Computer Controlled Systems
Computer controlled systems use computers and software to control, monitor, and manage processes, machines, or devices. The effectiveness of computer controlled systems depends on the quality of software, hardware, and input data.
- Robotics in manufacture: Automation of production processes using robots
- Improves efficiency, precision, and productivity
- Production line control: Supervising and managing assembly lines with computer systems
- Ensures quality control and reduces human error
- Autonomous vehicles: Self-driving cars and drones guided by computer algorithms
- Enhances safety, reduces traffic congestion, and increases fuel efficiency
Advantages and Disadvantages of Computer Controlled Systems
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Increased efficiency and productivity (due to working 24/7) |
High initial investment and maintenance costs |
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Greater precision and accuracy |
Job displacement for human workers |
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Ability to operate in hazardous environments |
Dependency on reliable software and hardware |
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Reduced human error and fatigue |
Lack of flexibility and adaptability to unexpected situations |
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Can work with large or delicate items |
Requires costly backup systems |
Worked example
The European Space Agency (ESA) is building a new space telescope to orbit the Earth and search for distant galaxies. The ESA is using computer controlled robots to build the lens of the telescope.
Discuss the advantages and disadvantages of using computer controlled robots rather than humans to build the lens.
[6]
Max 4 of:
Advantages
Robots can work in sterile areas where humans would need protective clothing [1]
Robots can easily be used for transferring large delicate items [1]
Robots can work 24/7 / continuously [1]
Cheaper in the long run/robots not paid [1]
More accurate as the lens needs to be precise / higher quality of lens [1]
More frequent checking of the equipment/lens [1]
They do boring/laborious work [1]
Issues can be found more quicker [1]
Task/job can be carried out far quicker [1]
Max 4 of:
Disadvantages
Very expensive to buy / higher in the short term [1]
Maintenance is very expensive [1]
Difficult to re-program when changes are made [1]
Requires expensive backup systems [1]
They replace skilled workers, leading to de-skilling [1]
They need constant observation which increases the cost of maintenance crews [1]
If something goes wrong, it may be difficult to find the error [1]
Exam Tip
- Some of the advantages/disadvantages listed above don't always apply depending on the scenario. Choose the ones appropriate for the scenario in the question
- You can't get full marks by only focusing on advantages or disadvantages - make sure you know both
- Don't use short answers like 'it's expensive' - explain your answer
