Topic 9 Human - Computer interfaces (HCI)

Question 1

Graphical User Interface (GUI)

Answer 1

Features: Windows, Icon & Menu pointer

e.g. Children’s website

+ Easy to use as no need to know commands
+ User friendly

• More memory needed
• More processing power needed
• can slow down users

Question 2

Form Driven Interface

Answer 2

Features: Step by step manner

E.g. Making an email account

+Uses validation

Question 3

Natural language interface

Answer 3

+No need to use sophisticated vocabulary
+ Very easy to use

• Can be easily confused
• Can misinterpret

E.g. Google

Question 4

Voice Driven Interface

Answer 4

Converts speech to text

+ Quicker than typing
+ Suitable for disabled

• Background noise
• Has to be taught to understand you

E.g. SAT NAV set a destination while driving

Question 5

Command Line Interface

Answer 5

Suitable for experienced users

+ fast to execute
+ Needs very little memory

• Must know commands to use it
• A lot of typing

E.g. expert can use it to find information about a network

Question 6

Game Playing device

Answer 6

E.g. A steering wheel to control a car in game

+Makes the game more realistic

Question 7

Menu-driven Interfaces

Answer 7

A user is presented with options to choose from

+ Very easy to use

• Only suitable where there are only a few items to select