TI-99/4A

Home Computer

You are about to be introduced to the exciting new world of the personal computer. Until just a few years ago, the size, price, and complexity of computers put them beyond the reach of the individual purchaser. Today, Texas Instruments Personal Computers bring you remarkable computing power in affordable, compact units that can be easily set up in your home, office, or school.


Overview

Specifications
Manufacturer Texas Instruments
Type PC
CPU TMS9900
GPU TMS9918A
RAM 256 bytes scratchpad
VRAM 16KB
Resolution modes: graphics (32 cols x 24 lines), multicolor (64 cols x 48 lines), text (40 cols x 24 lines), bitmap (256x192px)
Palette 16 colors
Graphics up to 32 8x8-pixel sprites (in all but text mode); sprites may be 'magnified' (16x16), 'double-size' (16x16, but built from four consecutive patterns in memory), or 'double-size magnified' (32x32 and built from four consecutive patterns); 4 sprites per scanline
Sound 3 square wave channels, 1 noise channel
Input QWERTY keyboard, optional joysticks
Media cartridges, cassettes, floppy disks
Peripherals

TI Solid State Speech Synthesizer
TI Memory Expansion
Peripheral Expansion Box

Where to Start

TI-99/4A Development Resources thread on Atari Age.

Programming Resources

Documentation