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Dr. AMBEDKAR INSTITUTE OF TECHNOLOGY
(An Autonomous Institute, Affiliated to Visvesvaraya Technological University, Belagavi, Accredited by NAAC, with ‘A’ Grade)
PRESENTATION TOPIC :
“INSTANTANEOUS DESCRIPTION”
SUBMITTED BY:
PRATEEKSHA TRIPATHY
1DA21CS103
SUBMITTED TO :
MEGHA L.
Assistant Professor
Dr . AIT
DEFINITION OF INSTANTANEOUS DESCRIPTION
Instantaneous Description (ID) is a critical concept in theoretical computer science,
offering a snapshot of the current state of an automaton or compiler during its
operation. This allows us to dissect the behavior of these systems at different points in
time, aiding our understanding of their inner workings.
An Instantaneous Description is a succinct representation capturing the complete state
of an automaton or compiler at a specific moment. It provides a momentary snapshot,
enabling us to track the progression of these systems through various states and inputs.
Understanding ID is fundamental for comprehending the behavior of automata and
compilers. It serves as a powerful tool in the analysis, design, and optimization of these
systems.
COMPONENTS OF INSTANTANEOUS DESCRIPTION
These 4 components collectively form the snapshot that is the Instantaneous
Description.
• State:
In an automaton or compiler, the state represents the current condition or phase of
the system.
• Input:
This component encapsulates the portion of the input being processed at any given
moment.
• Stack Contents (if applicable):
For pushdown automata, the stack holds additional information and becomes an
integral part of the ID.
• Cursor Position (if applicable):
Indicates the position within the input being processed, providing a dynamic aspect
to the ID.

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atcd instantaneous description 5th semester engineering.pptx

  • 1. Dr. AMBEDKAR INSTITUTE OF TECHNOLOGY (An Autonomous Institute, Affiliated to Visvesvaraya Technological University, Belagavi, Accredited by NAAC, with ‘A’ Grade) PRESENTATION TOPIC : “INSTANTANEOUS DESCRIPTION” SUBMITTED BY: PRATEEKSHA TRIPATHY 1DA21CS103 SUBMITTED TO : MEGHA L. Assistant Professor Dr . AIT
  • 2. DEFINITION OF INSTANTANEOUS DESCRIPTION Instantaneous Description (ID) is a critical concept in theoretical computer science, offering a snapshot of the current state of an automaton or compiler during its operation. This allows us to dissect the behavior of these systems at different points in time, aiding our understanding of their inner workings. An Instantaneous Description is a succinct representation capturing the complete state of an automaton or compiler at a specific moment. It provides a momentary snapshot, enabling us to track the progression of these systems through various states and inputs. Understanding ID is fundamental for comprehending the behavior of automata and compilers. It serves as a powerful tool in the analysis, design, and optimization of these systems.
  • 3. COMPONENTS OF INSTANTANEOUS DESCRIPTION These 4 components collectively form the snapshot that is the Instantaneous Description. • State: In an automaton or compiler, the state represents the current condition or phase of the system. • Input: This component encapsulates the portion of the input being processed at any given moment.
  • 4. • Stack Contents (if applicable): For pushdown automata, the stack holds additional information and becomes an integral part of the ID. • Cursor Position (if applicable): Indicates the position within the input being processed, providing a dynamic aspect to the ID.