The Texas Instruments TI-99/4A (as seen in my computer collection)

I talk about vintage/classic computers in my collection: The Texas Instruments TI-99/4A. A further description can be seen here: https://www.classic-computers.org.nz/.... This video replaces an earlier copy which had very poor audio. See the View Numbers and Comments before the refresh at https://www.classic-computers.org.nz/...