Digital Electronics/Mathematic and Logic Operations/Digital Encoder

Digital Encoder Digital Encoder is a Digital Device that use binary number of certain bits to reprepresent information . Examples Example 1 Using two bit binary number we have 4 2 bits binary numbers 00 01 10 11 Let 00 --- 0 01 --- 1 10 --- 2 11 --- 3 Then decimal number from 0 to 3 can be coded as 2 bit binary number . Example 2 Similarly, with 4 bit binary number can be used to code decimal numbers from 0 to 15 as shown below 0000 --- 0 0001 --- 1 0010 --- 2 0011 --- 3 0100 --- 4 0101 --- 5 0110 --- 6 0111 --- 7 1000 --- 8 1001 --- 9 1010 --- 10 1011 --- 11 1100 --- 12 1101 --- 13 1110 --- 14 1111 --- 15 Binary Coding 4 bit binary coded decimal 4 bit binary coded decimal (BCD) is a digital device that use 4 bit binary numbers to represent decimal number from 0 to 15 Construction 7 bit binary coded decimal 7 bit binary coded decimal (ASCII) is a digital device that use 7 bit binary numbers to represent decimal number from 0 to 9 alphabets a to z, A to Z Construction