The TI-99/4A Home Computer is a 'classic' computer system which was created and sold by Texas Instruments in the early 80's. Other systems generally considered to be in the TI-99 'family' include the TI-99/2, TI-99/4, TI-99/8, CC40, Geveve and the Tomy Tutor.
Sources for TI-99/4A hardware and software.