Apple Power Macintosh 8200 - Manual (Page 43)

43 Connecting Additional Equipment
The computer’s sound ports accept these 3.5 mm connectors:
The smaller connector (a “stereo miniplug”) is found most often on stereo
equipment. The slightly longer connector is found on the Apple PlainTalk
Microphone and other voice quality microphones. If your equipment has a
different type of connector, you can purchase an adapter at an electronics
supply store.
Connecting and positioning a microphone
With appropriate software, you can use the Apple PlainTalk Microphone that
comes with some Macintosh computers (or a compatible line-level
microphone) to give spoken commands to your Macintosh and to record your
voice or other sounds.
Do not use the round omnidirectional microphone supplied with some other
Macintosh models.
Apple PlainTalk Microphone
Extended miniplug Stereo miniplug