If there is no way to improve this speed, it would be nice to create a buffer capable of storing a list of unhandled keypresses, which will have to be processed in order later, once the cpu is available again - it allready existed in the early 1990s on the HP-48 calculators. I admit that it is quite painful when using the TI-Basic editor in insert mode or when you are at the bottom of the screen, but maybe it's because I'm too accustomed to previous TI-z80 models and a new user wouldn't mind? The TI-84 Plus C Silver Edition ignores half of my keypresses! :O We must wait until the screen refresh is completed, or some keypresses are going to be ignored.įor example in the video below, I press four times the right arrow at the same speed on TI-84 Plus and TI-84 Plus C Silver Edition to navigate the menus. This means in particular that we can not use the calculator on the same typing speed as the old calculators. The key-by-key correspondence is relatively the same, but the 84 features some improved hardware. The TI-84 Plus is an enhanced version of the TI-83 Plus. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. But now on the TI-84 Plus C Silver Edition we see clearly see the refresh from top to bottom. The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. Navigating through those menus was instantaneous on the old TI-83 Plus and TI-84 Plus. Now for the system menus using the large font.
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