Next Step in IT: DC Power?

power_supplyInfoWorld has an interesting article about a new upcoming trend in datacenters; using DC power instead of AC. The whole idea behind this being is that as much as 50% of the energy consumed in datacenters is wasted in the AC to DC conversion. The typical path of electricity is AC from power company to racks, then converted to DC then back to AC by a UPS, then in the server power supply converted back to DC for the internal electronics. Each conversion loses a little energy but multiply that by the amount of servers and the loss starts to add up.

The solution is to forget AC all together and run DC directly to the servers. HP, IBM, and Sun are all starting to make their servers with optional DC power supplies and trying to get a standard wiring, voltage, and connector ratified. This move will help companies with limited space expand their datacenter. This is because the energy lost in the conversion from AC to DC and back is released as heat, so the fewer conversion the less cooling needed the more servers you can pack into a datacenter.

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ArsTechnica Review of Windows 7

ArsTechnica has a rather extensive review of Windows 7, including the new taskbar, window management, and improvements to explorer and the control panel.

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Windows 7 Beta

LogoMicrosoft’s newest version of Windows is in public beta and I’ve decided to have a look at it. I’ve installed in it a Virtual Machine on Sun’x VirtualBox. It looks like it doesn’t work on Vmware Server less than version 2.

The install process was very simple, insert the disk and click install and wait. After it copies all files it restarts and then asks the standard questions about time, username, password, serial key, and automatic updates. After that you will be greeted by the new desktop. The first thing you’ll notice is the taskbar is cleaner and when you open programs it displays icons instead of names of the programs, then you hover over the icons to see a preview of the window. Although the Aero interface wasn’t available in the virtual machine it is still part of 7.

desktop1

I’ve very limited experience with Vista but this version of Windows seems like it fixed some of the problems with Vista and made other improvements along the way. I took a few screenshots of the install screen and of the desktop.

CNet Review

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IE patch released: Please Update

Microsoft has rushed out a patch to fix a serious zero-day exploit that was discovered last week. After urging users to stop using Internet Explorer they released the patch to fix it. It should be coming through automatic updates and others can download it from here.

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Google Chrome 1.0

Google ChromeGoogle Chrome is no longer beta, yes you heard right a Google product that isn’t beta. After only being beta for 3 and 1/2 months Google removed the beta tag with the release of 1.0 Thursday. It appears that Google has been busy improving their browser, it’s now 1.4 times faster processing JavaScript. Many popular plugins are also said to run faster. Another area of improvement was with the bookmark management, this was a sore area with some users who like to export and organize their bookmarks which now they can. The privacy options have also been improved.

Source: InformationWeek
Download Chrome: GoogleBlog

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