A back up drive for a computer is a storage device that is used to store copies of the computer’s files. This can be useful in the event that the computer’s hard drive fails or is damaged. There are a number of different types of back up drives available, including external hard drives, flash drives, and optical disks.

When choosing a back up drive, it is important to consider the amount of storage space that is needed. External hard drives typically offer the most storage space, while flash drives offer the least. It is also important to consider the speed …