<P> There are three different types of programs which can be downloaded or programmed into the calculators: TI - BASIC, Z80 assembly language, and Flash applications (also written in Z80 assembly). The TI84 + CE is different in that programs are written in TI - BASIC, eZ80 assembly language, or in the C programming language . In addition, there are programs available that are able to compile or interpret other programming languages . Also, there are several languages developed by community members for the calculators, notably ICE, which is for the TI84 + CE, and Axe, which is for the TI84+ and TI84 + SE . There are a wide range of applications that this produces, from science classes, to games, to calculus to note taking (when put together with a separately sold keyboard). The TI - 84 Plus Series is exactly like its predecessor in that it can be used on the SAT and ACT examinations as well as International Baccalaureate examinations . However, in some cases those administering the exam may reset the calculator's memory beforehand to prevent cheating through the use of built in programs or other data . </P> <P> When OS 2.30 was initially released, users noticed the speed of graphing was greatly reduced . The explanation was that the update added asymptote checking in graphing . </P> <P> In January 2006, Texas Instruments released v2. 40 of the operating system for the TI - 84 Plus series . The most noticeable addition to the new OS was the "Press - To - Test" feature that allowed a teacher to disable any programs installed on the calculator, so they cannot be used on tests, etc . As of OS version 2.53 MP which was released in February 2010, support was added for prettyprinted expressions . However, some programs stopped working correctly in this OS version, or were running slower . The current OS version is 2.55 MP which was released in January 2011 . </P> <P> In July 2009, a community - made patch was released which allowed user - made operating systems to be easily uploaded onto the TI - 84 plus series . Shortly after the patch was developed, the RSA keys for the calculator's operating system were factored via the General number field sieve (GNFS) algorithm, making a software patch unnecessary . In response to this, Texas Instruments released a newer hardware revision which only accepts other, stronger RSA keys, making it harder to load user - made operating systems or older TI operating systems (2.53 MP and earlier). The community has found a way around the newest limitation by discovering a way to revert to older versions of the boot code . </P>

Difference between ti-83 plus and ti-84 plus ce