Introduction to Artificial Intelligence (AI)

Introduction to Artificial Intelligence (AI)

1. Definition of AI

Artificial Intelligence (AI) is a branch of computer science focused on creating systems capable of performing tasks that typically require human intelligence. These tasks include reasoning, learning, problem-solving, perception, language understanding, and decision-making.

Key Definitions:

  • John McCarthy (1956): "The science and engineering of making intelligent machines."
  • Elaine Rich: "AI is the study of how to make computers do things at which, at the moment, humans are better."

2. History of AI

Timeline Overview:

 1940s-50s (Foundations):

  •  Alan Turing proposed the concept of a "universal machine" (Turing Machine).
  •  1950: Turing Test introduced in “Computing Machinery and Intelligence”.

 1956 (Birth of AI):

  •  Dartmouth Conference – John McCarthy, Marvin Minsky, Nathaniel Rochester, and Claude Shannon formalized AI as a field.

 1960s-70s:

  •  Early AI programs (e.g., ELIZA, SHRDLU).
  •  Success in problem solving and symbolic reasoning.

 1980s:

  •  Rise of expert systems (e.g., MYCIN).
  •  AI Winter due to unmet expectations and funding cuts.

 1990s-2000s:

  •  AI integrated into industrial applications.
  •  Notable milestones: IBM's Deep Blue beats Kasparov (1997).

 2010s-present:

  •  Rapid advances due to big data, deep learning, and computational power.
  •  Milestones: Siri, AlphaGo, autonomous vehicles, ChatGPT.

3. AI vs Human Intelligence

| Aspect | Artificial Intelligence | Human Intelligence |
|-------------|------------------------------|--------------------------|
| Nature | Artificial, machine-based | Biological, brain-based |

✅Explanation:
  • AI is created and powered by computers and software, mimicking certain cognitive functions. It is man-made and entirely dependent on computational infrastructure.
  • Human intelligence is a product of evolution and biology, emerging from the brain's complex neural structures. It’s organic, self-evolving, and shaped by genetics and environment.

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