TI-83 series
From Wikipedia, the free encyclopedia
The TI-83 series of graphing calculators is manufactured by Texas Instruments. The original TI-83 is itself an upgraded version of the TI-82. Released in 1996, it is one of the most used graphing calculators for students. In addition to the functions present on normal scientific calculators, the TI-83 includes many features, including function graphing, polar/parametric/sequence graphing modes, statistics, trigonometric, and algebraic functions. Although it does not include as many calculus functions, applications (for the TI-83 Plus -- see below) and programs can be downloaded from certain websites or written on the calculator.
TI replaced the TI-83 with the TI-83 Plus calculator in 1999, which included Flash memory, enabling the device's operating system to be updated if needed, or for large new Flash Applications to be stored, accessible through a new Apps key. The Flash memory can also be used to store user programs and data. In 2001 the TI-83 Plus Silver Edition was released, which featured approximately nine times the available Flash memory, and over twice the processing speed (15 MHz) of a standard TI-83 Plus, all in a translucent grey case.
The TI-83 was the first calculator in the TI series to have built in assembly language support. The TI-92, TI-85, and TI-82 were capable of running assembly language programs, but only after sending a specially constructed (hacked) memory backup. The support on the TI-83 could be accessed through a hidden feature of the calculator. Users would write their assembly (ASM) program on their computer, assemble it, and send it to their calculator as a program. The user would then execute the command "Send (9prgmXXX" (where XXX is the name of the program), and it would execute the program. Successors of the TI-83 replaced the Send() backdoor with a less-hidden Asm() command.
Contents |
[edit] TI-83 Plus
 |
This article may require cleanup to meet Wikipedia's quality standards. Please improve this article if you can. (October 2007) |
The TI-83 Plus is a graphing calculator made by Texas Instruments, designed in 1999 as an upgrade to the TI-83. The TI-83 Plus is one of TI's most popular calculators. It uses a ZiLOG Z80 microprocessor running at 6 MHz, a 96×64 monochrome LCD screen, and 4 AAA batteries as well as backup CR1616 or CR1620 battery. A link port is also built into the calculator in the form of a 2.5mm jack. The main improvement over the TI-83, however, is the addition of 512 KB of Flash ROM, which allows for OS upgrades and applications to be installed. Most of the Flash memory is used by the OS, with 160 KB available for user files and applications. Another development is the APPS function, which allows the user to add functionality to the calculator such as test probability and create study cards. The sample study deck covers science, math, music, language, and analogies.
Designed for use by high school students, it contains all the features of a scientific calculator as well as function, parametric, polar, and sequential graphing capabilities; an environment for financial calculations; matrix operations; on-calculator programming; and more. Symbolic manipulation (differentiation, algebra) is not built into the TI-83 Plus, but is available via a flash application from Detached Solutions. It can be programmed using a language called TI-BASIC, which is similar to the BASIC computer language. Programming may also be done in TI Assembly, made up of Z80 assembly and a collection of TI provided system calls. Assembly programs run much faster, but are more difficult to write.
There is a large and active community of third party developers; a large archive of their programs can be found at ticalc.org.
[edit] TI-83 Plus Silver Edition
The TI-83 Plus Silver Edition is a newer version of the TI-83 Plus calculator, released in 2001. Its enhancements are 1.5 MB of Flash memory, a dual-speed 6/15 MHz processor, 96 KB of additional RAM, an improved link transfer hardware, a translucent silver case, and more applications preinstalled. It also includes a USB link cable in the box. It is almost completely compatible with the TI-83 Plus; the only problems that may arise are with programs (i.e. games) that may run too quickly on the Silver Edition or with some programs which have problems with the link hardware. The key layout is the same.
In April 2004, the TI-83 Plus Silver Edition was replaced by the TI-84 Plus Silver Edition. They feature the same processor and the same amount of Flash memory, but the TI-84 Plus Silver Edition features a built in USB port, clock, and changeable faceplates.
