During the Mac's early history Apple generally refused to adopt prevailing industry standards for hardware, instead creating their own.[298] This trend was largely reversed in the late 1990s, beginning with Apple's adoption of the PCI bus in the 7500/8500/9500 Power Macs. Apple has since adopted (and often co-developed) industry standards such as USB, AGP, HyperTransport, Wi-Fi, and others in its products. FireWire is an Apple-originated standard that was widely adopted across the industry after it was standardized as IEEE 1394.[299]