Bryan McAllister’s personal reference notebook
July 27, 2026Short & citedBlog
Civic Viewpoint.
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Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
How It Works • AI

Artificial intelligence

Artificial intelligence (AI) is a field of computer science and engineering focused on creating systems that can perform tasks associated with human intelligence, such as learning, reasoning, problem-solving, perception, and decision-making.

Updated July 27, 20261 min readCited sources

Artificial intelligence (AI) is a field of computer science focused on building systems that perform tasks associated with human intelligence. It powers many modern technologies, from search engines to autonomous systems.

What it is

AI refers to both a research field and a set of technologies for creating systems that can learn, reason, solve problems, perceive, and make decisions. It draws on computer science, engineering, mathematics, logic, linguistics, neuroscience, and psychology.

Why it matters

AI is used in search engines, recommendation systems, automated translation, fraud detection, medical diagnostics, and industrial automation. Canada is a major hub for AI research and adoption, with active centres in Toronto, Montreal, and Edmonton.

Key details

Major subfields include machine learning, natural language processing, computer vision, and robotics. AI has evolved from symbolic approaches to data-driven methods. While powerful in specific tasks, it does not yet match the full flexibility of human intelligence.

In short

  • AI is both a scientific field and a set of technologies for intelligent systems.
  • AI systems perform tasks that typically require human intelligence.
  • Key subfields include machine learning, NLP, computer vision, and robotics.
  • AI is widely used but not yet as flexible as human intelligence across all domains.
Canadian angle

AI is highly relevant to Canadian readers because Canada is a major centre for AI research, education, and commercial adoption, with active work in cities such as Toronto, Montreal, and Edmonton.

Quick questions

What is artificial intelligence?
Artificial intelligence is the field of building computer systems that can perform tasks normally associated with human intelligence, such as learning, reasoning, and problem-solving.
Is AI the same as machine learning?
No. Machine learning is a subfield of AI that focuses on systems learning from data, while AI is the broader field covering many approaches to intelligent behavior.
Where is AI used?
AI is used in language processing, image recognition, robotics, search, fraud detection, predictive analytics, and many other software and hardware systems.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Artificial_intelligence
    Supports: General definition of artificial intelligence and core tasks associated with it.
  2. Encyclopaedia Britannica — https://www.britannica.com/technology/artificial-intelligence
    Supports: Definition of AI, limitations relative to human flexibility, and general scope.
  3. Association for Computing Machinery — https://dl.acm.org/doi/10.5555/1074100.1074138
    Supports: AI as a field of computer science and engineering concerned with intelligent behavior.
  4. Stanford Encyclopedia of Philosophy — https://plato.stanford.edu/entries/artificial-intelligence/
    Supports: Conceptual framing of AI as the study of intelligent agents and philosophical context.
  5. Google Cloud — https://cloud.google.com/learn/what-is-artificial-intelligence
    Supports: Common applications and broad description of AI technologies and methods.
  6. MIT Media Lab — https://www.media.mit.edu/tools/ai-glossary-dictionary/
    Supports: Concise definition of AI and examples of its importance across domains.