Hello,    The computer uses the binary system because the information in a computer is actually electrical pulses (on/off) And because of that we use 0 (off) and 1 (on â¦) to make it easier for us to calculate it :)    Actually, we don't really have a choice in using the binary system.es, Binary literally means 2 digits (0 and 1) - so 10011 (base 2) is equal to 19 (base 10) (Base 10 is what people use in everyday math; Base 2 is what computers use.).
He was a member of the Illinois Senate from January 8, 1997 - November 4, 2004: seven years.
The United States Senate career of Barack Obama began on January 4, 2005 and ended on November 16, 2008.He resigned his seat in the Illinois Senate to serve and would resign upon being elected President of the United States.Obama won the seat in an election against Alan Keyes who replaced Republican Primary election winner Jack Ryan.he United States Senate career of Barack Obama began on January 4, 2005 and ended on November 16, 2008.