Question: In early UNIX systems, executable files ( a . out files ) began with a very specific magic number, not one chosen at random. These

In early UNIX systems, executable files (a.out files) began with a very specific magic
number, not one chosen at random. These files began with a header, followed by the
text and data segments. Why do you think a very specific number was chosen for ex-
ecutable files, whereas other file types had a more-or-less random magic number as the
first word?

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