Word Twister & Vocabuilder Chia-Chi Chao Platform(s): TS 1000 TS 1500 TS 2068 Price: $10 Vocabulary learning programs. Advertisements Update April 1988 p. 42 Tags Education, Chia-Chi Chao (company), TS 1000, TS 1500, TS 2068 People No people associated with this content.