Hardware Archive

Integrated Circuit That Doesn’t Require a Battery

Researchers at the Virginia Commonwleth University have come up with . . . a circuit that requires such little power all it needs is the ambient energy in an environment to run. In other words, it can run without need of a power lead or battery, relying instead on some energy constant in the environment in which it functions e.g. the human body. In order to create something that can run on such low, ambient energy, you need to use electronics that require next to no power to function. So instead of the typical charge-based electronic switches used today, the researchers turned to spin transport electronics, more commonly known as spintronics.

AMD Eschews Smartphones, Tiptoes Towards Tablets

Last week, Rick Bergman, general manager of AMD's Product Group, noted that while AMD was excited about the growth opportunities it saw within the tablet market, it had no plans to enter the smartphone space. Bergman's comments are a reassuring indication that the company hasn't concocted a harebrained scheme to charge off into a market it can't currently compete in. The emerging tablet market is a different matter.

Best Mini-ITX HTPC Board?

And yes, another item, right away. I'm on the hunt for a mini-ITX motherboard for use in a living room HTPC, and considering there's so much choice out there, I'm a little confused. Then I realised I have you people to help me out, and, well, one thing led to another.

Breakthrough in Quantum Computing: Resisting ‘Quantum Bug’

"Scientists have taken the next major step toward quantum computing, which will use quantum mechanics to revolutionize the way information is processed. Quantum computers will capitalize on the mind-bending properties of quantum particles to perform complex calculations that are impossible for today's traditional computers. Using high magnetic fields, Susumu Takahashi, assistant professor in the USC Dornsife College of Letters, Arts and Sciences, and his colleagues managed to suppress decoherence, which is one of the key stumbling blocks in quantum computing."

The Story of FCopy for the C-64

"Back in the 80s, the Commodore C-64 had an intelligent floppy drive, the 1541, i.e. an external unit that had its own CPU and everything. The C-64 would send commands to the drive which in turn would then execute them on its own, reading files, and such, then send the data to the C-64, all over a propriatory serial cable. The manual for the 1541 mentioned, besides the commands for reading and writing files, that one would read and write to its internal memory space. Even more exciting was that one could download 6502 code into the drive's memory and have it executed there. This got me hooked and I wanted to play with that - execute code on the drive. Of course, there was no documention on what code could be executed there, and which functions it could use." Very interesting. I'm most interested in how he describes others taking his work, and making it better. This would be impossible today, thanks to Microsoft, Apple, and other patent trolls.

IDC, Gartner: Worldwide PC Shipments Increase Modestly

Both IDC and Gartner have released their PC shipment analyses again, and as it turns out, worldwide PC sales are on the rise. Gartner: "Worldwide PC shipments surpassed 85.2 million units in the second quarter of 2011, a 2.3 percent increase from the same period last year, according to preliminary results by Gartner, Inc. These results are below Gartner's earlier projection for 6.7 percent growth." IDC, too: "Worldwide PC shipments increased 2.6% in the second quarter of 2011 (2Q11), according to the IDC Worldwide Quarterly PC Tracker." From large to small, the world's largest PC manufacturers are HP, Dell, Lenovo, Acer, ASUS, and Toshiba. Lenovo demonstrated the largest growth worldwide (+22% compared to Q2 2010). Apple did quite well in the US, but doesn't register on the worldwide scale.

HP’s Apotheker: We’re Licensing webOS

HP's CEO Leo Aptheker is currently on stage at D9, answering questions from the audience. The thing hasn't concluded yet, but I think this one warrants its own item: Apotheker has revealed that HP is also licensing webOS to other hardware makers. "It's a great OS - why wouldn't we want to offer it to other companies? Why wouldn't they want to use webOS? Appliance makers could use it to connect up normal home devices. We'd like to make webOS available to these people - enterprises, SMBs, etc. Yes, webOS will be more than just a system that runs inside an HP product." When asked more directly if, for instance, HTC could build webOS phones, Apotheker answered: "We'd certainly have that conversation."

OSnews Asks on Interrupts: More Results

Having read the feedback resulting from my previous post on interrupts (itself resulting from an earlier OSnews Asks item on the subject), I've had a look at the way interrupts work on PowerPC v2.02, SPARC v9, Alpha and IA-64 (Itanium), and contribute this back to anyone who's interested (or willing to report any blatant flaw found in my posts). I've also tried to rework a bit my interrupt handling model to make it significantly clearer and have it look more like a design doc and less like a code draft.

HP Advances Next-Gen ‘Memristor’ Memory Technology

HP scientists have made a small breakthrough in the development of a next-generation memory technology called memristors, which some see as a potential replacement for today's widely used flash and DRAM technologies. In a paper to be published Monday in the journal "Nanotechnology," scientists report that they have mapped out the basic chemistry and structure of what happens inside a memristor during its electrical operation.

Howto: Linux on Your Wireless Router

Cheap routers sometimes lack a bit in functionality. Maybe you wish yours did VPN, had a guest network for relatives passing by, or supported IPv6. In most case, the hardware supports it, and all it takes to get these options is to install an alternative third-party firmware. Such firmwares also are frequently more reliable and faster than vendor-provided ones. So why not give them a try?

USB Stick PC for $25

Well-known game developer David Braben is a little bit fed up with the state of computer science education these days, which seems to have shifted away from learning programming to some sort of computer-oriented "life skills" class. As the father of eleven and nine year-old boys, I can attest that so far, despite a massive investment on the part of their school in computer equipment, their computer education has consisted mostly of "play this math game" and "don't be victimized by cyber-perverts." Braben's idea to stem this tide: a very, very cheap computer that students can learn to program on.

Using a RISC Accelerator Chip to Speed up Smartphones

Startup chip design company Adapteva has announced the multicore Epiphany processor, which is designed to accelerate applications in servers and low-power devices such as smartphones and tablets. The RISC-based processor is scalable to thousands of cores on a single chip, and can sit alongside CPUs to provide real-time execution of diverse applications. The processor can accelerate tasks like hand gesture recognition, face matching or face tracking, but is not designed to be a full-fledged CPU.

OSnews Asks on Interrupts: The Results

About one month ago, I've posted an OSnews Asks item asking for details on how interrupts work on various architectures. Since then, I've been reading the manuals and comments, and have extracted what I found to be a summary of the specifics of each architecture. I've then written my first attempt at a portable interrupt handling model based on this data for my pet OS. Now I contribute this back to OSnews, so that these resources get more exposure for those who are interested.

Graphics-enabled CPUs to take off in 2011

Half the notebook computers and a growing number of desktops shipped in 2011 will run on graphics-enabled microprocessors as designers Intel and AMD increase competition for the units that raise multimedia speeds without add-ons. Processors with built-in graphics capabilities will be installed this year on 115 million notebooks, half of total shipments, and 63 million desktop PCs, or 45 percent of the total, according to analysts.

Calxeda To Offer 480-core ARM Server

"While Intel may already be worried about ever gaining a foothold in the mobile chip market. ARM is starting to push into the high-end server market too with news of a 480-core, low power server in the works. The company behind the new server is a data center startup called Calxeda. Its focus is on building a processor platform that will have a significant impact on IT costs and energy consumption. They go so far as to claim a factor of 10 reduction in costs and a 5x, or even 10x performance gain over what is currently available."