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The Scoop on the Xbox 360's Embedded OS?

An anonymous reader writes "When the Xbox 360 was launched two weeks ago amid much brouhaha over its custom-designed IBM PowerPC-based CPU with 3 symmetrical cores running at 3.2GHz each, WindowsForDevices.com wondered aloud, 'What OS runs inside the Xbox 360?' Now, the website thinks it has found the answer to its question. No, it's not Linux or BSD, nor a derivative of Longhorn or Windows CE."

4 of 504 comments (clear)

  1. Heathens! by Jeremy+Erwin · · Score: 0, Redundant

    They dare to mock the sacred name of Linux!

    Quite honestly, there's very little story here. The XBox ran a stripped down version of Windows 2000, and the XBox 360 will run a modified version of that.

    At least until someone hacks the machine.

  2. what? by utexaspunk · · Score: 0, Redundant

    what- do they think we're actually going to look at the article to find out? pshah!

  3. Site already slowing down! by nubbie · · Score: 0, Redundant

    May 24, 2005

    When the Xbox 360 was launched two weeks ago amid much brouhaha over its custom-designed IBM PowerPC-based CPU with 3 symmetrical cores running at 3.2GHz each, WindowsForDevices.com wondered aloud, "What OS runs inside the Xbox 360?"

    We offered a few alternatives and called on our readers for their ideas on the subject. Now, we think we have the answer to our question.

    But first, a bit of background.

    As we stated in our previous story on this topic, the earlier Xbox (shown at right) was based on a Pentium-family processor and was said to run a variant of Windows 2000. But the new Xbox 360 has a completely different architecture, based on a custom triple-core IBM PowerPC processor along with other specialty silicon including a custom graphics processor made by ATI, plus 512MB of system DRAM (see table of specs at the bottom of this article).

    Since neither Windows XP nor Windows CE supports the PowerPC architecture (Windows hasn't supported PowerPC architecture since Windows NT 4.0 SP3), we devised the following set of alternatives for the Xbox 360's embedded OS:

    1. A hitherto unpublicized port by Microsoft of Windows XP or Windows CE to the PowerPC

    2. A version of some off-the-shelf embedded OS, possibly even a variant of BSD Unix or #%$@& (sorry, our censors deleted the "L-word")

    3. A new embedded software platform developed specifically for Xbox use

    And the OS is...

    So, which is it -- choice 1, choice 2, or choice 3?

    Our readers had some interesting comments, ranging from a derivative of the "yet to be released Longhorn" to "a ported Win XP kernel" to "its own private OS that was built from the ground up for gaming." And, to no one's surprise, nobody seemed to think Microsoft would embed BSD or "#%$@&" inside its Xbox!

    We also asked fellow editor and ExtremeTech technology analyst Jason Cross (and self-described "certified geek") whether he had turned up anything about the Xbox's embedded OS while he was at E3 2005. There, we seem to have struck gold. "Yes," Cross replied, he had indeed uncovered some interesting tidbits in conversations with folks both inside and outside of Microsoft. Here's what he told us . . .

    The original Xbox ran an OS that had its roots in Windows 2000. Granted, by the time you strip out everything that is not needed in a console like the Xbox and replace some of the parts with stuff specific to that device (like the file system), and add a few pieces, it hardly resembles anything remotely like Windows 2000 at all. But you could say that's where its original roots lie, even if 95 percent of it has been cut or heavily altered.

    The Xbox 360's OS, in turn, has its roots in the OS of the original Xbox. I've been told (not by Microsoft, but by one of its hardware partners) that the Xbox absolutely positively does NOT run Linux [oops, the censors missed that one --Ed.] or Unix or some variant of that. The Xbox 360 project started with the Xbox OS the same way the Xbox project started with Windows 2000. They cut, added, and changed it in both large and small ways. It's now quite a bit different from the Xbox OS, which was itself quite a bit different from Windows 2000.

    Really, the best way to think of it is as "The Xbox 360 OS." But if you really have to think of it in Windows terms, you could say it has roots in Windows 2000 by way of the original Xbox, albeit with sweeping changes along the way.

    So there you have it: the Xbox 360 reportedly runs a second-order derivative of Windows 2000 that has been ported to the custom triple-core IBM PowerPC processor. Well, that's what we think, anyhow.

    Why does it matter?

    Bear in mind, Microsoft has big plans for the home -- plans that include media center PCs, family entertainment centers, TV set-top boxes, portable media players, mobile phones, and, of course, gaming devices.

    Considering that the Xbox 360 represents a powerful new computing platfo

    --
    'Go for the eyes, Boo, go for the eyes, aaarrrrrrrr!' -- Minsc
  4. Re:Wow by gowen · · Score: 0, Redundant

    Three posts : each giving the same answer to the same question.

    --
    Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.