Retrieved 4 February 2015. ↑ "Getting Started with the TI-99/4A". 1983. ↑ Getting Started with the TI-99/4A, 1983 ↑ "TI‐99/4A user‐dismantled PEB", 99er 1 2 3 Rhines, Walden C. (2017-06-22). "The Texas Instruments 99/4: World's First 16-Bit Home Computer".