Final Cover - For Printing

BINARY SYSTEM

1. Binary system
   The system which uses only two digits namely 0 and 1 is called the binary system.
   The system which uses ten digits namely 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 is called as the
   denary or decimal system and the system which uses eight digits namely 0, 1, 2, 3, 4,
   5, 6, 7 is called as the octal system. There are some other systems also such as the
   hexadecimal system which uses 16 digits. All the present day computers make use of
   the binary system, thus transforming all the data into the computers through the
   machine language which uses only two digits, namely 0 and 1.


2. Conversion from denary to binary
   A denary number can be converted into a binary number by dividing the given number
   by 2 continuously until the remainder is obtained as either 0 or 1. The remainders
   which are obtained in each step, form the binary equivalent of the given denary
   number.

Eg. : Express 15 as a binary number

∴ 15 = 1 111 2

The magnetic board with embossed braille symbols and written material in braille

depicting the visual layout of the division process will be useful to teach the concept.

Module 78

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