Shoutbox

ok this morning i wokr up and noticed that the kewyboard and mouse were not working on my computer ...so i turned off the computer and unpluged then and pluged them back in.  then i turned on the computer and the computer just makes these loud beeping noises...the moniter doesnt show anything on the screen or anything...what happened to my computer????  please help me right now im on my sis's laptop so ill be on here waiting for an answer...thanks