Linked by Thom Holwerda on Tue 21st Dec 2010 22:56 UTC, submitted by fran
Windows Very light on details, but this is interesting nonetheless - very interesting, and potentially one of the biggest things to have hit the operating systems business this decade. Bloomberg is reporting that Microsoft plans to announce Windows for ARM processors at CES in January 2011.
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RE[3]: Kernel is portable
by Drumhellar on Wed 22nd Dec 2010 02:48 UTC in reply to "RE[2]: Kernel is portable"
Drumhellar
Member since:
2005-07-12

Or not.

"According to Microsoft, it is a common misconception that the Xbox and Xbox 360 use a modified Windows 2000 kernel. They claim that the Xbox operating system was built from scratch but implements a subset of Windows APIs. The idea that it does, indeed, run a modified copy of the Windows kernel still persists in the community."

http://en.wikipedia.org/wiki/Windows_NT

Reply Parent Score: 4

RE[4]: Kernel is portable
by Luminair on Wed 22nd Dec 2010 04:14 in reply to "RE[3]: Kernel is portable"
Luminair Member since:
2007-03-30

According to me the idea that Microsoft wrote a new operating system for the Xbox (which is identical to an x86 PC) is ridiculous.

Reply Parent Score: 2

RE[5]: Kernel is portable
by viton on Wed 22nd Dec 2010 13:18 in reply to "RE[4]: Kernel is portable"
viton Member since:
2005-08-09

According to me the idea that Microsoft wrote a new operating system for the Xbox (which is identical to an x86 PC) is ridiculous.

It is the only option actually.
Game machine doesn't need thick HAL or drivers. Everything is fixed and works directly with hardware.
OS is tuned for performance, memory consumption.
It has no swap. It must occupy fixed, predictable amount of ram.
You can't just allocate "a couple more of megabytes" YOU FAILED. You can't consume much more CPU time - YOU FAILED.

Edited 2010-12-22 13:19 UTC

Reply Parent Score: 4

RE[5]: Kernel is portable
by Drumhellar on Wed 22nd Dec 2010 20:23 in reply to "RE[4]: Kernel is portable"
Drumhellar Member since:
2005-07-12

According to me the idea that Microsoft wrote a new operating system for the Xbox (which is identical to an x86 PC) is ridiculous.


Why is it ridiculous? When they already had DOS/Windows, they wrote a new OS (WindowsNT) for higher-end, 32-bit systems.

For palm-top computers, they wrote a new OS (Windows CE) rather than trim-down an existing OS. (according to the wikipedia entry)

The NT kernel has way too much abstraction to be useful for a console system. Microsoft is also a very large company, with more than enough resources to spin a new kernel, especially a small one useful for a console. I'd be willing to wager it would be more work to make NT suitable for the XBox than just write a new kernel for it, especially when the XBox came out.

Reply Parent Score: 2