TI-84 Plus series: Difference between revisions
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{{Infobox Calculator |
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|name = TI-84 Plus |
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|image = TI-84_Plus_graphing.jpg |
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|caption = TI-84 Plus |
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|type = [[Graphing calculator]] |
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| entry = [[Calculator input methods#Infix notation|Algebraic Operating System]] |
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|manufacturer = [[Texas Instruments]] |
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|introduced = 2004 |
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|discontinued = |
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|predecessor = [[TI-83 Plus]] |
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|successor = [[TI-Nspire]] |
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|screen size= [[96 x 64 pixels]] |
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|processor = [[Zilog Z80]] |
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|frequency = 6/15 MHz |
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|memory_user = 128 KB or 48 KB [[Random-access memory|RAM]] (depending on hardware revision) of which 24 KB are user accessible. |
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|memory_rom = 1 MB Flash ROM (480 KB user-accessible) |
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|display = 96×64 pixels, 16×8 characters |
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|precision = |
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|link = |
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|prog_lang = [[TI-BASIC]], Z80 Assembly |
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|supply = 4 [[AAA battery|AAA]]'s,<br>1 SR44 button cell |
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}} |
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{{Infobox Calculator |
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|name = TI-84 Plus SE |
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|image = TI-84 Plus Silver Edition.JPG |
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|caption = TI-84 Plus Silver Edition |
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|type = [[Graphing calculator]] |
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| entry = [[Calculator input methods#Infix notation|Algebraic Operating System]] |
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|manufacturer = [[Texas Instruments]] |
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|introduced = 2004 |
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|discontinued = |
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|predecessor = [[TI-83 Plus Silver Edition]] |
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|successor = [[TI-Nspire]] |
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|screen size= [[96 x 64 pixels]] |
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|processor = [[Zilog Z80]] |
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|frequency = 6/15 MHz |
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|memory_user = 128 KB or 48 KB [[Random-access memory|RAM]] (depending on hardware revision) of which 24 KB are user accessible. |
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|memory_rom = 2 MB Flash ROM (1.5 MB user-accessible) |
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|display = 96×64 pixels, 16×8 characters |
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|precision = |
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|link = |
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|prog_lang = [[TI-BASIC]], z80 Assembly |
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|supply = 4 [[AAA battery|AAA]]'s,<br>1 SR44 button cell |
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}} |
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{{Infobox Calculator |
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|name = TI-84 Plus CSE |
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|image = The_proposed_Ti-84+_C_Edition_SE.jpg |
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|type = [[Graphing calculator]] |
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| entry = [[Calculator input methods#Infix notation|Algebraic Operating System]] |
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|manufacturer = [[Texas Instruments]] |
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|introduced = Spring 2013 |
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|discontinued = |
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|predecessor = [[TI-84 Plus Silver Edition]] |
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|successor = [[TI-84 Plus CE]] |
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|screen size= [[320 x 240 pixels (2.8" diagonal)]] |
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|processor = [[Zilog Z80]] |
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|frequency = 6/15 MHz |
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|memory_user = 128 KB [[Random-access memory|RAM]] of which 21 KB are user accessible. |
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|memory_rom = 4 MB Flash ROM (3.5 MB user-accessible) |
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|operating_system = OS 4.0 |
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|display = 320x240 pixels, 26 columns by 10 rows, 16-bit color |
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|precision = |
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|link = |
