Binary Code

We learnt about binary code today. The first computers are thousands of years old. The abacus was one of the first computers. The definition for a computer is anything that we send we send information to, it processes the information and then gives us information back. The computers we use today are electrical computers. They only understand electrical signals. Computers use binary code which is a base two system. In binary, there are only zeroes and ones. In our number system, we use base ten. So we go up to nine and move one column over. In base two you can only go up to one and then you have to mover to the next place value. Every one or zero is called a bit. Computers string bits together into groups of 8 called bytes. 1000 bytes make up a kila byte. 1000 kila bytes make 1 mega byte. 1000 mega bytes make up a giga byte. Finally, 1000 giga bytes make up a terra byte.