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1 definition found
 for ''abstract machine''
From The Free On-line Dictionary of Computing (30 December 2018) :

  abstract machine
     1.  A processor design which is not intended to be
     implemented as hardware, but which is the notional executor
     of a particular intermediate language (abstract machine
     language) used in a compiler or interpreter.  An abstract
     machine has an instruction set, a register set and a model
     of memory.  It may provide instructions which are closer to
     the language being compiled than any physical computer or it
     may be used to make the language implementation easier to
     port to other platforms.
     A virtual machine is an abstract machine for which an
     interpreter exists.
     Examples: ABC, Abstract Machine Notation, ALF, CAML,
     F-code, FP/M, Hermes, LOWL,
     Christmas, SDL, S-K reduction machine, SECD, Tbl,
     Tcode, TL0, WAM.
     2.  A procedure for executing a set of instructions in
     some formal language, possibly also taking in input data and
     producing output.  Such abstract machines are not intended to
     be constructed as hardware but are used in thought
     experiments about computability.
     Examples: Finite State Machine, Turing Machine.

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