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.
In 1991, Obama accepted a two-year position as Visiting Law and Government Fellow at the University of Chicago Law School to work on his first book. He then taught constitutional law at the University of Chicago Law School for twelve years, first as a Lecturer from 1992 to 1996, and then as a Senior Lecturer from 1996 to 2004.