32-bit XP compatibility mode in 64-bit Windows7


T

Tom Lake

Mark Lloyd said:
On Sun, 20 Jun 2010 08:02:38 -0400, "Joe Morris"

[snip]
It's possible that we've got a terminology problem here. Did you use
"data
access width" to mean the size of the address bus? I didn't, but if
that's
the case I can see why you saw my reply as redundant.

Joe Morris
Yes, it is address, not data that's relevant here. People really get
stuck on improper terminology.
The Data bus is the path over which data flows. The 68000
was a 16/32-bit chip. It only had a 16-bit data bus. While its registers
and
operations were 32-bit, it could only get data from memory 16-bits at a
time.
It had a 16-bit address bus.
The 8088 was an 8/16-bit chip. It had an 8-bit data bus, 16-bit registers
and ops.
It had a 24-bit address bus.
I remember when very few people had an internet connection, and people
kept using the term "half duplex" inappropriately. It didn't seem to
matter that the common modem standards (Bell 212a, etc..) use full
duplex 100% of the time, and can't do otherwise.
In the '30's to the 'early '70's duplex meant something different than it
does today.
Half duplex meant that the terminal relied on a computer to send characters
back. There was no local echo. Full duplex, of course, meant that then you
pressed a key, the character would be printed locally without having to be
received
from the computer.

Tom Lake
 
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U

undisclosed

I'd like to offer you some resources for your discussion. First, fo
Windows XP Mode, which is available with Windows 7 Professional
Ultimate and Enterprise, you can see a video demo at 'Microsof
Showcase: Windows 7 Professional: Run Windows XP applications
(http://bit.ly/Win7ProXPMode) and more detailed info at 'Windows fo
Small Business: Windows XP Mode' (http://bit.ly/WinXPMode). And for 3
and 64 bit issues, there is a FAQ with answers to questions about th
32-bit and 64-bit versions of Windows is at 'Windows 7 Features: 64-bi
Support' (http://bit.ly/32and64bit). I hope this helps you out
 
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U

undisclosed

If you want to run older apps in Windows 7 Professional, there's
feature called Windows XP Mode. It opens apps in a window that look
like Windows XP, with the performance speed of Windows 7 Pro. There's
video demo at 'bit.ly/Win7ProXPMode' (http://bit.ly/Win7ProXPMode) an
more detailed info at 'bit.ly/WinXPMode' (http://bit.ly/WinXPMode)
 

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