Windows and Linux have very different partition naming conventions.
First C: Drive is not a whole disk drive but just one partition. In Linux, drives are often referred to as
/dev/sdb etc. The partitions inside the drives are indicated by the numbered suffix, such as
Second, the partitioned need to be mounted before they can be used in Linux. The place where they are mounted are called mount points. A special mount point is
/, or the root of the file system. This mount point is reserved for Ubuntu system partition, the rough equivalent of Windows
Third, other non-system partitions can be mounted anywhere as in a folder or sub-folder. For example, if you have a partition for music files, you could mount it in your home folder like
Fourth, if your
C:\ partition has a name, Ubuntu will try to use that name to mount that partition. If not, you can make Ubuntu mount it folder that you name. For example, you can create a folder
/media/OldStinkyC_Drive and mount your C:\ partition there! Note, unlike Windows everything in Ubuntu is case sensitive.
Here is a reference of DOS to Linux commands:
Hope this helps