Il Texas Instruments TI-99/4A è un home computer prodotto tra il 1981 e il 1983. L’aspetto interessante del retro computer TI99/4A è la CPU: già lavora a 16 bit. Gli home computer standard prodotti in quel periodo, come il Commodore 64, il Commodore 128, il C16, lavorano, invece, a 8 bit.
Ho acquistato questo computer, insieme a parecchi accessori, in versione americana a 110V, boxato. Inoltre, il colore Texas Instruments TI-99/4A non è il classico argento: è beige.
Insieme al computer, ci sono parecchi accessori:
- Manuali
- Cartucce
- Joystick
- Lettore di cassette
- Sintetizzatore vocale
Il computer fa parte di un bel lotto che ho acquistato nell’estate 2021. Ecco il video del lotto acquistato:
Caratteristiche tecniche del computer vintage Texas Instruments TI-99/4A
CPU: TI TMS9900, 3.0 MHz, 16-bit
ROM: 26KB
RAM: 16KB (espandibile)
Video: TI TMS9918A VDP, 32 sprite monocromatici, 16 colori, 40×24 caratteri, 256×192 pixel
Audio: TI TMS9919, successivamente SN94624
Tastiera: QWERTY, 48 tasti
Software incluso in ROM: TI BASIC
Porte di espansione:
- 1 Expansion port
- 1 Audio/Video
- 1 Porta per unità nastro
- 1 Porta Joystick (per 2 Joystick)
Data di ingresso in collezione: 25/08/2021
IT 
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