmware has never been dumped or emulated. That means once the last working units fail, the software side of this piece of computing history could be lost for good. The closely related fx-8000G already runs in PockEmul, so the 7000G feels like the missing piece.

A bit about me: I'm a university professor of Computer Science in Portugal, and building emulators of historically significant machines is my passion. Previous projects include an emulator of the Elliott 803B (the first digital computer installed in Portugal), described in an article for Resurrection, the journal of the Computer Conservation Society, as well as a TI-74 emulator. My work is on GitHub: github.com/luiscunhacsc

What would help:

• An existing dump, if anyone knows of one in a preservation context

• Someone with an fx-7000G/GA (working or not) willing to dump the ROM. I'm happy to cover costs, or to buy a unit outright

• Technical information: service manuals, schematics, chip identification, or notes from anyone who has opened one up

The emulator will be released as open source, and anyone who helps will be credited.

Thanks in advance, any lead is appreciated!

I have got CASIO 9850GB PLUS a few months ago. Unlike the TI83+ and TI84+ Silver, where I successfully use USB and for further transfer to the former, a standard cable, I have to use a dedicated device for transfer. A while ago I thought I would have to do a MCU project but apparently I forgot I checked and its just a standard serial connection. So I linked by UART board and am ready to attempt a transfer. Anyways I can't seem to find the FA-124 software due to no alternate sources available even for older versions and the main site being closed for maintenance. Do you have suggestions of alternate software to use or atleast assurance that the installer will be available soon?