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Comment First, fan out the heat (Score 1) 414

If you effectively duct the heat pushed out by the rack units to the outside, your requirement to cool down the hot exhausted air in the room diminishes quite a lot.

Ok, not usually possible with computers, but I used to do that for racks of audio power amplifiers used in a permanent install. They drew air in from the front of the racks and blew out the back which was fanned outside, thus the room didn't require much to keep it cool.

Upgrades

Tcl/Tk 8.5.0 Released 148

dkf writes "Tcl/Tk 8.5 has been released for all major platforms after 5 years of development. There are many new goodies in it, including significant speedups through an advanced bytecode engine, stronger localization of applications, integrated arbitrary-precision arithmetic, a whole bunch of brand new skinnable widgets, anti-aliased text support on all platforms, and a new code-module management system to make maintenance of installations a snap. More in-depth information about the features of both this release and Tcl/Tk in general is available at the official Tcl/Tk website. Mark Roseman's blog has a first-look review."
Music

Submission + - Tax on camera storage to benefit RIAA

An anonymous reader writes: "New levies proposed for iPods and memory cards": The Canadian government is proposing that the common, portable, digital storage mediums (DVDs, CDs, compact flash, SD cards, etc) be whacked with a levy to reflect their use in piracy and that the money from that levy goes to...you guessed it, the music industry. If it were just CDs, I might be happy, but solid state storage is just a bridge too far. http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20071221/copyright_act_071221/20071222?hub=Canada
Programming

Submission + - Tcl/Tk 8.5.0 is out (www.tcl.tk)

davygrvy writes: "Latest Release: Tcl/Tk 8.5.0 (Dec 20, 2007)

The 8.5 release was a long time in development, and brought about several good enhancements to Tcl/Tk.
Source releases, the exact changes and ChangeLog for each release are available in the SourceForge Tcl project's file distribution area:

Download Tcl/Tk 8.5.0 Source Releases

Download ActiveTcl 8.5.0 Binaries

The change information is also included in each distribution.

Remember: For other ways to obtain Tcl/Tk (such as binary distributions, or different versions) see the main Tcl/Tk page. Highlights of Tcl 8.5
  • Speed: 8.5 now runs 10% faster than 8.4 with bytecode improvements, object caching and reduced memory usage.
  • Bignums: Tcl now supports arbitrary-precision integers, which improves math operations on large integers.
  • Safer interps: Tcl's powerful safe interpreter mechanism now has improved control of time and command limits in slave interpreters.
  • clock command: More robust implementation of command for specifying time, with significant l10n and i18n improvements.
  • dict command: New data structure that allows access to data by value rather than a variable name, which is substantially faster.
  • Additional improvements: Faster list search, new and improved mathematics procedures, anonymous procedures, new ways to package Tcl extensions, Tcl-level custom channel types, file and line location information for each command, and more.
Highlights of Tk 8.5
  • New modern theming engine: New and complementary widgets that make use of platform-specific theming on Mac OS X and Windows to better fit in with those environments, and feature an improved look and feel under X11. (screenshots)
  • New widgets: Part of the themed widget set, Tk now has core notebook, combobox, treeview and progressbar widgets.
  • text widget: Smooth scrolling, widget peering, and improved procedures for counting and replacing text.
  • Font rendering: Now uses anti-aliased text under X11, and a more modern text engine (ATSUI) on Mac OS X.
  • Additional improvements: Window transparency, new fullscreen option for windows, enhancements to specific widgets and window layout, and more.


There is of course much, much more. See 8.5 Changes on the wiki for a complete list of new features."

Television

Submission + - Linux MCE: All Your Components Are Belong to Us (fastsilicon.com)

mrneutron2003 writes: "
While looking at new Linux technologies, we ran across an amazing OS called Linux MCE. This OS literally resembles the Borg from the popular Star Trek series. The operating system assimilates every component in a house from audio video gear, receivers, TVs, phones, cell phones, web cams, all infrared devices, lighting, alarms systems, and many others into a mesh like network of interoperability. Is this the end all be all of Home media centers? It integrates every component in a house into one cohesive system that follows users anywhere. One would think that this monolithic orgy of electronic devices would take hours and hours to setup and thousands of dollars in equipment. However, it takes a little under four hours to have a fully automated, cataloged home media mesh network that puts cost effective home mobility and productivity to a whole new standard. Bill Gates' operational house for a minuscule of the price, read on for more information.

http://www.fastsilicon.com/off-the-wall/linux-mce-all-your-components-are-belong-to-us.html"

Amiga

Submission + - Amiga OS 4.0 to run on BlueGene processors 2

Amigan writes: "Recent announcements by Hyperion Entertainment concerning Amiga OS 4.0 seem to show promise that the OS will finally see the light of day. Included in the announcement is the ability to run the new OS on classic Amigas with a PowerPC add-on board. Also, a new hardware partner, A-Cube Systems has been introduced. This company is producing new hardware based on the ppc440 — the same processor used in IBM's top500 Blue Gene/L."
Software

Submission + - Tcl/Tk 8.5 released (www.tcl.tk) 2

wordtech writes: "The Tcl Core Team is pleased to announce the 8.5.0 releases of the Tcl dynamic language and the Tk GUI toolkit. This is the first stable release of Tcl/Tk 8.5, following more than four years of development, and represents a major advance over previous versions of Tcl/Tk.

Highlights of Tcl 8.5: * Speed: 8.5 now runs 10% faster than 8.4 with bytecode improvements, object caching and reduced memory usage. * Bignums: Tcl now supports arbitrary-precision integers, which improves math operations on large integers. * Safer interps: Tcl's powerful safe interpreter mechanism now has improved control of time and command limits in slave interpreters. * clock command: More robust implementation of command for specifying time, with significant l10n and i18n improvements. * dict command: New data structure that allows access to data by value rather than a variable name, which is substantially faster. * Additional improvements: Faster list search, new and improved mathematics procedures, anonymous procedures, new ways to package Tcl extensions, Tcl-level custom channel types, file and line location information for each command, and more.

Highlights of Tk 8.5: * New modern theming engine: New and additional widgets that make use of platform-specific theming on Mac OS X and Windows to better fit in with those environments, and feature an improved look and feel under X11. (For screenshots, see http://wiki.tcl.tk/13636.) * Font rendering: Now uses anti-aliased text under X11, and a more modern text engine (ATSUI) on Mac OS X. * Text widget: Smooth scrolling, widget peering, and improved procedures for counting and replacing text. * Additional improvements: Window transparency, new fullscreen option for windows, enhancements to specific widgets and window layout, and more.

For more information on Tcl/Tk 8.5, see http://www.tcl.tk/software/tcltk/8.5.html."

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