1) A digit is either a 0 or a 1.
2) 0,1,2,3,4,5,6,7,8,9
3) The word bit cames from the word binary digit
4) Binary numbers do not use base 10. They use base 2. The digits available in base 2 ore 0 and 1.
5) BASE 10 } 4, 321 = (4*1000)+ (3*100)+(2*10)+(1*1) 
6) BASE 2} 21 = 10101
                     24 = 11000
                     30 = 11110
7) 8 bits make a byte
8) 1000 Bytes = 1 kilo byte
    1000 kilo bytes = 1 megabyte
    1000 Megabytes = 1 Gigabytes
    1000 Gigabytes = 1 Terrabytes

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