yann64andClaude Opus 5.5
3eeabe9649
6,654 pages: 1,289 machines, 702 software, 460 companies, 64 history, 17 articles, 59 fun. 4,336 media files so far; references to files not downloaded yet are left out. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
263 lines
10 KiB
Markdown
263 lines
10 KiB
Markdown
---
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title: Texas Instruments TI 99 / 2
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- U.S.A.
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years:
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- '1983'
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cpus:
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- Texas Instruments TMS 9995
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params:
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name: TI 99 / 2
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company: /companies/texas-instruments
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company_name: Texas Instruments
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specs:
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- label: NAME
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value: TI 99 / 2
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- label: MANUFACTURER
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value: Texas Instruments
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: U.S.A.
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- label: YEAR
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value: April 1983
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- label: BUILT IN LANGUAGE
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value: Lighted TI Basic
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- label: KEYBOARD
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value: QWERTY calculator type, 48 keys
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- label: CPU
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value: Texas Instruments TMS 9995
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- label: SPEED
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value: 10.7 Mhz
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- label: CO-PROCESSOR
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value: Unknown
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- label: RAM
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value: 4 up (up to 36 kb)
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- label: ROM
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value: 32 KB
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- label: TEXT MODES
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value: 32 x 24
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- label: GRAPHIC MODES
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value: Unknown
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- label: COLORS
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value: Monochrome
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- label: SOUND
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value: No !
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- label: I/O PORTS
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value: Expansion port, Hex-Bus port, NTSC video out, tape-recorder
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- label: POWER SUPPLY
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value: External AC adaptor
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- label: PRICE
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value: $99.95 (1983)
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tabs:
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- photos
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- emulators
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- links
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- docs
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- videos
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photos:
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- title: B&W PICTURE
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subtitle: ''
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text: ''
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image: null
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emulators:
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- title: Mess emulator
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url: http://www.mess.org
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platform: MS DOS
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text: Emulates all of the TI-99 versions, including the Geneve card
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- title: PC99
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url: http://pw2.netcom.com/~mjmw/index.html
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platform: MS DOS
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text: Quality emulator for the TI 99/4A
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- title: Classic99
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url: http://www.harmlesslion.com/software/Classic99
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platform: Windows
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text: Open Source & freeware TI-99/4A emulator for Windows 9x
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- title: Win994a
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url: http://www.99er.net/win994a.shtml
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platform: Windows
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text: Win994a is a TI-99/4A simulator written by Cory Burr that installs and runs in Windows
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- title: MacV9T9 official homepage
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url: http://perso.club-internet.fr/pytheas/english/MacV9T9.html
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platform: Apple
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text: MacV9T9 is a TI99 emulator for the Macintosh
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links:
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- title: planet-99.net
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url: http://www.planet-99.net/
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text: Lots and Lots of 4A software on this site. Disks, Cartridges, Articles - the lot!
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- title: Somtimes
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url: http://sometimes.99er.net/
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text: Demo cartridges
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- title: The TI-99/4A Home Computer Page
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url: http://www.99er.net
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text: THE U.S. site to visit for TI stuff !
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- title: TI-99 4/A Webring
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url: http://e.webring.com/hub?ring=ti994a
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text: You know what it is ;-)
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- title: TI-99 Forever !
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url: http://www.ti99.com/
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text: Excellent site, full of infos
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- title: TI-99 Forever !
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url: http://www.ti99.com
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text: Excellent site by Fabrice Montupet
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- title: TI-99/4 Home Page at 99er.Net
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url: http://www.99er.net/
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text: THE us site to visit !
