Define a microprocessor.
A small programmable processor found inside computers that accepts digital data and processes instructions to produce output.
What is the Internet of Things (IoT)?
The interconnection via the internet of computing devices embedded in everyday objects, enabling them to send and receive data.
What is a smart device?
An electronic gadget that can connect, share, and interact with its user and other smart devices.
State three advantages of smart devices.
Smart fridges update shopping lists / Lost items can be located / Smart baby monitors track breathing / Home CCTV increases security / Smart thermostats save energy / Fitness trackers monitor activity / Save time and create leisure time / Enable remote communication.
State three disadvantages of smart devices.
High initial cost / Depend on internet which may fail / Can be hacked / Encourage indoor, sedentary lifestyle / Can lead to laziness / Less physical activity / Reduce social interaction.
What is an ECU in a car?
Electronic Control Unit; a device responsible for overseeing, regulating, and altering the operation of a car’s electronic systems.
Give two safety functions of an ECU.
Anti-locking Braking System (ABS) / Electronic Stability Control (ESC) / Adaptive Cruise Control (ACC).
What does ABS stand for and what does it do?
Anti-locking Braking System; prevents wheels from locking during braking to maintain stability and prevent skidding.
What is Adaptive Cruise Control (ACC)?
Maintains correct distance from car in front and automatically applies brakes if it slows down, using a video camera.
Define Intelligent Transport System (ITS).
The use of communications, computers, control, and sensing devices to improve safety and efficiency of traffic movement through real-time information.
State two ways ITS maintains optimum traffic flow.
Control of traffic light systems / Informing travellers about travel times, accidents, delays / Informing about bus arrivals and seat availability.
State two advantages of ITS.
Improves traffic efficiency by minimizing problems / Reduces travel time and enhances safety.
State two disadvantages of ITS.
Expensive to implement / May malfunction or break down / Relies on surveillance, impinging on privacy rights.
What is RSI?
Repetitive Strain Injury; pain in muscles, nerves, and tendons caused by repetitive movement and overuse.
State two ways to reduce the risk of RSI.
Adopt good posture / Use ergonomic keyboard / Take regular breaks / Use mouse as little as possible.
What causes eye strain when using computers?
Staring at screens for long periods, improper brightness, unsuitable lighting.
State two ways to reduce eye strain.
Take regular breaks / Adjust monitor brightness and contrast / Use suitable font and icon sizes / Use suitable room lighting.
State two ways to reduce the risk of headaches from computer use.
Take regular breaks / Work in properly lit area / Reduce screen glare / Clean the display.
How can back pain be reduced when using computers?
Adjust chair to suit body / Adjust screen height and angle / Adjust desk position.
State two ways to prevent back injuries when moving equipment.
Reduce twisting / Plan lift to minimize distance / Avoid lifting from floor or above shoulder height / Ask for help.
What physical safety risk is associated with trailing wires?
Trip hazard.
How can the risk from trailing wires be reduced?
Use cable ducts / Cover wires / Use wireless connections.
State two ways to reduce the risk of electrocution.
Check wire insulation regularly / Do not allow drinks near computers / Check equipment regularly.
How can the risk of heavy equipment falling be reduced?
Use strong desks and tables / Ensure hardware is not close to edge.
