This is part three of Ars' guide about virtualisation. "Part 1 described three ways in which a component might be virtualized; emulation, "classic" virtualization, and paravirtualization, and part 2 described in more detail how each of these methods was used in CPU virtualization. But the CPU is not the only part of a computer that can use these techniques; although hardware devices are quite different from a CPU, similar approaches are equally useful."

Sometimes, you come across news items that make you go "eh...?" This is definitely one of them: Microsoft has announced a new anti-piracy update for Windows 7 that phones home every 90 days to check for new activation cracks, but the update is entirely optional - which kind of makes me wonder about the point.

"Silvan Scherrer and Dmitry A. Kuminov have released the GA of the port of the Qt 4 application framework to OS/2 and eComStation, i.e., version 4.5.1 GA. The new release comes with complete support for drag and drop, session management, SQLite3, and includes the Qt Designer application."

The Mom of all internet companies, Google, has announced today that it will effectively become an internet service provider. The company is planning on building a number of ultra high-speed broadband networks in select locations in the United States, serving anywhere between 50000 and 500000 users.

"In years past, an ISSCC presentation on a new processor would consist of detailed discussion of the chip's microarchitecture (pipeline, instruction fetch and decode, execution units, etc.), along with at least one shot of a floorplan that marked out the location of major functional blocks (the decoder, the floating-point unit, the load-store unit, etc.). This year's ISSCC is well into the many-core era, though, and with single-chip core counts ranging from six to 16, the only elements you're likely to see in a floorplan like the two below are cores, interfaces, and switches. Most of the discussion focuses on power-related arcana, but most folks are interested in the chips themselves. In this short article, I'll walk you through the floorplan of two chips with similar transistor counts - the Sun's Niagara 3 and IBM's POWER7."