TI-99/4A

E533732

The TI-99/4A is a home computer released by Texas Instruments in the early 1980s, notable for being one of the first 16-bit consumer machines and competing with systems like the Atari 8-bit and Commodore 64.

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Observed surface forms (1)

Surface form Occurrences
TI-99/4A home computer 1

Statements (52)

Predicate Object
instanceOf home computer
basicInterpreter TI BASIC in ROM
colorPaletteSize 16 colors
competitor Apple II series NERFINISHED
Atari 8-bit family NERFINISHED
Commodore 64 NERFINISHED
cpu TMS9900 NERFINISHED
cpuArchitecture 16-bit
developer Texas Instruments NERFINISHED
discontinuationDate 1983
enhancedBasic Extended BASIC NERFINISHED
expansionOptions 32 KB memory expansion
RS-232 interface
disk controller
speech synthesizer
expansionSystem Peripheral Expansion Box NERFINISHED
family TI-99 series NERFINISHED
graphicsChip TMS9918A NERFINISHED
inputDevice joysticks
keyboard
introductoryPriceUSD 525
joystickPortCount 2
keyboardType full-travel keyboard
manufacturer Texas Instruments NERFINISHED
market home computer market
marketingChannel aggressively discounted in US retail chains
maxResolution 256×192 pixels
notableFeature cartridge-based software distribution
one of the first 16-bit consumer home computers
speech synthesis add-on
os TI BASIC environment NERFINISHED
cartridge-based software
powerSupply external power supply brick
predecessor TI-99/4 NERFINISHED
primaryColorVariant beige
silver and black
primaryLanguage TI BASIC NERFINISHED
ram 16 KB main RAM
region Australia NERFINISHED
Europe
North America
releaseDate 1981
rom 26 KB ROM
soundChannels 1 noise channel
3 tone channels
soundChip SN76489A NERFINISHED
storage cartridge slot
cassette interface (via cable)
floppy disk drive (via Peripheral Expansion Box)
videoOutput RF modulator
composite video (via expansion)
vram 16 KB video RAM

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Texas Instruments SN76489 usedIn TI-99/4A
this entity surface form: TI-99/4A home computer