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TI(ny)-99/4A Computer


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#201 fabrice montupet OFFLINE  

fabrice montupet

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Posted Sun Feb 17, 2019 11:40 AM

HDMI out? SID support. WiFi tipi and USB?

This computer only uses year 80 technologies, based on corrected TI-99/4A schematics, integrating features that were optionnals or proposed by third-party companies for the 99/4A in year 80-90.  it's my initial will, my pleasure.

So here, no USB, no WIFI, no ARM, no FPGA, no HDMI or any other modern technogies. That said,  I made this computer to react as the real 99/4A, so I suppose they should work on it too.

 

 

One question Fabrice: Is the keyboard going to be QWERTY like the original US version or will you have different geographic variants?

Only my prototype extended keyboard is AZERTY. The final extended keyboard is QWERTY to respect the spirit of the original computer :)



#202 fabrice montupet OFFLINE  

fabrice montupet

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Posted Sun Feb 17, 2019 11:47 AM

Wow impressive! Do not want to sidetrack, but what would it take to make a tomy tutor version of the keyboard?

Thank you :)

I have never studied the keypress decoding operations on the Tomy Tutor (alas, never found the Tutor schematics) but, as this computer doesn't use the TMS9901, I can say that my extended keyboard will not work with the Tutor.


Edited by fabrice montupet, Sun Feb 17, 2019 2:59 PM.


#203 HOME AUTOMATION OFFLINE  

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Posted Sun Feb 17, 2019 3:40 PM

"this computer doesn't use the TMS9901"...

 

How can one call a system TI-99/4a compatible(just kidding, sort of) w/o a good ol' 9901... :twisted:

...If you're not going to install the 9901, perhaps you should remove it from the parts list ...to save on production costs! ;-) :D
 



#204 Stuart OFFLINE  

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Posted Sun Feb 17, 2019 5:33 PM

"this computer doesn't use the TMS9901"...

 

How can one call a system TI-99/4a compatible(just kidding, sort of) w/o a good ol' 9901... :twisted:

...If you're not going to install the 9901, perhaps you should remove it from the parts list ...to save on production costs! ;-) :D
 

 

He means the Tomy Tutor doesn't use the 9901 ...   ;-)



#205 HOME AUTOMATION OFFLINE  

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Posted Sun Feb 17, 2019 5:41 PM

Doi! :dunce:

 

I've gone and done it again...

...spoke too soon... :roll:

 

      Thanx. :lol:



#206 fabrice montupet OFFLINE  

fabrice montupet

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Posted Sun Feb 17, 2019 5:43 PM

;)



#207 HOME AUTOMATION OFFLINE  

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Posted Sun Feb 17, 2019 5:50 PM

Apparently your English is better than my french today. :) 



#208 AwkwardPotato OFFLINE  

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Posted Sun Feb 17, 2019 7:57 PM

Sorry if this was answered earlier, but when this becomes available, will it be possible to purchase just the assembled motherboard by itself? BTW, this project looks absolutely amazing.

 

Thanks in advance!



#209 fabrice montupet OFFLINE  

fabrice montupet

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Posted Mon Feb 18, 2019 5:25 AM

Thank you for the compliment.

It has been asked several times. And as I said before, only assembled motherboard and keyboard will be available.



#210 HOME AUTOMATION OFFLINE  

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Posted Mon Feb 18, 2019 8:40 AM

It has been difficult... to find a way to indicate my emotional relationship to the direction your TI project has followed. Perhaps something somewhat akin to jealousy. I believe I have some idea just how much of themselves one can put into their efforts. After due considerations and having reviewed this entire topic, your work has earned my highest ranking... "TOPS".






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