TI-84 Plus
TI-84 Plus | |
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TI-84 Plus graphing calculator |
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Manufacturer | Texas Instruments |
Sales start | 2004 |
Technical specifications | |
processor | Zilog Z80 |
random access memory | RAM 24 KiB, Flash-ROM 480 KiB |
screen | monochrome LCD , 64 × 96 pixels |
Current operating system | proprietary , current version 2.55 |
Connectivity | |
connections |
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battery pack | |
Type | 4 AAA batteries, 1 SR44 button cell |
particularities | |
programmable in TI-Basic and Z80 assembler |
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Website | |
education.ti.com/deutschland |
The TI-84 Plus is a graphical calculator from the American semiconductor and electronics company Texas Instruments .
History and characteristics
The first model was launched in 2004. According to standard Texas Instruments naming conventions, “plus” indicates that Flash ROM memory is built in. The TI-84 Plus is the successor to the TI-83 Plus (1999) and is compatible with every TI-83-Plus program, but has almost three times the storage capacity (in the "Silver Edition" variant, even more than nine times as much) .
The TI-84 Plus and the TI-84 Plus Silver Edition both have a " Zilog Z80 " processor clocked at 15 MHz .
The following table shows the technical properties of the Ti-84 compared to TI-83 .
TI-83 | TI-83 Plus | TI-83 Plus Silver Edition |
TI-84 Plus |
TI-84 Plus Silver Edition |
TI-84 Plus C Silver Edition |
TI-84 Plus CE / TI-84 Plus CE-T |
|
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processor | Zilog Z80 | Zilog eZ80 | |||||
Clock frequency | 6 MHz | 15 MHz | 48 MHz | ||||
RAM , total | 32 KiB | 128 KiB | 48/128 KiB a | ? | |||
RAM, available b | 27 KiB | 24 KiB | 21 KiB | 154 KiB | |||
Flash ROM , total | 512 KiB | 2048 KiB | 1024 KiB | 2048 KiB | 4096 KiB | ? | |
Flash ROM, available b | - | 160 KiB | 1500 KiB | 480 KiB | 1500 KiB | 3500 KiB | 3000 KiB |
Screen type | monochrome | 65,536 colors | |||||
Screen resolution | 96 × 64 pixels | 320 × 240 pixels | |||||
Power supply | 4 × micro batteries | Li-ion battery | |||||
1 × CR1620 or CR2020 | 1 × SR44 button cell | - | |||||
Initial release | 1996 | 1999 | 2001 | 2004 | 2005 | 2013 | 2016 |
The TI-84-Plus can be connected to a computer or another TI-84 Plus / Plus Silver Edition via mini-USB , the 2.5 mm jack socket is available for connection to a TI-83 (Plus) or TI-82 (Stats). The so-called teacher version of the TI-84 Plus Silver Edition has a wide plug at the top for connecting a transparent liquid crystal overlay called a ViewScreen for projection of the screen content using an overhead projector . The current version of the TI-84 Plus operating system is 2.55MP.
Program
The TI-84 can be programmed using both TI-Basic and Z80 assembler . A possible but difficult variant of the assembly is that a TI-Basic program is created, which is structured as follows:
: AsmPrgm
: "Programmcode in Hexadezimal"
The programmer must have the entire instruction set in stock or know it by heart. There is a danger that an incorrect command can render the TI unusable (overwriting of memory) and also that an incorrect command immediately resets the TI-84 Plus to its factory settings, whereby the program is lost. With AsmComp()
assembler programs can be compiled and Asm()
executed with.
Further developments
- TI-84 Plus Silver Edition offers more memory for user data (1.5 MiB ).
- An advanced software emulation for Windows and Mac is SmartView for TI-84 Plus.
- TI-Nspire with ClickPad can emulate a TI-84 Plus Silver Edition using an additional exchangeable keyboard .
- TI-84 Plus C Silver Edition as a variant with 65,000-color display and background lighting as well as a proprietary lithium-polymer battery .
Web links
- Texas Instruments - Official website
- ticalc.org Web archive with numerous files for all TI calculators
- education.ti.com Downloads for TI calculators
Individual evidence
- ↑ Technical data of the TI-84 Plus ticalc.org
- ↑ Details on the TI84 Plus C Silver Edition on the manufacturer's website
- ↑ Download the new operating system from education.ti.com
- ↑ Test on Gizmodo