Big and small companies use computers. I guess it has become a necessity to have a computer to automate the whole system. It’s also faster in processing what we need. But one thing that is also needed is the back up of the system. There are times that our hard drives just crash for no reason. If the hard drive crashes, all of the files in there would be lost. It would be so stressful to think about what has happened to a week’s worth of files and that you have to redo everything from scratch. If you don’t have your own back up hard drive, there will be problems getting the necessary data that you need. An option is to use online backup where your important files and documents can be saved. Since your file is online, if there are problems with your computer at the office, you can still try using another computer to retrieve your documents. You can even continue working at home without saving the files to a disc or memory stick which we sometimes forget to bring after we have saved everything.