1. DEFINE WINDOW  OPERATING SYSTEM  AND  WRITE  ANY OF  ITS  TWO FEATURE?
ANS)  WINDOW  IS THE  MOST  POPULAR  GUI  BASED  OPERATING  SYSTEM  FOR  PERSONAL  COMPUTER AND ITS  TWO  FEATURE ARE AS .
I) IT SUPPORT  COMMUNICATION  THROUGH  THE  INTER NET .
II) IT  IS  EASIER  TO  LEARN  AND  USE  FOR  A  NEW  USER.