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.
Barack Obama, in full Barack Hussein Obama II, (born August 4, 1961, Honolulu, Hawaii, U.S.), 44th president of the United States (2009â17) and the first African American to hold the office. Before winning the presidency, Obama represented Illinois in the U.S. Senate (2005â08).