[edit] TI-84 Plus series
The TI-84 Plus series was introduced in April 2004 as a further update to the TI-83 line. Despite the new appearance, they are not vastly superior to the TI-83 Plus series. The main improvements of the TI-84 Plus and TI-84 Plus Silver Edition are a fancier case with changeable faceplates (Silver Edition only), new built in functions, more speed and memory over the TI-83 and base TI-83 Plus, a built-in clock, and built-in USB port connectivity. The TI-84 Plus has 3 times the memory of the TI-83 Plus, and the TI-84 Plus Silver Edition has 9 times the memory of the TI-83 Plus. They both have 2.5 times the speed of the TI-83 Plus. The operating system and math functionality remain almost the same, as does the standard link port for connecting with the rest of the TI Calculator series. Because of a few extra features included in the TI-84 Plus operating system, however, the amount of user-available Flash memory has decreased slightly from the TI-83 Plus Silver Edition. Also, the processor has to update a clock as well as support a USB port, so the speed of processing is slightly reduced from the TI-83 Plus Silver Edition.
[edit] Technical specifications
- CPU
- Zilog Z80 CPU, 6 MHz (TI-83, 83+), or 15 MHz (Silver Edition), or Inventec 6S1837 (TI-83 revision A)
- ROM
- 24 KB ROM (TI-83)
- Flash ROM
- 163 KB (83+) or 2 MB (Silver Edition)
- RAM
- 32 KB RAM (128 KB on Silver Edition, however the extra 96 KB is not user accessible by default, this extra memory is used in some Applications such as Omnicalc for a RAM recovery feature and a virtual calc)
- 84 series expandable via special software to use up disk space on a USB memory drive.
- Display
- Text: 16×8 characters (normal font)
- Graphics: 96×64 pixels, monochrome
- I/O
- Link port, 9.6 kbit/s
- 50 button built-in interface
- Power
- 4 AAA batteries plus 1 CR 1616 or CR 1620 for backup
- Integrated programming languages
- TI-BASIC and machine code. Assembler and C require a computer with a Z80 cross-compiler or an on-calc assembler.
[edit] Education
Several reform mathematics high school textbooks such as the Core-Plus Mathematics Project require a calculator compatible with the TI-83 for graphing functions and performing matrix and statistical operations. However, the TI-83 is not compatible with calculators designed for college calculus courses.
[edit] See also
[edit] External links
[edit] Tech
- Features of the TI-83 Plus, and TI-83 Plus Silver Edition Texas Instruments Product Info
- TI-83 Plus Guide Book Texas Instruments Product Documentation
- Richfiles - Overclock your calculator
- WikiTI is a wiki documenting the hardware and operating system of the TI-83 Series and the TI-84 Series of calculators.
- TI-Basic Developer is the premier TI-Basic programming wiki.
- High level programs (math and engineering)
- TI-83 and 86 Disassembled
- A TI-8x series Robot
[edit] Shells
- CrunchyOS - Like Ion, but can compress programs. MOS compatible.
- Doors CS - Desktop with icons, runs most program types, GUI API and networking. MOS compatible.
- Ion - Program list, runs ASM programs.
- Mirage OS - Program list, folders, runs ASM and BASIC programs. ION compatible.
[edit] Games
- CalcG.org - Very organized and easily accessible file archive
- ticalc.org - The biggest resource of calculator files on the Internet
[edit] Programming groups and Communities
- CalcG - Fairly large archive, both ASM and BASIC users on forum
- Cemetech - Both ASM and BASIC, with archives and some web programming
- Detached Solutions - Forum and some downloads
- MaxCoderz - Smaller ASM dev site
- RevSoft - ASM and some BASIC development
- ticalc.org - Has many calculator programs and tutorials for all TI Calculators.
- TICALCS - General calculator website
- TechniCalc - Beginner oriented site and forum
- TI-FreakWare - BASIC site
- Ti-News.net - Calculator news and RSS feeds
- United TI - More BASIC than ASM development Mainly a Help forum
|
|||||||||||||||||
