PlainTalk

PlainTalk is the collective name for several speech synthesis (MacInTalk) and speech recognition technologies developed by Apple Inc.

In 1990, Apple invested a lot of work and money in speech recognition technology, hiring many researchers in the field. The result was "PlainTalk", released with the AV models in the Macintosh Quadra series from 1993. It was made a standard system component in System 7.1.2, and has since been shipped on all PowerPC and some other 68K Macintoshes.