Human Memory vs Computer Memory

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Human Memory vs Computer Memory

• 20000903 ???

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Introduction

• Patterns of Problem Solving
• by Moshe F. Rubinstein
• Iris R. Firstenberg
• Memory System as modeled by cognitive psychology

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Similarities (1)

• Short Term Memory/Working Memory
• Random Access Memory
• Long Term Memory
• Hard Drive Storage

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Similarities (2)

• Human
• get information into the brain (encoding)
• retain the information (storage)
• get the information back out later (retrieval)
• Computer
• translate input (keystrokes) into an electronic
  language
• permanently store information on disk
• retrieve file/document into working memory, which
  can also receive information from the keyboard

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Similarities (3)

• memory is strengthened with practice
• Depending on the software being used, a computer
  remembers the most common tasks performed and can
  be run quicker and quicker over time.
• Viruses affect memory on humans and computers too
  in similar ways.

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Differences

• human brain can fill in the gaps (deja vu).
• computers work in binary - it is either in memory
  or it isn't.
• computer memory is better when steady,
  unemotional, complete responses are required
  (e.g. real-time and emergency situations when a
  human expert may not operate at peak efficiency
  because of stress or fatigue.)

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Capacity

• Human
• 50100 billion neurons in the brain
• a single neuron does not contain one memory but a
  combination of neurons probably does
• a neuron will be part of more than one memory
• Computer
• steadily increasing up to billions of bytes

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Speed of Retrieval

• Human
• Dependent on the type of information
• decay of information in the human mind can
  distort the information or lose it altogether
  (eventually)
• Computer
• able to recall anything within milliseconds
• stores everything verbatim

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Will computer hardware match the human brain?

• 1 MIPS track a white line
• 10 MIPS smart bombs, cruise missiles,
  self-driving vans
• 100 MIPS moderately unpredictable features like
  roads
• 1,000 MIPS three-dimensional spatial awareness
• 10,000 MIPS find three-dimensional objects in
  clutter
• 100 million MIPS can do the job of the human
  brain's 100 billion neurons

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