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- title: TI-99/4A SHRINE
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url: http://www.geocities.com/Athens/7374/ti.html
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text: Complete site full of infos
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- title: TI99-4a
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url: http://www.netten.net/~garycox/ti99idx.htm
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text: Some infos and reviews of Chicago TI Fairs
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- title: Web Wiz CAPTCHA
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url: http://www.webwizcaptcha.com
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text: Discussion about Texas Instruments computers
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docs:
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- title: USER'S REFERENCE GUIDE
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url: http://www.classiccmp.org/dunfield/ti/index.htm
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cover: null
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text: |-
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[**USER'S REFERENCE GUIDE**](http://www.classiccmp.org/dunfield/ti/index.htm)written by Texas Instruments
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compiled/archived by Dave Dunfield\
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type of document : PDF\
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source : [Daves Old Computers](http://www.classiccmp.org/dunfield/)
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- title: BEGINNER'S BASIC
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url: http://www.classiccmp.org/dunfield/ti/index.htm
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cover: null
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text: |-
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[**BEGINNER'S BASIC**](http://www.classiccmp.org/dunfield/ti/index.htm)written by Texas Instruments
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compiled/archived by Dave Dunfield\
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type of document : PDF\
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source : [Daves Old Computers](http://www.classiccmp.org/dunfield/)
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- title: BASIC REFERENCE CARD
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url: http://www.classiccmp.org/dunfield/ti/index.htm
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cover: null
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text: |-
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[**BASIC REFERENCE CARD**](http://www.classiccmp.org/dunfield/ti/index.htm)written by Texas Instruments
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compiled/archived by Dave Dunfield\
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type of document : PDF\
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source : [Daves Old Computers](http://www.classiccmp.org/dunfield/)
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- title: GETTING STARTED WITH THE TEXAS INSTRUMENTS TI99/4A
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url: http://shawweb.myzen.co.uk/stephen/book.htm
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cover: /media/museum/docs/couvs/vide.gif
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text: |-
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[**GETTING STARTED WITH THE TEXAS INSTRUMENTS TI99/4A**](http://shawweb.myzen.co.uk/stephen/book.htm)written by Stephen Shaw
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compiled/archived by Stephen Shaw\
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type of document : HTML\
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source : [Stephen's Main Web Page](http://shawweb.myzen.co.uk/stephen)
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- title: PROGRAMMING DISCOVERY IN TI BASIC STUDENT GUIDE
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url: http://www.99er.net/docs.html
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cover: null
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text: |-
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[**PROGRAMMING DISCOVERY IN TI BASIC STUDENT GUIDE**](http://www.99er.net/docs.html)written by Texas Instruments Computer Advantage Club
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compiled/archived by Rich at www.99er.net\
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type of document : Unknown\
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source : [TI-99/4A Home Computer Page](http://www.99er.net/)
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- title: TI-99/4A CONSOLE & PERIPHERAL EXPANSION SYSTEM TECHNICAL DATA
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url: http://www.99er.net/docs.html
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cover: null
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text: |-
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[**TI-99/4A CONSOLE & PERIPHERAL EXPANSION SYSTEM TECHNICAL DATA**](http://www.99er.net/docs.html)written by Texas Instruments
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type of document : PDF\
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source : [TI-99/4A Home Computer Page](http://www.99er.net/)
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- title: SPEECH SYNTHESIZER MANUAL
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url: http://www.99er.net/docs.html
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cover: null
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text: |-
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[**SPEECH SYNTHESIZER MANUAL**](http://www.99er.net/docs.html)written by Texas Instruments
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type of document : PDF\
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source : [TI-99/4A Home Computer Page](http://www.99er.net/)
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- title: DISK MEMORY SYSTEM MANUAL
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url: http://www.99er.net/docs.html
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cover: null
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text: |-
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[**DISK MEMORY SYSTEM MANUAL**](http://www.99er.net/docs.html)written by Texas Instruments
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compiled/archived by Rich at www.99er.net\
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type of document : Unknown\
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source : [TI-99/4A Home Computer Page](http://www.99er.net/)
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- title: RS232 INTERFACE CARD MANUAL
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url: http://www.99er.net/docs.html
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cover: null
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text: |-
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[**RS232 INTERFACE CARD MANUAL**](http://www.99er.net/docs.html)written by Texas Instruments
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compiled/archived by Rich at www.99er.net\
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type of document : Unknown\
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source : [TI-99/4A Home Computer Page](http://www.99er.net/)
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- title: DATA RECORDER MANUAL
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url: http://www.99er.net/docs.html
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cover: null
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text: |-
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[**DATA RECORDER MANUAL**](http://www.99er.net/docs.html)written by Texas Instruments
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compiled/archived by Rich at www.99er.net\
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type of document : PDF\
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source : [TI-99/4A Home Computer Page](http://www.99er.net/)
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videos:
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- title: TV commercial featuring Bill Cosby
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url: https://www.youtube.com/watch?v=OhsgvW9P7tI
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text: 'Length: 30 s'
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comments:
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- author: Jeremy Benisek (United States)
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date: Saturday 27th October 2018
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text: |-
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I have one of these and would like to sell it. Any one interested?
