TI-83
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The TI-83 is a graphing calculator that was developed by Texas Instruments (TI). The first model was launched in 1996, its successor, the TI-83 Plus, three years later. In 2004, the TI-84 Plus appeared , which has increased storage capacity.
properties
The table below shows the technical properties of the Ti-83 compared to the TI-84 .
| TI-83 | TI-83 Plus |
TI-83 Plus Silver Edition |
TI-84 Plus | TI-84 Plus Silver Edition |
TI-84 Plus C Silver Edition |
|
|---|---|---|---|---|---|---|
| processor | Zilog Z80 | |||||
| Clock frequency | 6 MHz | 15 MHz | ||||
| RAM , total | 32 kB | 128 kB | 48/128 kB a | |||
| RAM, available b | 27 kB | 24 kB | 21 kB | |||
| Flash ROM , total | 512 kB | 2048 kB | 1024 kB | 2048 kB | 4096 kB | |
| Flash ROM, available b | - | 160 kB | 1500 kB | 480 kB | 1500 kB | 3500 kB |
| Screen type | monochrome | 65,536 colors | ||||
| Screen resolution | 96 × 64 pixels | 320 × 240 pixels | ||||
| Power supply | 4 × AA batteries | Li-ion battery | ||||
| 1 × CR1620 or CR2020 | - | |||||
| Initial release | 1996 | 1999 | 2001 | 2004 | 2005 | 2013 |
Function overview TI-83 Plus
The calculator has a high-contrast, eight-line, divisible display with 16 characters each. It supports various programming languages ( TI-Basic , C and Z80 - assembler ) and allows input, storage and display of up to 10 right-angled, 6 parametric and 6 polar functions as well as 3 sequences, as well
- Interactive graphical analysis with derivatives and integrals.
- Advanced statistical functions, including hypothesis tests and calculation of confidence intervals. Probability distributions.
- Custom list names with up to 999 items.
- Store and analyze up to 10 matrices, the size of which is only limited by the available memory.
- Equation solver.
- Dimensions: 82 × 183.9 × 21 mm
- numerical differentiator using the Symbolic program
- Current version of the operating system: 1.19
The TI-83 Plus Silver Edition also has more storage capacity (which is also far greater than that of the TI-84 Plus ).
Broken signature key
The TI-83 Plus operating system is signed with an RSA key. Since the key is only 512 bits long, members of the United-TI forum managed to break the key with the help of ordinary PCs in order to install modified versions of the operating system. It is considered the first case in which a practically relevant 512 bit RSA key was broken. Texas Instruments tried to prevent the key from being spread with the help of the Digital Millennium Copyright Act , but in protest, the key was mirrored in many places on the Internet, including by Wikileaks .
Web links
- Texas Instruments - Official website
- [en] ticalc.org - TI-83 (Plus) Articles and Software
- [en] z88dk.sourceforge.net - C compiler for Z80 processors
Individual evidence
- ↑ Details on the TI84 Plus C Silver Edition on the manufacturer's website
- ↑ [1]
- ↑ http://www.ticalc.org/archives/news/articles/14/145/145154.html
- ↑ Archived copy ( memento of the original from June 24, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
