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What is graphical system ? Write down its advantages and disadvantages.

A graphical system refers to a system design approach that utilizes intuitive graphical software and readily available hardware devices for designing, refining prototypes, and deploying initial runs. Here are the advantages and disadvantages of graphical systems:

Advantages:

  1. Faster Recognition: Symbols are recognized more quickly and accurately than text. Graphical attributes like shape and color in icons aid in rapidly classifying objects or information.
  2. Faster Learning: Pictorial representations assist in faster learning. Symbols are easily learned, contributing to a quicker understanding of the system.
  3. Efficient Problem Solving: Visual or spatial representation of information is easier to manipulate, leading to faster and more successful problem-solving. Symbols are effective in conveying simple instructions.
  4. Easy Remembering: The simplicity of graphical representations makes it easier for casual users to retain operational concepts.
  5. Contextual Understanding: Displayed objects provide a clear picture of the current context, enhancing user understanding.
  6. Reduced Errors: Concrete thinking reduces opportunities for errors. Reversibility of actions lowers error rates, and error messages are less frequently needed.
  7. Increased Control: Users feel in control as they initiate actions, boosting confidence and system mastery.
  8. Immediate Feedback: Results of user actions are immediately visible, facilitating quick learning and adjustment.

Disadvantages:

  1. Inconsistencies: Differences in technique, terminology, and look among graphical systems and versions can cause confusion due to copyright, legal implications, and evolving interface knowledge.
  2. Present-Centric: Direct-manipulation systems focus on the present, potentially limiting the exploration of historical data or future scenarios.
  3. Unfamiliar Symbols: Symbolic representations may not be as familiar as words or numbers, which people have been exposed to for a longer time.
  4. Window Manipulation Issues: Excessive and repetitive window handling can waste time, disrupting decision-making processes needed for tasks.
  5. Production Limitations: Current technology limits the production of clear and legible symbols, making it challenging to create a universally recognizable set across different technologies.

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