Not only Macs have Firewire ports A number of laptops and desktop computers do has Firewire port on board also, but they are not as common as USB ports.
Firewire transfer data faster, more stable, and uses lesser system resourcse than USB, but due to the $1 charge by Apple and other Firewire port developer companies, Intel dumped Firewire and go for USB 2.0, so USB 2 become the one instead of Firewire.
The New Flying MacBook Pro; Seatbelts sold Separately!