4. Advantages Disadvantages
They allow us to enter in correct The Qwerty and Dvorak
data, checking the monitor as we keyboards ease depends on the
go along user.
Data can be entered quickly It isn’t as quick as using a MICR or
OMR.
It is a strong device (Robust) Takes up space.
The concept keyboard can be of
particular use to people with
disabilities
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Devices
5. Advantages Disadvantages
They take up less space and Due to their small size,
are easy to carry around. entering the numbers may be
difficult.
Easier to hide them in case of
entering a PIN
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Devices
6. Advantages Disadvantages
It is faster to select an option using It is easy to damage them.
a mouse as opposed to a keyboard.
They increase the speed of It may be difficult for a person with
navigation disabilities.
They take up less space compared They take up more time if you were
to keyboards. to enter long passages of data.
Their purpose is to make choices
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from a menu; clicking.
Devices
7. Advantages Disadvantages
Like a mouse, it allows you May be found difficult for
to quickly chose an option. people to use.
Again like a mouse, it Difficult to control as they
allows quick navigation. are sensitive.
Hand no wire to them, built Again like a mouse,
into laptops. entering data with a lot of
words can be difficult and
time consuming. Back to Input
Devices
8. Advantages Disadvantages
Don’t require the same When a button is not present
amount of control as a mouse. to do a specific action is not
present, a problem arises.
Easier for people with Slower when selecting
disabilities options.
Accuracy of where the pointer
is on the screen can be
increased.
Fixed into position Back to Input
Devices
9. Advantages Disadvantages
Can be various distances from the People suffering from RSI will not
device while still being able to find it easy to use.
operate it.
Beneficial to people who are unable Any obstruction in the pathway of
to walk with ease. the infrared signal from the remote
to the receiver could result in no
response from the device.
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Devices
10. Advantages Disadvantages
It is faster to choose an Like a mouse and tracker
option using a joy stick. ball, it is difficult to use
when it comes to typing
long passages.
Are able to control objects Difficulty may arise when
in 3D. trying to control the
pointer.
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Devices
11. Advantages Disadvantages
Faster entry of option Screen is flat so continual
use may result in RSI.
Much more easier to select
your option
Much user friendly for
people with disabilities
Less likely to select an
incorrect option. Back to Input
Devices
13. Advantages Disadvantages
Images can be stored and Limited Accuracy
then later be edited.
Using OCR saves time rather
than typing up the whole
document again
Easier to scan a bar code
rather than type it up.
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Devices
14. Advantages Disadvantages
Sound can be altered whilst Voice recognition is not as
recording it. reliable as inputting text via a
keyboard.
It is much easier and much
faster to input text as speech.
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Devices
15. Advantages Disadvantages
It is easier and faster to Errors are common.
enter data this way rather
than typing up the whole
thing.
Handwriting may not
always be recognised.
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Devices
16. Advantages Disadvantages
It increases the speed. You Expensive.
can scan the numbers on
the barcode rather than
typing them up.
It is also more accurate
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Devices
17. Advantages Disadvantages
Can quickly be turned on Limited facilities
Provide elders the opportunity to Not portable
stay in contact with their friends
and family.
Software is also limited.
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Devices
MUHAMMAD GOHAR NAZIR 10-E
Ergonomic keyboards are now coming into common use due to the increase in number of people who use the computer. Their purpose is to prevent RSI whilst typing. This is aided by the shape of