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|prog_lang = [[TI-BASIC]], Z80 Assembly |
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|supply = Rechargeable lithium-ion battery |
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}} |
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{{Infobox Calculator |
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|name = TI-84 Plus CE |
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|image = TI-84_Plus_CE_(red).jpg |
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|type = [[Graphing calculator]] |
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| entry = [[Calculator input methods#Infix notation|Algebraic Operating System]] |
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|manufacturer = [[Texas Instruments]] |
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|introduced = Spring 2015 |
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|discontinued = |
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|predecessor = [[TI-84 Plus C Silver Edition]] |
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|screen size= [[320 x 240 pixels (2.8" diagonal)]] |
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|processor = [[Zilog eZ80]] |
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|frequency = 48 MHz max. |
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|memory_user = 256 KB [[Random-access memory|RAM]] of which 154 KB are user accessible. |
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|memory_rom = 4.0 MB Flash ROM (3.0 MB user-accessible) |
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|operating_system = OS 5.0 |
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|display = 320x240 pixels, 26 columns by 10 rows, 16-bit color |
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|precision = |
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|link = |
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|prog_lang = [[TI-BASIC]], eZ80 Assembly |
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|supply = Rechargeable lithium-ion battery |
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}} |
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The '''TI-84 Plus''' is a [[graphing calculator]] made by [[Texas Instruments]] which was released in early 2004. There is no original TI-84, only the TI-84 Plus and TI-84 Plus Silver Edition models. The TI-84 Plus is an enhanced version of the [[TI-83 series|TI-83 Plus]]. The key-by-key correspondence is relatively the same, but the 84 features some improved hardware. The Archive (ROM) is about 3 times as large, and [[Central processing unit|CPU]] about 2.5 times as fast (over the [[TI-83 series|TI-83]] and [[TI-83 series#TI-83 Plus|TI-83 Plus]]). A [[USB]] port and built-in clock functionality were also added. The USB port on the TI-84 Plus series is [[USB On-The-Go]] compliant, similar to the next generation [[TI-Nspire]] calculator, which supports connecting to USB based data collection devices and probes, and supports device to device transfers over USB rather than over the serial link port.<ref>[http://www.ticalc.org/archives/news/articles/13/130/130297.html USB Peripherals for the 84+ - ticalc.org<!-- Bot generated title -->]</ref> |
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The '''TI-84 Plus Silver Edition''' was released in 2004 as an upgrade to the [[TI-83 series#TI-83 Plus Silver Edition|TI-83 Plus Silver Edition]]. Like the TI-83 Plus Silver Edition, it features a 15 [[Hertz|MHz]] [[Zilog Z80]] processor and 24 [[kilobyte|kB]] user available [[RAM]]. The [[Integrated circuit|chip]] has 128 kB, but [[Texas Instruments|TI]] has not made an [[Operating System|OS]] that uses all of it. Newer calculators have a RAM [[Integrated circuit|chip]] that is only 48 kB. All calculators with the letter H or later as the last letter in the serial code have fewer ram pages, causing some programs to not run correctly.<ref>{{cite web |url=http://www.omnimaga.org/other-calculator-discussion-and-news/the-missing-84-extra-ram-pages-(hardware-change) |title=Topic: TI-84+ hardware change info (causing all APPs using extra RAM pages to crash) |first= |last= |author=Multiple authors |date=3 October 2009 |page=1, Third post |accessdate=28 May 2010 }}</ref> There is 1.5 [[megabyte|MB]] of user-accessible [[Flash ROM]]. Like the standard TI-84 Plus, the Silver Edition includes a built-in [[USB]] port, a built-in clock, and assembly support. It uses 4 AAA batteries and a backup [[button cell]] battery. The TI-84 Plus Silver Edition comes preloaded with a variety of applications. These programs are also available for the TI-84 Plus, but some must be downloaded separately from TI's website. It is manufactured by [[Kinpo Electronics]]. |
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TI offers a special yellow version of the TI-84 Plus, inscribed with the words "School Property", for schools to loan out to students. This special design was produced in effort to combat theft.<ref>[http://education.ti.com/educationportal/sites/UK/productDetail/uk_ez_spot.html School Bus Yellow for TI-84 Plus]</ref> Owners can buy other interchangeable colored face-plates and slide-cases online. A kickstand-style slide case and other accessories are also available. Although graphing calculators have been called inexpensive in education reform research,<ref>[http://www.math.ohio-state.edu/~waitsb/papers/intensivecalcreform.pdf Graphing Calculator Intensive Calculus]</ref> the TI-84 Plus Silver Edition costs $139.00 as of 2013 on the TI online store. This calculator has been discontinued in favor of the TI-84 Plus C Silver Edition. |
