7294960
Description
Mind Map by Gladys Mba, updated more than 1 year ago
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Created by Gladys Mba
over 7 years ago
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2h The Model Human Processor
- Portrays user as an information processor
- Developed by Card, Moran and Newd
- Developed by Card, Moran and Newd
- Working memory-RAM
- O- Both are limited
- X- Computer can hold about 8Gb- 16Gb in RAM
whereas humans can only hold about 7 items
in working memory
- X- Human has to regularly retrieve info from
long-term memory making processing much
slower than computers.
- MEMORY
- X- Human has to regularly retrieve info from
long-term memory making processing much
slower than computers.
- This model only considers auditory
and visual inputs and stores
- O- Both are limited
- Longterm memory -
Secondary storage
- O- Both are non-volatile - Information is kept even after
computer is turned off/person goes to sleep.
- X- Computers have no difficulty storing or
retrieving information from secondary storage
- X- However, humans have to go over and memorise
information a lot to store it in long-term memory and have to
practice retrieving it from long term memory
- LEARNING
- LEARNING
- X- However, humans have to go over and memorise
information a lot to store it in long-term memory and have to
practice retrieving it from long term memory
- Humans remember experiences from longterm memory
- O- Both are non-volatile - Information is kept even after
computer is turned off/person goes to sleep.
- Perceptual processors ( sight,
touch, hearing) - Inputs
- Perceptual processor receives data from
sences and sends it to the working memory.
- At first input it is remains in the form of
data and is percieved but not recognised
- User may display initial reaction or a reflex.
This can be based of like or dislike
- PERCEPTION
- PERCEPTION
- User may display initial reaction or a reflex.
This can be based of like or dislike
- At first input it is remains in the form of
data and is percieved but not recognised
- Perceptual processor receives data from
sences and sends it to the working memory.
- Cognitive processors
(thinking) - CPU
- Cognitive processor- Retrieves data for auditory or image stores
=> recognises it using information from longterm memory, =>
sends instruction to motor processor
- The amount of time needed to do this relates to ATTENTION
- The amount of time needed to do this relates to ATTENTION
- CPU- Fetch data from RAM and executes instruction
- Cognitive processor- Retrieves data for auditory or image stores
=> recognises it using information from longterm memory, =>
sends instruction to motor processor
- Motor processor (talking,
typing, moving) - Output
- Motor processor- executes instructions by telling
body parts how to act and moving muscles
- User will take time to react
- User will take time to react
- Output device has their own processors e.g. printers
- Motor processor- executes instructions by telling
body parts how to act and moving muscles
- Timing
- Perception processor time- Receiving data - (50-200ms)
- Cognitive processor time- recognise and retrieve
information and make a decision- (25-170ms)
- Motor processor time- Acting out decision- (30-100ms)
- Perception processor time- Receiving data - (50-200ms)
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