Audio, data, and videos are only a few things we save on our computers today. How would you actually feel if you lost essential documents that were essential to your personal privacy or your job? An external hard drive is required to protect all your documents if your computer or hard drive were to fail. You can take a look at web-based backup where you may backup your documents online in place of an externa1 hard disk. The biggest drawbacks of online data backup is the fact that the user need to be connected to the internet then there is also a recurring monthly fee required. Check out online backup reviews to understand the various categories of online backup storage that are available before deciding. In the following assessment I will be investigating a Western Digital 1TB (terabyte) hard drive instead. A 1 TB hard drive is sufficient to maintain your computer files. There's a small chance you'll run out of room. Normal computers typically come with 500GB hard drives set up as default nowadays, and 1TB is two times that, so you can picture how much data it will hold. 1000 movies can be put on to the hard drive. If that's inadequate, then you can make the decision to obtain a 2TB, 3TB or 4TB hard drive. Of course, it is ineffective to have all of that extra space if you're not using it, and I think that for most individuals 1TB is certainly enough space. The hard drive is really small, so you can conveniently carry it around, especially if you travel a lot.