Human Computer Interfaces (HCI)

Question 1

State the advantages and disadvantages of a command line interface

Answer 1

Advantages:
Tasks can be carried out very quickly
Low system requirements

Disadvantages:
You have to learn all the commands

Question 2

State the advantages and disadvantages of a menu driven interface

Answer 2

Advantages:
Very simple to use
Low system requirements

Disadvantages:
Tasks can take a long time to complete

Question 3

State the advantages and disadvantages of a voice driven interface

Answer 3

Advantages:
Good for people with motor disabilities
Very simple to use

Disadvantages:
Affected by background noise
Some accents are not recognised

Question 4

State the advantages of a touch sensitive interface

Answer 4

Advantages:
No need for keyboard or mouse
Simple to use
Good for people with motor disabilities

Question 5

State the advantages and disadvantages of a biometric device

Answer 5

Advantages:
Cannot lose
Difficult to forge

Disadvantages:
Expensive equipment

Question 6

What is the use of a biometric device?

Answer 6

Fingerprint readers, retina scanners, facial recognition. Often used for security reasons in place of swipe/smart cards

Question 7

State the advantages and disadvantages of a graphical user interface. Give an example

Answer 7

Advantages:
WIMP: windows, icons, menus, pointers)
Customisable
Help tutorials and wizards

Disadvantages:
High system requirements
Some tasks take a long time to do

Examples:
Windows
Mac OS