On Thu, 7 May 1998, Allison J Parent wrote:
> <altering the computer (machine) is that there is a definite distinction
> <between the circuitry to drive the logic unit (CPU) and the circuitry
> <which defines the stored program (code). So while a masked ROM cannot b
> <altered, you can swap out the ROM with a new ROM with a completely
> <different set of instructions, while the rest of the circuitry which
> <executes the code remains unmodified.
>
> Apply that to the 8048 or other single chip mcu.
Ok, ignore the physical aspects which would allow or prevent the
alteration of the computer. Logically, the code (function) is removed
from the CPU (circuitry). In an analog circuit, the circuit IS the code
AND the executor. A digital computer has a definite distinction between
the code and the executor.
Sam Alternate e-mail: dastar_at_siconic.com
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Received on Thu May 07 1998 - 10:47:36 BST