Barium swallow is a dedicated test of the pharynx, oesophagus, and proximal stomach, and may be performed as a single or double contrast study.arium swallow is a dedicated test of the pharynx, oesophagus, and proximal stomach, and may be performed as a single or double contrast study.
up vote 9 down vote accepted. In Windows Azure Virtual Machine for Windows you can find drive C and D. Drive C is the boot OS disk and the size is actually the size of your VHD you have either uploaded or configured from the Gallery.
Both are logical partition of a disk. C contains program files, OS files, and supporting files for operating system. And D contains User data as Shubham Pandey said. It is good practice install all your programs / Applications in C Drive and to store Your data in rest of the drives.