2-2 Operating Your ComputerStarting and Stopping theComputerThere are a number of ways to start and stop the computer.Starting the ComputerYou always start the computer using the power button.A computer starts up with an operating system (OS) existing on the storagedevice such as the hard disk. The computer will automatically load the OSafter you turn it on. This process is called booting.NOTE: An operating system is the platform for all your software applicationprograms to run on. Your computer uses the Microsoft Windows operatingsystem.Stopping the ComputerWhen you finish a working session, you can stop the computer by turningoff the power or leaving the computer in Sleep or Hibernation mode:To stop inthis mode...Do this... To start up orresume againOff Click Start Æ Shut Down … This canprevent loss of unsaved data or damageto your software programs.If the system is locked up because ofhardware or software problems, pressthe power button to turn off thecomputer.Press the powerbutton.