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.
 President Obama is a graduate of Harvard Law School. Prior to being  elected President he was a US Senator from Illinois and before that  served three terms as an Illinois state senator   .   Barack Obama became president of the United States of America in  2009 and is the current president.Before he became president there  was George W. Bush and Bill Clinton.The name of the U.S. President is Barack Obama. He has held this  position since 2009. The President of the United States of America is Barack Obama. Alabama The President of the United States is Barack Obama.he name of the U.S. President is Barack Obama. He has held this  position since 2009. The President of the United States of America is Barack Obama.