1.2 Microprocessors Flashcards
1
Q
What is a microprocessor?
A
An electronic circuit or chip that can process data, perform calculations and act upon the results by issuing instructions.
2
Q
How is a microprocessor used in the central heating system?
A
- Interprets the values of temperature taken from the heat sensors.
Sends instructions to turn on and off according to the pre-set temperature.
3
Q
What home machines use the microprocessor?
A
- Washing machines
- Microwave
- DVD players
- Remote control
- Burglar Alarm system
- Security light
4
Q
What devices use micro processor in workplace?
A
- Lifts
- Automatic doors
- AC system
- Photocopier
- Barcode reader
- Security and alarm system
5
Q
What is the role of microprocessor in a factory robot?
A
- Gathers info from sensors in the robot’s arm
- Processes this info according to rules in robot’s software
- Issues instructions to motors to guide the robot to conduct its next task
6
Q
Microprocessor in everyday life?
A
- Mobile phones
- Camera
- Traffic light systems
- Cars and aircraft
7
Q
Describe how traffic light system uses microprocessor
A
- Controls sequence of lights from green to amber to red.
- Interprets data from sensors to recognise when a car approaches the traffic light
- Changes opposite set of lights to allow cars from the other direction through.
