Launch 1981
Launch 1984
CPUTexas Instruments TMS9900
GFXTexas Instruments TMS9918A
AudioTexas Instruments TMS9919

The Texas Instruments TI-99/4A is a home computer, it is a redesign of the TI-99/4 system, which was discontinued. The new “4A” has a new graphics chip and a better keyboard. About the only way to expand the original TI-99/4A was from the expansion port on the right side of the console. Memory expansion, a serial interface, a floppy drive and other peripherals can be plugged in here for added capabilities.

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