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Please contact JB@dontpanic.biz
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- author: Mark (USA)
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date: Friday 18th July 2014
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text: |-
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There''s an interesting site about TMS99xx stuff :
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http://www.avjd51.dsl.pipex.com/
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Has quite a lot of stuff on the TI TMS9900/TMS9995 hardware including a breadboard self-build computer based on the TMS9995
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Well worth a look !
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- author: John Creviston (Texas)
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date: Wednesday 19th February 2003
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text: |-
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I am in posession of a TI99/2. I am looking for an original power supply/wall transformer.\
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I do not own this machine, but am acting on behalf of the owner.\
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It might possibly be available for auction if there is enough interest. Please write for pictures for if you have questions. john creviston
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related:
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- /museum/texas-instruments-computer-99-8
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- /museum/texas-instruments-ti-99-4a
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- /museum/texas-instruments-ti-99-4a-beige
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oc_id: 267
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source:
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url: https://web.archive.org/web/20230608160518/http://www.old-computers.com/museum/computer.asp?c=267
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date: '2023-06-08'
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---
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The Texas Instruments TI 99 / 2 (in-house named "Ground Squirrel") was intended to compete in a lower price range than the TI 99/4A (i.e. in the same range that the Sinclair Spectrum). But when the price war with Commodore forced TI to slash the price of a 99/4A to that level, there was no market for the 99/2 anymore.\
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Therefore, this prototype never made it to the shelves of the computer shops.
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**Harry LittleJohn** and **Mark Jander**, the designers of the TI-99/2, explained its concept in a Byte magazine article:\
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We beleived a major portion of our market would be first-time computer buyers looking for a minimal investment in the world of computers. We kept the price low to compete directly with low-priced computers such as the Timex/Sinclair 1000.
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We felt strongly that the first-time buyer must not be intimidated by the product. The console, we decided, must be simple and the keyboard must be no more complicated than a typewriter keyboard.
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To ease the upward migration to more sophisticated computers, we decided to make our computer part of an integrated proct line basec on the 99/4A.\
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Having identified these requirements, we selected the following characteristics for the TI-99/2:\
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**1** - A computer system for less than $100 including a minimum of 2 KB of RAM and 16 KB of ROM.\
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**2** - A built-in, two-channel black-and-white RF modulator for connecting the system to a standard TV.\
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**3** - A built-in interface for a standard audio-cassette recorder to provide economical mass-storage capability.\
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**4** - A built-in Hex-bus interface to provide compatibility with the line of low-cost peripherals.\
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**5** - An operating system that would be a subset of TI_99/4A TI-BASIC. For cost reasons, the 99/2 would not use the Graphic GROM of the 99/4A and, therefore, 99/4A cartridges would not be compatible with the 99/2.\
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**6** - No sound, color, or joystick capability would be supported again because of cost constraints.\
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**7** - The full system bus structure would be available at an expansion port. This would facilitate memory-expanding Solid State Software cartridges or any other future system expansion.\
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**8** - A nonintimidating 48-key typewriter-like keyboard with only two legends per key top. Lowercase letters would not be supported.
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