Control

Question 1

How does the computer control the output?

Answer 1

When the computer processes the data it may apply rules to it and control an output

Question 2

Give a simple flow diagram of control systems

Answer 2

Sensors read data –> computer processes data –> output

Question 3

What is a feedback system?

Answer 3

A system where the output affects the conditions of the environment

Question 4

Give the advantages and disadvantages of robots?

Answer 4

Advantages:
Repetitive jobs to the same standard 24/7
They can perform tasks in dangerous locations
Can perform heavy jobs
They do not need breaks

Disadvantages:
Expensive initial installation
Can’t adapt to situations
Led to unemployment

Question 5

What is data logging?

Answer 5

Recording results automatically using sensors
The data that has been collected can be processed by a computer system
The software can analyse the data and produce results in different formats, e.g. tables

Question 6

What are the advantages and disadvantages of using ICT in healthcare?

Answer 6

Advantages:
Continuous monitoring 24/7
Automatic alarms
Reduced chance of human error
Nurses time is freed for other duties

Disadvantages:
Initial cost of equipment