Chapter 1- Fundamentals Of Computer Systems Flashcards
Define the term ‘embedded system’ (2 marks)
An embedded system is a computer system which is part of another device
Give two uses of an expert system (2 marks)
> Medical diagnosis
>Consumer advice
State the three main component parts of an expert system (3 marks)
> Knowledge base
Interface engine
Interface
State two ways that computers are used in medicine (2 marks)
> CAT scans
>Drug lookup
Describe the term ‘data integrity’ (2 marks)
Data integrity means the state of data reflects reality and is fit for purpose
Describe two ways in which data integrity can be compromised (2 marks)
> Malware
>Hardware fault
State the purpose of software testing (2 marks)
The purpose of software is to reveal errors and to ensure that software conforms to specifications
Explain why software still has errors after it has been released (2 marks)
Software is complex and testing takes time
Explain why standards are important in the computer industry (3 marks)
> Reduce costs
Promote a minimum degree of quality
Make learning new software easier
Explain how dejure standards have an impact on learning a new piece of software (2 marks)
They are universally accepted and they make learning easier
State two examples of dejure standards (2 marks)
> TCP/IP
>Unicode
Explain what proprietary standards are (2 marks)
They are widely used standards which are owned by an organisation
Explain what open standards are (2 marks)
These are publicly available standards which are not owned by an organisation
Explain the difference between ethical and legal issues (2 marks)
Ethical is right and legal is by law
State three provisions of a typical data protection law (3 marks)
> Organisations can only collect data for a specified and lawful purpose
Organisations must protect data from unauthorised access
People can request to view data an organisation holds against them
