Comparing the designs of Windows 3.1, Windows 95, OS/2 Warp Connect, and Windows
NT 3.51 (cont'd)
All four OSes run 16-bit Windows applications. All four can run 32-bit applications (albeit not necessarily the same ones). But they each have different ways to ensure that the applications run. The Windows 3.1 architecture is probably the easiest to crash; Windows NT's architecture is probably the most secure. Here's why.
Windows 95
Windows 95 modifies the Windows 3.1 model a little. Much of the OS's code still runs in the same space as your applications, but Win32 applications are run within private address spaces, which decreases the likelihood of one bad application crashing all of Windows 95. Notice that DOS is still in the bottom 4 MB of memory, along with USER, GDI, and KRNL386. Not that much seems to have changed.
Flexible C++
Matthew Wilson
My approach to software engineering is far more pragmatic than it
is
theoretical--and no language better exemplifies this than C++.
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