Computerworld - Researchers at Stanford University have demonstrated the first functional computer built using only carbon nanotube transistors.
Scientists have been experimenting with transistors based on carbon nanotubes, or CNTs, as replacements for silicon transistors, which may soon hit their physical limits.
The rudimentary CNT computer is said to run a simple operating system capable of multitasking, according to a synopsis of an article published in the journal Nature.
Made of 178 transistors, each containing between 10 and 200 carbon nanotubes, the computer can do four tasks summarized as instruction fetch, data fetch, arithmetic operation and write-back, and run two different programs concurrently.
The research team was led by Stanford professors Subhasish Mitra and H.S. Philip Wong.
"People have been talking about a new era of carbon nanotube electronics moving beyond silicon," Mitra said in a statement. "But there have been few demonstrations of complete digital systems using [the] technology. Here is the proof."
IBM last October said its scientists had placed more than 10,000 transistors made of nano-size tubes of carbon on a single chip. Previous efforts had yielded chips with just a few hundred carbon nanotubes.
This version of this story was originally published in Computerworld's print edition. It was adapted from an article that appeared earlier on Computerworld.com.
Read more about Hardware in Computerworld's Hardware Topic Center.
- Why Projects Fail CIOs are expected to deliver more projects that transform business, and do so on time, on budget and with limited resources.
- The New Business Case for Video Conferencing: 7 Real-World Benefits Beyond Cost-Savings This whitepaper provides insight into the value of video conferencing in today's business environment, and how organizations are using visual collaboration to find...
- Gartner Magic Quadrant for Client Management Tools The client management tool market is maturing and evolving to adapt to consumerization, desktop virtualization, and an ongoing need to improve efficiency.
- Audit Ready and Asset Optimized: The Solid Promise of an Intelligent Software Asset Management Solution In this paper Frost & Sullivan examines the benefits of enterprise-grade Software Asset Management solutions, and how these solutions serve as the convergence...
- Redefine Your IT Operations: Remote Office IT Has Never Been Simpler Join us to see why PC Pro named Dell PowerEdge VRTX the "2013 Server of the Year." PowerEdge VRTX may be just what...
- LIVE EVENT: 5/7, The End of Data Protection As We Know It. Introducing a Next Generation Data Protection Architecture. Traditional backup is going away, but where does this leave end-users? All Hardware White Papers | Webcasts