Backing up datas

Just want to give a tip here.If you want to put up a business,a company or just a store,your computer needs of a tape drive.These tape drives back up and do the archiving of all the datas and infos of all the transactions made.It store the old datas for example the company accounts,payments,salaries,taxes to name a few and to archives all the activities of each year.It is really safe to have these because if ever the computer crashed,you can still bring back or retrieve all.