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All things Texas Instruments computing.
General TI-99 Info:
CPU: 16-bit TMS9900 @ 3 MHz 64-pin DIP
Memory 16 KB Base RAM and Expandable to 16MB
Graphics: TMS9918A S-Video out 256×192 pixels with 32 sprites
Sound TMS9919, later SN94624 - 3 voices, 2 noise - 110 Hz to 115 kHz
TI-99/4 | TI-99/4A
CPU Speed | 3 Mhz | 3 Mhz
RAM | 16 KB | 16 KB
Year | 1979 | 1981
TI-99 Programming
- TI BASIC and Extended BASIC manual - Part I
- TI BASIC and Extended BASIC manual - Part II with ASCII chart
- TI-99/4A Editor Assembler manual
Code:
- TI BASIC and TI Extended BASIC Code
- - Games [text and audio] Code
- - Utility Code
TI-99 Hardware:
- Want to make a drive or a 32k RAM expansion? Here is the pin out of the 44 pin side port for external memory and disk control.
- Creating your own game adapter!.Creating an game adapter for the Atari CX-30 Joystick, Sega Genesis game pad, ColecoVision Flashback Controller, and Atari Video Touch pad.
- Here is a Computer cassette tape drive replacement option. Using a modern computer as a WAV file server for the TI-99/4A (instead of cassette drive)
- Connecting a TI-99/4A to a HDMI or RCA S-Video TV/monitor
- Here is the Ti-99/4A cart pinout
General TI-92 and 89 Info:
CPU: 32-bit Motorola MC68000
Display: 240×128 pixels for TI-92 series
160×100 pixels for TI-89 series
Further Technical specifications
TI-92 | TI-92II | TI-89 | TI-92 Plus | Voyage 200 | TI-89 Ti
CPU speed | 10 MHz | 10 MHz | 10 MHz | 12 MHz | 12 MHz | 16 Mhz
RAM | 128 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB
Flash ROM | 1 MB | 1 MB | 2 MB | 2 MB | 4 MB | 4 MB
Year | 1995 | 1996 | 1998 | 1998 | 2002 | 2004
TI-92 and TI-89 Programming
- Modern TI-89/92 (68K series) BASIC
Downloads
- Doom for TI-92
- doom89.zip for TI-92 plus or TI Voyage 200 Doom 89 Version 2.02
- Mario for TI-92
General TI-84 Info:
CPU: ZiLOG Z80 8-bit microprocessor
Display:
TI-84 Plus | TI-84 Plus SE |
CPU speed | 15 MHz | 15 MHz |
RAM | 1 M | 2 M |
year | 2004 | 2004 |
Additionally, I have two TI-84 plus my programmable TI-84 Plus and Silver Edition Plus - both with USB interfaces. The biggest difference is the Silver Edition has twice the memory.
Yes, you can programm and use all types of applications on your TI-84 plus. Yes, you can play Doom on your TI-84 Plus also!
Here is a video on how to load applications and games to your TI-84. Yes, they can even play gameBoy games on your TI-84 plus.
https://www.youtube.com/watch?v=dSmIj94TnVo
https://www.youtube.com/watch?v=xsxinFch6Jk
The TI-84 Plus series supports three programming languages: TI-BASIC (Z80 version) , Z80 assembly, and the Axe language.
- My personal TI collection
- See how the TI-99/4A fits in the TI computer history timeline.
- See how the graphic Calculators fit in the TI history timeline.