Positional Nmber Selen ° Octal number Radix=8 Character set: 10, 1, 2, 3, 4, 5, 6, 7 Weight=8n Ex. The decimal number 536 is(536) ● Hexadecimal number Radix=16 Character set: 0, 1, 2, 3, 4, 5, 6, 7,8,9,A, B, C, D,E, F) Weight=16n Ex.(1AD.B)6=1*162+A*161+D*160B*16-1• Octal number – Radix=8 ; – Character set : {0,1,2,3,4,5,6,7} – Weight=8n ; – Ex. The decimal number 536 is (536)8 • Hexadecimal number – Radix=16 ; – Character set : {0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F} – Weight=16n ; – Ex. (1AD.B)16=1 * 162+A * 161+D * 160+B * 16-1