unit 3 part

Simulation

A computer-generated model of a real system used to study its behavior, based on mathematical representations.

Advantages of modelling

Less expensive, safer, allows trials of different scenarios, and often faster than building a real system.

Disadvantages of modelling

There is always a difference between results and reality; can also be costly.

Online Booking Process

A systematic method involving entering details, checking availability, confirming, and completing payment for a booking.

Advantages of online booking

Prevents double booking, available 24/7, saves travel costs and time, usually cheaper.

Disadvantages of online booking

Setup can be expensive, mistakes can occur easily, crashes may happen, internet access required.

Robotics

The use of machines to automate tasks, particularly in manufacturing processes.

Uses of robotics in car manufacturing

Tasks such as paint spraying, engine fitting, and welding parts together.

Advantages of using robots

Work in dangerous environments, operate continuously, more accurate, higher productivity, and cheaper long-term.

Disadvantages of using robots

High initial and maintenance costs, potential for hacking, replacement of skilled workers, complex error detection.

Drone

An unmanned aircraft that can perform various tasks, often cheaper and safer than traditional manned aircraft.

Advantages of using drones

Cheaper operation, reduced risk to life, can access difficult areas.

Disadvantages of using drones

More complicated repairs, limited range, may lose control signal, and potential distraction.

Communication media

Methods of delivering and receiving data/information via telecommunications.

Satellite communication

A system where signals are transmitted to a satellite, boosted, and sent back to Earth.

Advantages of satellite communication

Good global coverage, faster and safer than cables, portable ground receivers.

Disadvantages of satellite communication

Time delay, can be affected by weather, requires monitoring, and can be impacted by sunspot activity.

Health issues from long computer use

Eye strain, headaches, back pain, neck pain, and repetitive strain injuries (RSI) due to improper usage.

Eye strain protection

Use flat LCD screens, anti-glare filters, adjust brightness, and take regular breaks.

Back pain protection

Sit upright, take regular breaks, and use ergonomic chairs.

Risk of electric shock

Keep wires insulated and avoid beverages near computers.

Fire risk protection

Avoid overloading sockets and prevent equipment overheating.

Tripping hazard prevention

Keep cables managed and consider wireless technology.

Emergency preparedness

Arrange computers in U-shape with space for easy exits during emergencies.