Which one of these is a good reason for taking care to design a good computer human interface?
Not every user is a computer expert.
Well designed HCIs allow the software to be sold at a better price.
Well designed HCIs use less computer resources.
Well designed HCIs allow the computer to run faster.
Which one of these would NOT be found in a good HCI?
Common short cuts, like CTRL+Z for undo.
Icons that can have specific meanings.
A long command line to achieve a function.
Sounds that convey meanings.
Which one of these is an appropriate measure to reduce the risk of RSI?
Avoid the computer facing a window.
Using a swivel chair.
Having an adjustable monitor.
Taking regular breaks.
Answer TRUE or FALSE to this statement.
The energy wasted by computers can be up to 10 % of an organisation's energy bill. It can be reduced by having stand-by settings.
TRUE
FALSE
Which one of these statements abount HCI design is correct?
Important features should printed in blue font because the eye is least sensitive to the blue frequencies.
Important features should printed in any other colour than blue font because the eye is most sensitive to the blue frequencies.
Bright yellow is particularly attention catching because the eye is sensitive to read and green frequencies.
Any colour will do because the eye is equally sensisitive to all frequencies.
Which one of these is a good reason to include sounds in an HCI?
Users react more quickly to sounds than to visual signals.
Users react more slowly to sounds than to visual signals.
There is no preference. People just like sounds.
The computer reacts to sounds in the same way as a human.
Which one of these statements abount long and short term memories is correct?
Short term memory has a slower access time compared to long term memory, and responds well to patterns.
Long term memory has a slower access time compared to short term memory. Material is committed to long term memory by repetition.
Material is committed to short term memory by use of repetition.
Long and short term memories are stimulated in the same way.
Answer TRUE or FALSE to this statement.
Competence in the use of computers is gained by practice.
FALSE
TRUE
A computer expert produces an in-house solution with an HCI which is very efficient in computer resources, based on command-lines. Which one of the following is most likely to be the result when the system is implemented?
It will be welcomed by all staff.
All staff will enjoy using it after mastering the skills of command lines.
Most staff will want to become computer experts to use it.
Most staff will feel demoralised and will not want to use the system.
Answer TRUE or FALSE to this statement:
Graphical User Interfaces are a problem in modern computers and make them run very slowly.