Linked by Thom Holwerda on Fri 1st Feb 2013 18:25 UTC
Windows A few days ago, Microsoft released the long-awaited Windows Phone 7.8 update for all those users who will be stuck on Windows Phone 7 forever because there's no upgrade path to Windows Phone 8 other than buying a new phone. Now that it's here, what, exactly, does WP7.8 to the table?
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RE[7]: No confidence
by Thom_Holwerda on Mon 4th Feb 2013 08:29 UTC in reply to "RE[6]: No confidence"
Thom_Holwerda
Member since:
2005-06-29

Not really. The OS kernel is pretty well defined in the world of OS development. The kernel is the underlying component that coordinates the rest of the OS. The OP was correct, MS have changed the OS kernel exactly once (i.e. CE to NT) in the lifetime of Windows Phone (all Windows phone, since the first Windows CE based phone OS.)
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Technically, this isn't true. Windows Phone has switched to Windows CE 6.0 from 5.2, and 6.0 was a ground-up rewrite of the CE kernel - it was brand new.

So technically, they switched twice.

Reply Parent Score: 2

RE[8]: No confidence
by henderson101 on Mon 4th Feb 2013 12:50 in reply to "RE[7]: No confidence"
henderson101 Member since:
2006-05-30

They re-architected the kernel to allow it to have more than 32 processes(to up to 32k processes), 2GB of virtual memory per process and moved a lot of critical services in to kernel space (but then they did that to NT between NT 3.x and NT 4.0), but I couldn't find a technical source that explicitly said that the kernel was a complete rewrite. Do you have a source? I'd be interested in reading more. Stuff like that is fascinating.

Reply Parent Score: 2