Applications of ICT Flashcards
Applications of ICT:
Control Systems
What are the advantages of control systems?(5)
- Can operate 24/7
- No need to pay employees
- Can easily reprogram the devices to perform a different task
- More accurate than humans
- Can react quicker than humans to environmental changes
Applications of ICT:
Virtual Reality
What is virtual reality?
When computers are used to create an artificial environment that users can interact with as if it was real
Applications of ICT:
What is this?
• An ICT system that uses Artificial Intelligence (AI) to make decisions
• A good expert system will match the knowledge and expertise of a human expert in the same field
an expert system
Applications of ICT:
Measuring systems
What is this?
- Measurements can be taken continuously
- Measurements are accurate
- Doesn’t require human presence
- Can raise an alarm for extreme data points
- Graphs can be produced automatically from the data
- Can work in environments humans usually couldn’t
the advantages of measuring systems
Applications of ICT:
Control Systems
What are these?
- Household appliances, e.g. washing machine
- Central heating system
- Chemical process control
- Greenhouse environment control
4 areas where control systems are used
Applications of ICT:
Expert Systems
What is this?
- Lack of common sense, human experts can make judgements based on life experience
- Cannot read body language
- System is entirely dependent on the rules being correct
three disadvantages of expert systems.
Applications of ICT:
Virtual Reality
Describe three uses of virtual reality other than gaming.
- Allowing architects to walk around their design to get a better idea of what they are doing
- Training soldiers in combat
- Training surgeons on virtual patients
Applications of ICT:
Control Systems
Name 4 areas where control systems are used
- Household appliances, e.g. washing machine
- Central heating system
- Chemical process control
- Greenhouse environment control
Applications of ICT:
Measuring systems
What are these?
- Temperature - Central heating system
- Light - Light levels in a greenhouse
- Infrared - Detecting an intruder
- Pressure - Counting vehicles in/out of a carpark
- Motion - Detecting movement in a virtual reality system
- Sound - Detecting sounds in a burglar alarm system
6 types of sensor and a use for each sensor
Applications of ICT:
Expert Systems
Give three examples of uses of expert systems.
- Medical diagnosis
- Chess games
- Providing tax advice
Applications of ICT:
Virtual Reality
What is this?
- Allowing architects to walk around their design to get a better idea of what they are doing
- Training soldiers in combat
- Training surgeons on virtual patients
three uses of virtual reality other than gaming.
Applications of ICT:
Measuring systems
What are these?
- Equipment is expensive to acquire and set up
- It can be difficult and expensive to fix a fault
- Computers may not be able to respond to unusual circumstances
the disadvantages of measuring systems
Applications of ICT:
Control Systems
What are these?
- Initial cost is very high
- Equipment may malfunction, expensive to repair
- Fewer people needed, so could lead to unemployment
`the disadvantages of control systems
Applications of ICT:
Expert Systems
Describe three disadvantages of expert systems.
- Lack of common sense, human experts can make judgements based on life experience
- Cannot read body language
- System is entirely dependent on the rules being correct
Applications of ICT:
Virtual Reality
What is this?
- Eye goggles - these produce the 3D images that make up the artificial world, slightly different views are projected into each eye to make it look 3D
- Special gloves - they detect your hand and finger movements which are input into a computer to be processed
- Headphones - these control what users hear, and can change the location and volume of sound to project where they are coming from
- Powerful computer - a very powerful computer is needed to create the virtual environment and to process/output the necessary data
the equipment needed for virtual reality
Applications of ICT:
Measuring systems
What is this?
- Weather stations to gather weather data from the environment
- Measuring vital signs in a hospital
- Measuring pollution in rivers
3 uses of measuring systems
Applications of ICT:
Virtual Reality
What is this?
- Improved medical surgeons - they can be trained using virtual patients, allowing lots of practice without real risk
- Larger and stronger buildings - allows architects to walk around their design and check for potential errors, and also allowing virtual buildings to be tested against natural disasters
- Training in dangerous situations - can be used when it is impossible to practice in the real thing
- More realistic education - can allow students to learn in a much more interactive way, allowing them to retain more knowledge
four examples of useful applications of virtual reality.
Applications of ICT:
Measuring systems
What is an ADC?
an analogue to digital converter (ADC)
Applications of ICT:
Control Systems
What are these?
- Can operate 24/7
- No need to pay employees
- Can easily reprogram the devices to perform a different task
- More accurate than humans
- Can react quicker than humans to environmental changes
the advantages of control systems
Applications of ICT:
Expert Systems
Describe the three components of an expert system.
- The user interface - this allows the user to communicate with the expert system
- A knowledge base - this is the information about the area of expertise, it contains facts and rules to be able to make decisions like a human
- Interface engine - uses the knowledge base to make decisions and come to a conclusion using the user provided information
Applications of ICT:
Virtual Reality
Describe four examples of useful applications of virtual reality.
- Improved medical surgeons - they can be trained using virtual patients, allowing lots of practice without real risk
- Larger and stronger buildings - allows architects to walk around their design and check for potential errors, and also allowing virtual buildings to be tested against natural disasters
- Training in dangerous situations - can be used when it is impossible to practice in the real thing
- More realistic education - can allow students to learn in a much more interactive way, allowing them to retain more knowledge
Applications of ICT:
Measuring systems
What are the advantages of measuring systems? (7)
- Measurements can be taken continuously
- Measurements are accurate
- Doesn’t require human presence
- Can raise an alarm for extreme data points
- Graphs can be produced automatically from the data
- Can work in environments humans usually couldn’t
Applications of ICT:
Measuring systems
What are the disadvantages of measuring systems? (3)
- Equipment is expensive to acquire and set up
- It can be difficult and expensive to fix a fault
- Computers may not be able to respond to unusual circumstances
Applications of ICT:
Expert Systems
What is this?
- Fewer mistakes than human experts
- Faster to train than human experts
- Cheaper to use than employing a human expert
- More expertise than a single expert
three advantages of expert systems.
