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TI-99/4A Computers

Discussion for TI-99/4A Computers

Subforums

  1. Tomy Tutor, CC40, 99/2, 99/8, Cortex, 990 mini

    Subforum for standalone non-4A systems with a 16 bit CPU belonging to the TMS99xxx processor family.

    2.6k
    posts

  2. TI-99/4A Development

    Software and hardware development for the TI-99/4A Computer.

    93.5k
    posts

6,174 topics in this forum

  1. FinalGrom 99 Case (US)

    By Tempest,
    • 5 replies
    • 443 views

  2. Seeking DataBiotics PAL chip for Super Space II

    By Bill R Sullivan,
    • 1 reply
    • 287 views

  3. TI-99/4A - Important Info ! Please do not confuse !

    By Schmitzi,   
    • 4 replies
    • 396 views

  4. TI-99/4A Related - PICTURE(s) OF THE DAY 1 2

    By Omega-TI,
    • 32 replies
    • 1.5k views

  5. HEX Editor for files?

    By Willie1914,
    • 11 replies
    • 667 views

  6. Geneve Software? What will people run once they repair those boards? 1 2 3 4

    By jedimatt42,   
    • 93 replies
    • 4.4k views

  7. Mouster USB to DB9 adapter

    By retroclouds,   
    • 2 replies
    • 627 views

  8. does the 32k sidecar ram expansion for the ti99 add to the 16k ram already on board the computer?

    By xxx,
    • 4 replies
    • 1.3k views

  9. VAST: Sparky’s Late Again! 1 2

    By Airshack,
    • 27 replies
    • 1.5k views

  10. nanoPEB Power supply

    By ulikh,
    • 12 replies
    • 747 views

  11. Woo hoo ... I got a Geneve! Now What? 1 2 3

    By coolio,
    • 67 replies
    • 3.5k views

  12. Geneve to VGA Monitor

    By dhe,
    • 3 replies
    • 211 views

  13. The TI99/4A created in 1978 does well!

    By RXB,
    • 14 replies
    • 977 views

  14. BlueWizard LPC-file

    By Nick99,
    • 15 replies
    • 1.1k views

  15. Lunar Mission 2 1 2 3

    By Retrospect,
    • 58 replies
    • 3.5k views

  16. search Schematic Of Power suplly AC9900/N

    By humeur,
    • 2 replies
    • 278 views

  17. Hi-Tek 373-70229A Keyboard Disassembly 1 2

    By Nelno,
    • 28 replies
    • 2.3k views

  18. Ti 99 Retropie

    By Noah98,
    • 2 replies
    • 467 views

  19. FinalGROM problems

    By Lumpy,
    • 10 replies
    • 928 views

  20. Infocom: the Master's Collection

    By Torrax,
    • 5 replies
    • 691 views

  21. The Impractical but Indisputable Rise of Retrocomputing

    By senior_falcon,
    • 1 reply
    • 357 views

  22. Manual for MYART?

    By Shift838,
    • 11 replies
    • 622 views

  23. Connecting the 4A to the Epson MX-80

    By korn0051,
    • 14 replies
    • 926 views

  24. Nanopeb

    By yves31,
    • 5 replies
    • 600 views

  25. Myarc DDCC-1 jumpers and switches 1 2

    By OLD CS1,   
    • 46 replies
    • 2.2k views

  26. What was the best assembly code you've ever seen?

    By FALCOR4,   
    • 23 replies
    • 1.2k views

  27. Got my TI-99/4a - what to do next?

    By Calab,   
    • 12 replies
    • 720 views

  28. New User - What about N-PAL modulators?

    By zxMarce,
    • 4 replies
    • 652 views

  29. Time Pilot for the TI-99

    By hloberg,
    • 3 replies
    • 456 views

  30. January 2021 CTIUG Meeting

    By Chicago TI-99/4A Users Group,   
    • 0 replies
    • 222 views

  31. Black screen and the screech of death...

    By jschaap26,
    • 4 replies
    • 389 views

  32. Ooeygui and the HSGPL Card

    By atrax27407,   
    • 4 replies
    • 385 views

  33. Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)? 1 2

    By wietze,
    • 31 replies
    • 1.3k views

  34. DEFAULT DRIVE CHANGE - ULTRACC

    By sparkdrummer,
    • 1 reply
    • 408 views

  35. DARE to make a 2021 forecast.

    By GDMike,
    • 7 replies
    • 500 views

  36. Online Virtual Gathering for TI users

    By nemike,
    • 4 replies
    • 349 views

  37. Robots Of Death 1 2

    By Retrospect,
    • 31 replies
    • 1.5k views

  38. DataBiotics game manuals 1 2

    By Redb3ard,
    • 49 replies
    • 3.1k views

  39. best way to test vdp's

    By arcadeshopper,
    • 7 replies
    • 770 views

  40. I accept defeat! 1 2

    By Omega-TI,
    • 31 replies
    • 2.1k views

  41. Ever wonder what the keyboard was really doing?

    By FALCOR4,   
    • 11 replies
    • 1.1k views

  42. Problems with MAME and FORTH rpks

    By atrax27407,   
    • 1 reply
    • 262 views

  43. What do you make of this screen garbage?

    By pixelpedant,
    • 4 replies
    • 308 views

  44. Best of #PimpMyTI 2020

    By Keith99er,
    • 0 replies
    • 209 views

  45. DARE to make a 2021 forecast.

    By GDMike,
    • 0 replies
    • 203 views

  46. Trade Atari Books for TI Books?

    By ballyalley,   
    • 18 replies
    • 821 views

  47. This program is 363 days out of date, but hey, it's fun!

    By Omega-TI,
    • 1 reply
    • 265 views

  48. Sidecar/PE Box address conflicts?

    By KG7PFS,
    • 6 replies
    • 486 views

  49. Video RAM on /4 (1979) is the same as /4A ? 1 2

    By globeron,
    • 25 replies
    • 1.1k views

  50. Choplifter! 1 2

    By Omega-TI,
    • 35 replies
    • 2k views
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