the number systems

• the denary system is also known as the decimal system
• the denary system is a base -10 system
• denary numbers represent any quantity including whole number, fractions and decimals
• each digit in a denary represents a power of 10, the rightmost digit representing 10^10
• it is necessary to convert data from one number system to another for example from binary to denary to hex
• binary number system is a base-2 system
• binary systems only use 0 and 1
• binary system conversion ex: 12=1100
• hex system is a base-16 system
• the hexidecimal system uses 1-9 and A-F