The classic Mac OS allocates memory to an application two ways.
1. Direct allocation during program launch. This is what you see in the Get Info window.
2. Dynamic temporary allocation off the system heap.
The latter technique lets a program be sized (1) for "average" operations. Then, when it needs extra memory - for bigger windows or whatever - it just asks the OS on the fly for it (2).
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Are you saying that some programs can use memory above what is allocated in Get Info ?
Somehow I have not experienced this. And have always thought of Mac OS as having a "protected " memory allocation.
Coming to Macs from a now mainly defunct platform I have always preferred a fully dynamic memory. It gives the programs
the freedom to operate without a lot of workflow disturbing messages which need attention.
-- Adrian
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