What is binary?
A bit is a single binary digit, the example above is made of 8 bits. Computers store and process information using bits. In fact 8 bits make up a byte. A binary number is made up of only 1's and 0's. For example 10110100 is a binary number. There are no 2's, 3's, 4's 5's, 6's, 7's, 8's, or 9's in binary.
Most of the information stored in the world today is in binary. Your music, movies, photos and documents are all just 1's and 0's lot's and lot's of them.
convert decimal to binary
To convert a Decimal number to Binary just keep dividing it by 2, if the division has a remainder take it out and set it aside, if not record a 0 for that line. Once your decimal number reaches 0 it is time to stop. The binary number is then read as the remainders from the bottom up.
convert binary to decimal
To convert Binary to Decimal we first assign each bit a value starting with the bit on the far right, it is the 1's. The next bit is 2's then 4's, 8's, 16's and so on doubling each time until each bit is assigned a value. The decimal number is simply the sum (added up) of all the bit values with a 1.