Some storage devices are classed as 'internal' which means they are inside the computer case.
Most computers have some form of internal storage. The most common type of internal storage is the hard disk.
At the most basic level, internal storage is needed to hold the operating system so that the computer is able to access the input and output devices. It will also be used to store the applications software that you use and more than likely, the original copies of your data files.
Internal storage allows the data and applications to be loaded very rapidly into memory, ready…