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Intel

Intel Next-Gen CPU Has Memory Controller and GPU 307

Many readers wrote in with news of Intel's revelations yesterday about its upcoming Penryn and Nehalem cores. Information has been trickling out about Penryn, but the big news concerns Nehalem — the "tock" to Penryn's "tick." Nehalem will be a scalable architecture with some products having on-board memory controller, "on-package" GPU, and up to 16 threads per chip. From Ars Technica's coverage: "...Intel's Pat Gelsinger also made a number of high-level disclosures about the successor to Penryn, the 45nm Nehalem core. Unlike Penryn, which is a shrink/derivative of Core 2 Duo (Merom), Nehalem is architected from the ground up for 45nm. This is a major new design, and Gelsinger revealed some truly tantalizing details about it. Nehalem has its roots in the four-issue Core 2 Duo architecture, but the direction that it will take Intel is apparent in Gelsinger's insistence that, 'we view Nehalem as the first true dynamically scalable microarchitecture.' What Gelsinger means by this is that Nehalem is not only designed to take Intel up to eight cores on a single die, but those cores are meant to be mixed and matched with varied amounts of cache and different features in order to produce processors that are tailored to specific market segments." More details, including Intel's slideware, appear at PC Perspectives and HotHardware.
Operating Systems

Virtualizing Cuts Web App Performance 43% 223

czei writes "This just-released research report, Load Testing a Virtual Web Application, looks at the effects of virtualization on a typical ASP Web application, using VMWare on Linux to host a Windows OS and IIS web server. While virtualizing the server made it easier to manage, the number of users the virtualized Web app could handle dropped by 43%. The article also shows interesting graphs of how hyper-threading affected the performance of IIS." The report urges readers to take this research as a data point. No optimization was done on host or guest OS parameters.
Wireless Networking

Submission + - Terahertz spectrum for wireless communication

holy_calamity writes: A first step to allowing wireless data transfer over a currently unused part of the electromagnetic spectrum are reported in New Scientist. Terahertz radiation exists between radio and infrared. A new filter created at the University of Utah can filter out particular frequencies, a prerequisite for using it for data. The abstract of the paper in the journal Nature is freely available.
Robotics

Cisco Develops Mobile Robots for Wireless Nets 51

coondoggie writes "Cisco has developed a set of small smart robots, which can act as wireless communications relays, that sense when a mobile user is moving out of service range, and can follow the user to maintain connectivity. According to Dave Buster, product marketing manager for the Cisco Global Government Solutions Group, the robots can follow a user almost anywhere to maintain connectivity. Published reports said the robots were part of Cisco's "Information on the move" initiative — a wide ranging plan to secure all things wireless. Whether or not the systems has an enterprise application, it is of interest to the military and initiatives such as the Army's Future Combat Systems which uses a variety of advanced systems to achieve battleground superiority."
KDE

Submission + - KDE 4.0 the holy grail of Desktops ?

An anonymous reader writes: With KDE 4.0 being expected some time this year, expectation runs high in the linux/unix users camp and the media read a lot between the lines of what the KDE developers say and do. In some ways KDE will provide a standard as to how a desktop should look and behave. This interesting article wonders whether KDE 4.0 will become the complete desktop which will meet the needs of a wide cross section of computer users. One of the common complaints that some Linux users have over KDE is that it is too cluttered. And by addressing this need without putting off the power users, the KDE developers could make it an all in one Desktop. Keep in mind that KDE 4.0 is based on Qt 4.0 and so can be easily ported to Windows and other OSes too which makes this thought doubly relevant.

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