software responsible for the general operation of a computer system, including the operation of hardware, running application software, and file management  ex:  microsoft windows  mac os x
software responsible for the general operation of a computer system, including the operation of hardware, running application software, and file management. examples are windows, linux, android
Morgan Stanley raised its rating on the company to " overweight " from " equal-weight , " saying the beverage maker 's pricing power with bottlers should improve in 2004 .