CH5- The effects of using IT

Question 1

use of microprocessor controlled devices in the home can have a positive/negative effect on:

Answer 1

1. lifestyle
2. leisure time
3. physical fitness
4. data security
5. social interaction

Question 2

3 examples of labour saving devices (microprocessor controlled)

Answer 2

Any 3 of:
1. automatic washing machine
2. microwaves
3. cookers
4. automatic dishwashers
5. robotic vacuum cleaners
6. bread-making machines
7. smart fridges and freezers
8. security systems

Question 3

3 examples of other microprocessor controlled devices

Answer 3

any 3 of:
1. smart televisions
2. smart speakers
3. smart watches
4. alarm clocks
5. television sets
6. central heating and air-conditioning systems
7. mobile phones and tablets
8. home entertainment systems

Question 4

3 advantages of microprocessor controlled labour saving devices

Answer 4

1. people no longer have to do manual tasks at home
2. more leisure time
3. a human doesn’t have to be present

Question 5

3 disadvantages of microprocessor controlled labour saving devices

Answer 5

1. can lead to unhealthy lifestyles
2. make people lazy
3. potential to lose household skills

Question 6

3 advantages of other microprocessor controlled devices

Answer 6

1. save energy
2. easier to program these devices tha do the tasks manually
3. useful for social interactions

Question 7

3 disadvantages of other microprocessor controlled devices

Answer 7

1. leads to a more wasteful society
2. more complex to operate
3. leaving some devices on standby is very wasteful of electricity

Question 8

know about data security issues and social interactions

Answer 8

📖🖋👍🏼

Question 9

uses microprocessor controlled devices in monitoring and controlling transports

Answer 9

1. monitoring of traffic on motorways
2. congestion zone monitoring
3. automatic number plate recognition (ANPR)
4. automatic control of traffic lights
5. air traffic control system
6. railway signalling system

Question 10

3 advantages of transport monitoring and control systems

Answer 10

1. they are constantly adapting to traffic conditions, so they reduce traffic jams and minimise everyone’s journey time
2. they are more efficient allowing for more regular services
3. traffic offences can be automatically penalised using ANPR

Question 11

3 disadvantages of transport monitoring and control systems

Answer 11

1. a hacker could gain access to the system and cause disruption
2. if it fails the whole transport system could be brought to a standstill.
3. poorly designed systems could compromise safety

Question 12

how do autonomous vehicles work?

Answer 12

they use sensors, cameras, actuators and microprocessors together with very complex algorithms to carry out actions safely. microprocessors process the data from sensors and cameras and send signals to actuators to perform physical actions.

Question 13

3 advantages of autonomous vehicles

Answer 13

1. safer because human error is removed
2. better for the environment as vehicles will operate more efficiently
3. reduced traffic congestion

Question 14

3 disadvantages of autonomous vehicles

Answer 14

1. very expensive to set up
2. hacking into the vehicle’s control system is possible
3. security and safety issues

Question 15

3 advantages of autonomous trains

Answer 15

1. improves punctuality of trains
2. reduced running costs
3. improved safety due to removal of human error

Question 16

3 disadvantages of autonomous trains

Answer 16

1. hacking into the vehicle’s control system is possible
2. does not work well with busy services
3. high capital and operational costs initially

Question 17

3 advantages of autonomous aeroplanes

Answer 17

1. improved passenger comfort
2. reduced running costs
3. improved safety

Question 18

3 disadvantages of autonomous aeroplanes

Answer 18

1. security aspects if no pilots on board
2. emergency situations during the flight may be difficult to deal with
3. hacking into the system

Question 19

health risks from prolonged use of IT equipment

Answer 19

1. back and neck strain
2. repetitive strain injury (RSI)
3. eyestrain
4. headaches
5. ozone irritation