How alphanumeric data can be stored in a computer?

Answer 1

Describe using examples how numeric and alphanumeric data can be coded within a computer system. A computer is not able to work with our alphabet such as A B or C, it will be translated into code. Every key I type on the keyboard gets turned into a coded number witch gets turned into binary code. For example the letter A is 65 witch would be translated into 1000001 or 0110 0101, this second code is Binary Coded Decimal (BCD). That is when the machine breaks each part down into a single unit and works it out with binary code. A = 65 F = 70 K = 75 P = 80 U = 85 Z = 90 B = 66 G = 71 L = 76 Q = 81 V = 86 C = 67 H = 72 M = 77 R = 82 W = 87 D = 68 I = 73 N = 78 S = 83 X = 88 E = 69 J = 74 O = 79 T = 84 Y = 89 Binary Hexadecimal Decimal 0000 0 0 0001 1 1 0010 2 2 0011 3 3 0100 4 4 0101 5 5 0110 6 6 0111 7 7 1000 8 8 1001 9 9 1010 A 10 1011 B 11 1100 C 12 1101 D 13 1110 E 14 1111 F 15 Now all computers are coded with Unicode this is because there are not enough characters in American Standard Code for Information Interchange (ASCII), now with Unicode you can use any language to type in. There are 1,114,112 characters in Unicode. This covers every language and also some strange pictures such as smiley faces and symbols.