The computer only understands 0 and 1, because 1 means on and 0 means off , which is a problem as 0 and 1 are not the only numbers in the world, and we don’t even have a single letter. So we have to talk to the computer in a way it can understand, by using 0 and 1.

There are 3 ways to write a number when on the computer :

• Denary

  • normal numbers

    • 3,

    • 285

• Binary

  • numbers that use only 0 and 1

    • 001101

    • 1110110

• Hexadecimal

  • numbers that can simplify a binary or denary number

    • 2C

    • 3K

HEX

All hex numbers have a bace of 16, for if you see 1 in hex, it means 16, and iff you see 2 in hex it means 32 ( 16 x 2 ). however, after the number 10, the numbers start changing to letters. so 10 =A 11=B 12=C etc

BINARY

Binary work with 8 sections. these sesctions can either be 1 or 0. 1 means on, and 0 means off. but each section has a differnt number behind it, these numbers are all going up in the square numbers. so the 8 numbers are 1 2 4 8 16 32 64 128

The numbers can be shown as a 0 or a 1. All the numbers shown as 1 will be added together and used to find the actual number.

CONVERTING