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In 2011, TI launched for the French market a miniaturized version of the TI-84 Plus : [http://education.ti.com/educationportal/sites/FRANCE/productDetail/fr_TI-84Pocket.html the TI-84 Pocket.fr]. |
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In 2012, TI launched for the Asian market a miniaturized version of the TI-84 Plus Silver Edition : [http://education.ti.com/educationportal/sites/ASIA/productDetail/asia_ti84p_pocket_se.html the TI-84 Plus Pocket SE]. |
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The '''TI-84 Plus C Silver Edition''' was first publicly referenced in October 2012 in a tweet from TI.<ref>https://twitter.com/seemathrun/status/256867680974422017</ref><ref>{{cite web|url=http://tiplanet.org/forum/viewtopic.php?t=10724&lang=en| title=TI-Planet : L'histoire de la découverte de la TI-84+ C Silver Edition... | publisher=TI-Planet| accessdate=10 October 2012}}</ref> Even though this tweet had gone unnoticed, in November 2012, it was discovered<ref>{{cite web|url=http://www.cemetech.net/news.php?id=539| title=Cemetech - News - TI-84 Plus C Color-Screen Calculator Discovered | publisher=Cemetech| accessdate=8 November 2012}}</ref> through a leak from a pilot class that TI was developing a color-screen TI-84 Plus, tentatively called the TI-84 Plus C Silver Edition. It has a high-resolution 320x240-pixel color screen, a modified version of the 2.55MP operating system, a rechargeable battery and keystroke compatibility with existing math and programming tools. It has the standard 2.5mm I/O linkport and a mini-USB port. More details about the calculator's math and programming features were published when TI began distributing review models in February 2013,<ref>{{cite web|url=http://www.cemetech.net/news.php?id=567| title=Hands-On with the TI-84 Plus C Silver Edition: Full Review - Cemetech - News | publisher=Cemetech| accessdate=21 February 2013}}</ref> and even more when the calculator was released in 2013. |
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The '''TI-84 Plus CE''' was publicly previewed by TI Education in January 2015,<ref>{{cite web|url=http://education.ti.com/en/us/promotions/84ce-preview-page/overview| title=TI-84 Plus CE Graphing Calculator by Texas Instruments | publisher=TI Education| accessdate=13 January 2015}}</ref> and released Spring 2015. The calculator retains the 320x240-pixel color screen, rechargeable battery, and key layout of the TI-84 Plus C Silver Edition, while removing the 2.5mm I/O ("DBUS") linkport and moving the USB port and charging LED to the right side of the handheld. The calculator's OS 5.x is incompatible with the TI-84 Plus C Silver Edition's hardware. The calculator has 154KB of user-accessible RAM and 3.0MB of Archive memory. It uses the eZ80 processor from Zilog, making all Z80 assembly programs from previous 84 Plus series calculators incompatible. The CE comes in multiple colors, Classic (black), Silver Linings, Radical Red, True Blue, Denim (navy blue), Lightning (light blue), Plum Pi (purple), Positively Pink (as of March 2015). Like the rest of the 84 Plus series, it is allowed on most standardized tests.<ref>{{cite web|url=https://www.cemetech.net/tools/ti84pce| title=Get Started with the TI-84 Plus CE |
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| publisher=Cemetech| accessdate=13 April 2016}}</ref> |
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==Software== |
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There are three different types of [[Computer program|program]]s which can be downloaded or programmed into the calculators: [[TI-BASIC]], Z80 [[assembly language]] (or for the Plus CE, eZ80), and Flash applications (also written in Z80 assembly). In addition, there are programs available that are able to compile or interpret other programming languages. 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). |
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The TI-84 Plus Series is exactly like its predecessor in that it can be used on the [[SAT]] and [[ACT (test)|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.<ref>{{cite web|title=TI-84 Plus Silver Edition|url=http://education.ti.com/educationportal/sites/US/productDetail/us_ti84pse.html|publisher=Texas Instruments|accessdate=1 April 2012}}</ref> |
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When [[Operating system|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.<ref>{{cite web|title=OS 2.30 Distinguishes Asymptotes|url=http://calcg.org/cgi-bin/forum.cgi?t=7896|accessdate=1 April 2012}}</ref> |
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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.<ref>{{cite web|title=Press-to-Test for TI-84 Plus & TI-84 Plus Silver Edition|url=http://education.ti.com/sites/US/downloads/pdf/press_to_test_ti84p.pdf|publisher=Texas Instruments|accessdate=1 April 2012}}</ref> |
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As of OS version 2.53MP which was released in February 2010, support was added for [[prettyprint]]ed expressions. However, some programs stopped working correctly in this OS version, or were running slower.<ref>[http://www.ticalc.org/archives/news/articles/14/145/145828.html TI-OS 2.53 Released for TI-84+ Family - ticalc.org]</ref> The current OS version is 2.55MP which was released in January 2011.<ref>[http://education.ti.com/educationportal/sites/US/productDetail/us_os_84plus.html?subid=1&topid=60 Release Notes for TI-84 PLUS OS Version 2.55MP]</ref> |
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In July 2009, a [[community-made patch]] now allows 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|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 (2.53MP 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.<ref>{{cite web |url=http://tiplanet.org/forum/viewtopic.php?f=41&t=7860 |language=French |title=Flashy, le programmateur de Boot Code TI-83+/84 est sorti! |deadurl=no |accessdate=7 February 2013}}</ref> |
