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 for byte-code
From The Free On-line Dictionary of Computing (30 December 2018) :

      A binary file containing an
     executable+program,+consisting+of+a+sequence+of+({op+code">executable program, consisting of a sequence of ({op code,
     data) pairs.
     Byte-code op codes are most often fixed size bit patterns, but
     can be variable size.  The data portion consists of zero or more
     bits whose format typically depends on the op code.
     A byte-code program is interpreted by a byte-code
     interpreter.  The advantage of this technique compared with
     outputing machine code for some particular processor is that
     the same byte-code can be executed on any processor on which
     the byte-code interpreter runs.  The byte-code may be compiled
     to machine code ("native code") for speed of execution but
     this usually requires significantly greater effort for each
     new taraget architecture than simply porting the interpreter.
     For example, Java is compiled to byte-code which runs on the
     Java Virtual Machine.

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