Robotics
Computer Science: Cambridge International GCSE, topic 1.7.2
Robotics
Robotics helps create machines that can perform tasks automatically or with little human intervention.

What is robotics?
- Robotics is a branch of computer science and engineering.
- It involves the design, construction, and operation of robots.
- Robots are used in a wide range of fields to do jobs that are dangerous, repetitive, or difficult for humans.
- They can work automatically or be controlled by humans.
- Examples: factory robots, drones, domestic cleaning robots

Characteristics of robots
- A mechanical structure or framework:
- The physical body of the robot, which allows movement
- Example: wheels, arms, legs
- Electrical components:
- The "brain" and "nervous system" of the robot.
- Sensors collect information from the environment
- Microprocessors process information and make decisions
- Actuators carry out physical actions
- Programmability:
- Robots follow instructions given through computer programmes on how to act and react

Roles and uses of robots
- Industry:
- Robotic arms are used in car manufacturing to weld parts or assemble vehicles.
- Transport:
- Self-driving vehicles and drones are used for deliveries and logistics.
- Agriculture:
- Automated harvesting and crop monitoring can increase farming efficiency.

More roles and uses of robots
- Medicine:
- Surgical robots assist doctors with operations and can deliver medicines in hospitals.
- Domestic settings:
- Robotic vacuum cleaners and smart lawnmowers are used to clean homes.
- Entertainment:
- Robots are used in theme parks and in the creation of special effects in films.
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Advantages of robots
- Robots can perform repetitive tasks with a high degree of precision and speed.
- This reduces human errors.
- Robots can work in dangerous environments that are unsafe for humans.
- Example: Dealing with hazardous materials; Working in extreme temperatures
- Robots can work nonstop without needing breaks or sleep, which increases productivity.
- Their consistent performance leads to more uniform and higher-quality products.

Disadvantages of robots
- The design, purchase, and maintenance of robots can be very expensive.
- As more businesses adopt robots, human workers may lose their jobs.
- A robot can only do what it has been programmed to do – they cannot adapt to unexpected situations.
- If a robot breaks down, it might:
- Stop important operations
- Require a costly specialist to fix it
Test yourself on Robotics
Which of the following is an example of a robot used in a domestic setting?