What Does FireWire Mean?
FireWire is a high-speed real-time interface for serial bus and isochronous/synchronous data transfer between enabled devices. Known for its high-performance, FireWire is used with digital audio/video, camcorders, home entertainment applications, central processing units (CPU) and personal computers (PC) and offers sustained transfer rates of over 3200 Mbits/s.
Techopedia Explains FireWire
FireWire is used for audio-video (A/V) communication and built into most Apple operating systems. It is available in wireless, fiber optic, and coaxial isochronous protocol versions.