Memory storage
Memory Storage refers to the hardware used by the computer to store information. There are two types of memory storage available in a computer. One is the storage available inside the computer casing called the Primary Storage like the hard disc. The storage available on the computer's outside in called the Secondary Storage and this is numerous. Examples are like the floppy disc (which is being replaced fast by the USB thumb drive), flash card and CDROM.
Read the following articles to know about the hardware before attempting repair on any one of them.
Hard Disk . CDROM . Floppy Disk .
For a more detailed information on the theory behind these hardware but you dont want to be bogged down by information about repairs , refer to...