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==Technical specifications== |
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*'''[[Central processing unit|CPU]]:''' [[Zilog Z80]] 15 MHz, with 6 MHz compatibility mode. |
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*'''[[Flash ROM]]''' |
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**Plus Edition: 480 [[Kilobyte|KB]] user accessible of 1 MB |
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**Silver Edition: 1.5 [[Megabyte|MB]] user accessible of 2 MB |
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**Third-party software permits usage of [[FAT16]]-formatted USB drives |
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*'''[[Random-access memory|RAM]]:''' 24 KB [[Random-access memory|RAM]] user accessible of 128 KB (48 KB on newer models) |
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*'''[[Electronic visual display|Display]]''' |
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**Text: 16×8 characters (normal font) |
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**Graphics: 96 (0-95) ×64 (0-63) [[pixel]]s, monochrome (software grayscale can be used) [[Liquid Crystal Display|LCD]] |
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*'''[[I/O]]''' |
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**Link port, 9.6 [[kbit/s]] |
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**50 button built-in keypad |
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*'''[[USB]]''' |
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*'''[[Electrical power|Power]]''' |
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**4 [[AAA battery|AAA batteries]] plus 1 [[LR44 battery|SR44SW]] or 303 [[silver oxide battery]] for [[Backup battery|backup]] |
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*'''Integrated [[programming language]]s:''' [[TI-BASIC]] and [[machine code]]. [[Assembly language|Assembly]] requires a [[computer]] with a [[Zilog Z80|Z80]] assembler or an on-calc assembler. |
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==Programming== |
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{{main|TI-83 series#Programming}} |
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The TI-84 Plus is based heavily on its predecessor, the [[TI-83 series|TI-83 Plus]]. As with all other calculators in the series, the TI-84 Plus supports native Z80 assembly as well as TI's interpreted, [[BASIC]]-like language for calculators, unofficially dubbed [[TI-BASIC]]. [[Programming Language|Programming]] for the TI-84 Plus is nearly identical to programming for the [[TI-83 series|TI-83 Plus]], with a few new functions in both TI-BASIC and the calculator's assembly support that do not exist on earlier models and OS versions. Several attempts have been made at creating a C to Zilog Z80 assembly assemblers, such as [[Small Device C Compiler|SDCC]].<ref>http://www.cemetech.net/forum/viewtopic.php?t=7087</ref> |
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The TI-84 Plus calculators' dialect of TI-BASIC is the same as that of the TI-83 Plus series, but with a few more commands including ones for date and time. |
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==See also== |
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* [[Texas Instruments]] |
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* [[Comparison of Texas Instruments Graphing Calculators]] |
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* [[Omnimaga]] |
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* [[Cemetech]] |
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* [[TI-Basic]] |
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==References== |
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{{Reflist}} |
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==External links== |
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{{commons|TI-84 Plus}} |
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*[http://education.ti.com/ TI Education Portal] |
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*[http://www.ticalc.org/ ticalc.org] The flagship hobbyist program- and game-hosting archives |
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*[[WikiTI:WikiTI Home|WikiTI]] is a [[wiki]] documenting the hardware and operation system of the [[TI-83|TI-83 Series]] and [[TI-84|TI-84 Series]] of calculators. |
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*[http://detachedsolutions.com/main/ Detached Solutions] is a website that makes TI Flash applications |
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*[http://cemetech.net/ Cemetech] makes TI programs, has a community, and hosts an online IDE and emulator. |
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*[http://omnimaga.org/ Omnimaga] community dedicated to TI and Casio calculator and PC game programming and music creation of any kind. |
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{{TI-calc}} |
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{{Use dmy dates|date=November 2010}} |
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{{DEFAULTSORT:Ti-84 Plus Series}} |
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[[Category:Graphing calculators]] |
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[[Category:Texas Instruments calculators|TI-84]] |
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[[Category:Programmable calculators]] |
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[[Category:Products introduced in 2004]] |
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[[Category:Z80]] |
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