A major change in the version 3.0 is in the voltage difference that distinguishes the ones and zeros being transferred across the PCI subsystem's electrical connections. The PCI 1.0, introduced in 1992, used 5-volt signaling technology, and version 2.0 added support for 3.3-volt technology that permits the PCI subsystem to run at faster speeds. Version 3.0 requires the 3.3-volt connections.
PCI subsystem gets third major update
The new version supports several variants of conventional PCI connections.
Stephen Shankland Former Principal Writer
Stephen Shankland worked at CNET from 1998 to 2024 and wrote about processors, digital photography, AI, quantum computing, computer science, materials science, supercomputers, drones, browsers, 3D printing, USB, and new computing technology in general. He has a soft spot in his heart for standards groups and I/O interfaces. His first big scoop was about radioactive cat poop.
Expertise Processors | Semiconductors | Web browsers | Quantum computing | Supercomputers | AI | 3D printing | Drones | Computer science | Physics | Programming | Materials science | USB | UWB | Android | Digital photography | Science Credentials
- Shankland covered the tech industry for more than 25 years and was a science writer for five years before that. He has deep expertise in microprocessors, digital photography, computer hardware and software, internet standards, web technology, and more.