Pc Usability Issues
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If
you are blind, you cannot see the screen
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If
you have no hands, you cannot use the keyboard or mouse
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If
you have only one hand, you can only use either the mouse or keyboard.
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If
you do not have the technical knowledge, device connection may be difficult.
Cell Phone
Usability Issues
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If the OS is too complex then users may have issues
navigating through the OS
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If the user as bad eye sight then they may find it
hard to see the screen if it is too small and if the text is too small a
size.
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If the user has certain health issues and limited
hand mobility such as arthritis then the user input method may pose various
issues such as small qwerty keyboard wont be usable.
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If the user has bad hearing then it would be hard to
use a phone with low speaker volumes.
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If the user is outdoors in the sun then the screen
brightness must be high to be visible.
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The phone must fit in your hand comfortably and
should not slip.
Digital Camera
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Blindness or partial sightedness can mean using
digital cameras is very difficult as the user can’t or will struggle to see
what is on the screen as well as connecting them to a computer to transfer
files.
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People with physically debilitating conditions may
not be able to hold a camera or push the shutter button.
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Users with conditions such as Parkinson’s Disease
may be unable to hold a digital camera steady.
MP3 Player usability
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Some MP3 players have relatively small screens.
People with limited eyesight
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Buttons and controls may be too small and users with
less mobility on their hands may find it challenging and diffic
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