The Texas Instruments TI-99/4A was an early home computer, released in June 1981, originally at a price of US$525. It was an enhanced version of the less successful TI-99/4 model. The TI-99/4A added an additional graphics mode, "lowercase" characters consisting of smallcapitals, and a full-travel keyboard. Its predecessor, the TI-99/4, featured a calculator-style chiclet keyboard and a character set that lacked lowercase text.
First domestic computer with a 16-bit
The TI-99/4 series holds the distinction of being the first 16-bit personal computer. The TI-99/4A had a 16-bit TMS9900 CPU running at 3.0 MHz. The TMS9900 was based on TI's range of TI-990 mini computers.Back link.