I can remember one movie (not the title though) where an audio ransom tape was sent to the police, making various demands. The hostage taker had typed his demands into a computer and got it to 'say' the text, and recorded that audio output to tape. Going by memory, this is the ensuing conversation between the police lab technician and the detective in charge of the case:
Detective: "Is this some kind of voice scrambler?"
Tech: "It's definitely computer-generated, it's not the guy's voice."
Detective: "Can you trace the computer? What computer is this?"
Tech: "Could be an Apple or an Amiga, there's no way to trace it."
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That's the only time I remember the Amiga being mentioned by name. It bugs me that I can't remember the film name or any of the actors.