Your data should be backed up every day in case something happens to your computer. The backed up data should be removed from the office. There are various ways to back up your data:

	Removable hard drives - this is the recommended way of doing backups. For medium sized data bases, smaller drives, such as Zip drives or thumb drives are satisfactory.
	Tapes - this requires special tape software, which comes with your tape back-up drive. This is harder to automate and you must know more about what you are doing.