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Top :: Browse :: Texas Instruments :: TI-99/4A

Texas InstrumentsTI-99/4A

[Image: ]
Here's what the plastic case style looks like. I always thought the silver and black version was a bit more elegant.
337x198 JPEG file (5.49 KiB). Contributed by alexios (more pictures like this). Unrated (0 votes).
Source: unknown
Entry quality: 1 | Rate this entry: Rated 1.00 (1 vote). | 14781 hits | Admin: alexios
No known owners (I still own one | I used to own one). I have seen one.
Search Google or Ebay United States for Texas Instruments TI-99/4A (more links, auctions & searches)
Other series members
TI-99/2, TI-99/4, TI-99/4A, TI-99/8.
Quick View
Units Produced 2,500,000
Pricing 29,000.00 GRD (Greece, 1985)
Emphasis Education, Gaming, Programming
Timeline Released: 1981
CPU type TMS-9900
CPU word length 16 bits
CPU clock rate 3.3 MHz
ROM Size 26 KiB
RAM Size 16.3 KiB
Maximum RAM Size 48 KiB
Keyboard Non-standard QWERTY typewriter keyboard
Number of keys 48
Graphics chip TMS-9918A
Graphics modes 256x192x16, 64x48x16
Text modes 32x24x16, 40x24x2
Total number of colours 16
Sound chip TMS-9919
Sound channels 3
White noise channels 1
Octave range 8
Volume/DAC resolution 16
Sound output Mono
Cassette tape speed 450 bps
I/O Ports 2x Joystick, 2x Tape recorder, Cartridge, Composite video, Expansion

More technical info...


Thanks go to the following people for contributing information to this entry.