Question

what is principal on which braille sysrem depend​

Answer 1

Answer:

This is in contrast to the International Braille Music Code, where the braille depends on the meaning of the inkprint music. Thus a knowledge of music is required to produce braille music.

The Code is intended to convey as accurate an impression as is possible to the braille reader of the corresponding printed text, and this is one of its principal features. When the braille reader has a clear conception of the corresponding printed text, the area of communication between himself and his teacher, his colleagues, his associates, and the world at large is greatly broadened. A test of the accuracy with which the Code conveys information from the print to the braille text is to effect a transcription in the reverse direction. The amount of agreement between the original printed text and one transcribed from the braille is a measure of the Code's accuracy.

Answer 2

Braille used by people who are visually impaired .

It I'd traditionally written with embossed paper.

Braille users can read computer screens and other electronic supports using refreshable braille displays .

They can write braille with the original slate and stylus or type it on a braille writer , such as a portable braille notetaker or computer that prints with a braille embosser .

Braille has several languages .

Braille was created by Louis Braille .

It was created by the year 1824 .