Hello I'm Michael from 5A
I guess everybody knows
these are the Braille
And Braille is usually used in
a lift or on an information panel
as everybody may has always seen it
on the street or your flat
But today we're not going to talk about
those Braille in the lift or information panel
But I'm going to talk about Braille Display
A Braille Display
or the full term
a refreshable braille display
is an electro-mechanical device for
displaying braille characters
usually by means of round-tipped pins
raised through the holes in a flat surface
Those visually impaired computer users
who cannot use a computer monitor
and keyboard
can use it to read text output or input text to the computer
Well sometimes deafblind computer users may also use refreshable braille displays
As it's shown on the screen
you can see
there'd be one visually impaired computer user
typing words into his computer
which is really convenient and easy
And it also easy and fast to correct the mistakes the users made
as you can see
Meanwhile
the Braille Display would also have some of the functions of a mouse
as you can see this user can choose anything in the computer by using the Braille Display
A Braille Display can really assist and help with the visual disabilities
So this would be one of the greatest information and communication technology in the world
Thank you
