Hello ...
If Safari, iCal, Software Update, and Dashboard are all crashing, there's no need to post multiple crash reports. The startup disk may need repairing.
Launch Disk Utility located in HD > Applications > Utilities
Select the startup disk on the left then select the First Aid tab.
Click Verify Disk (not Verify Disk Permisions)
If repairs are necessary, restart your Mac while holding down the Command + R keys. Let go of the keys when you see the spinning progress indicator. You will see a window with the built-in utilities to repair the disk and reinstall OS X using OS X Recovery
Apple does recommend a high speed broadband internet connection for OS X Recovery.
Message was edited by: Carolyn Samit