Well, ti83s don't have archive memory(ti83 plus does though) while ti84 has archive. Ti84s allow you to start a two digit label with a letter, while ti83 doesn't, which is why there is an ERR:VERSION when you try to transfer programs with labels like A4 from ti84 to ti83. Also, ti84s default connection cord is different from that of them ti83, and ti84 uses a mini-USB as ti83 uses a different one, the one labeled 'I/O' on the ti84.
No. I believe TI83+ and TI84 do use an operating system.
Short answer; you can't. But you can purchase (or borrow) a TI84 calculator and use the TI83's transfer cable to transfer data from the 83 to the 84 to your mac computer (the TI84 comes with a USB transfer cable).
On my graphing calculator, a TI84 Plus, I can enter the equation into the Y= (a button) and then graph it by hitting the Graph button.
Either press the carat button followed by a 3 or go to the math function and select cubed.
Press your Y = button, press X, press second button and then catalog. Press up button to save time and scroll up to > and press enter. then 4. This, >, symbol may be someplace else, but I do not renumber where and all symbols are in the catalog.
Assuming you're talking about the Texas Instruments series of calculators - it has a USB connector - you just need the relevant cable.
Go to Texas Instrument's homepage and search for the manual. It kind of has its own confusing programming language. In other words, it's not simple.
I believe that that isn't possible unless you have it ported to ti84 or you know how to. the file format is different, and the game is built for a separate calc.
You can find the Greatest Common Factor between two numbers by using the gcd function (which is found by pressing MATH and then choosing NUM and the top and scrolling down). For example, to find the GCF of 50 and 78, type: gcd(50,78)
The TI-85 was the second graphing calculator made by Texas Instruments. (The first was the TI-81). The TI-84 is a much newer version and has more functionality and memory. The only real advantage that the TI-85 has over the TI-84 is that it costs less. As far as where you are allowed to use the calculator, almost every test or class that allows a TI-85 will allow a TI-84 as well. The TI-84 is a much better investment. (If the TI-84 is too expensive, look into getting a TI-83. This model is also newer than the TI-85.)
Press 2ND and then MEM, (above +). Choose the seventh option, Reset.... In order to reset settings and not clear memory, choose the second option, Defaults.... Then choose the second option, Reset.
TI84 calculators can be purchased at retail stores such as Best Buy, Future Shop, Staples and Office Depot. Prices range at approximately $140 and can differ by retailer.