memory protection
<memory management> A system to prevent one {process}
corrupting the memory (or other resources) of any other,
including the {operating system}. Memory protection usually
relies on a combination of hardware (a {memory management
unit}) and software to allocate memory to processes and handle
{exceptions}.
The effectiveness of memory protection varies from one
operating system to another. In most versions of {Unix} it is
almost impossible to corrupt another process' memory, except
in some archaic implementations and {Lunix} (not {Linux}!).
Under {Microsoft Windows} (version? hardware?) any {16 bit
application}(?) can circumvent the memory protection, often
leading to one or more {GPFs}. Currently (April 1996) neither
{Microsoft Windows} 3.1, {Windows 95}, nor {Mac OS} offer
memory protection. {Windows NT} has it, and Mac OS System 8
will offer a form of memory protection.
[MS DOS {EMM386} relevant?]
(1996-09-10)