IBDP CS Control Systems

What is a central system in distributed computing?

• A system with multiple servers

• A system with a single server

• A system with no server

• A system with equal and independent nodes

What are the pros of distributed computing?

• Higher cost and performance

• Higher reliability and scalability

• Higher network bandwidth and security

• Higher software complexity and control

What is an embedded system?

• A computer system with a dedicated function within a larger system

• A general-purpose computer designed for flexibility

• A computer system with real-time computing constraints

• A computer system with hardware and mechanical parts

What is a key characteristic of an embedded system?

• Flexibility and wide range of end-user needs

• Optimization for size and cost reduction

• Dedication to specific tasks

• Inclusion of hardware and mechanical parts

How does a distributed control system differ from a central control system?

• Distributed control systems have multiple servers

• Central control systems have equal and independent nodes

• Distributed control systems have no server

• Central control systems have higher software complexity

What are examples of control systems?

• Industrial control systems and automatic doors

• GPS systems and washing machines

• Traffic lights and chemical production lines

• All of the above

What is the difference between open loop and closed loop control systems?

• Open loop systems have feedback, closed loop systems do not

• Open loop systems have inputs, closed loop systems do not

• Open loop systems have outputs, closed loop systems do not

• Open loop systems have inputs and outputs, closed loop systems have feedback

What is an example of a feedback loop in a control system?

• Setting a temperature on a thermostat

• Sensing a drop in temperature and putting on a jacket

• Controlling the speed of a vehicle

• All of the above

What is the purpose of a cycle switch in a washing machine?

• To determine the duration of different parts of the cycle

• To control the temperature and pressure

• To agitate the clothes and remove water

• To rinse out the soap and drain the water

What is the main function of a sensor in a control system?

• To detect or measure a physical quantity

• To record values and respond to them

• To convert input energy into output energy

• To optimize the size and cost of the product