Question

How many combinations can be made by using 6 dots in Braille script?
A. 64
B. 63
C. 61
D. 62

Answer 1

Hint: Basically, Braille is made up of cells. Each Braille cell is a combination of 6 raised dots that are arranged in two parallel vertical columns each having three dots (like the number 6 on a dice). 3 dots arranged vertically and 2 dots horizontally. A dot may be raised at any six positions. The raised dots represent the letter of the alphabet.

Complete answer:
The Braille system is created by Louis Braille. He lost his eyesight at the age of three years. He himself a visually challenged person developed a system for blind and visually challenged people. The Braille system is a tactile reading and writing system used by blind or visually challenged people.
The invention of the Braille font, which is made a little raised from the surface of the paper, so that it can be touched and felt, brought revolution in communication among visually challenged people. Braille may be produced using a slate and stylus in which each dot is created from the back of the page, by hand. It may also produce on a Braille typewriter or a Braille embosser, attached to it.
The Braille system has 63 dot patterns or characters. Each character represents a letter, a combination of letters, a number, comma and full stop symbols or a grammatical sign. The dot in a Braille cell is numbered from 1 to 6 based on its position. The positions are numbered 1, 2 and 3 from top to bottom on the left, and 4, 5 and 6 from top to bottom on the right. Counting the space in which no dots are raised, 64 combinations are possible using one or more of these 6 dots. All Braille codes are read by moving hands from left to right.

So, the correct answer is “Option A”.

Note:
The people who are unable to see are called visually challenged people. The other senses of these people like touch, smell, and hearing are very strong. Optical aids (bifocal lenses, contact lenses, magnifiers and telescopic aids) and non optical aids (tape recorders, talking books, cassettes and audio CDs) help them to listen and write the text. They can learn the Braille system by starting with letters, then special characters and combinations.