"Data conversion" is changing data from one file or database format to another. It may also require code conversion between ASCII and EBCDIC.
"Graphics conversion" is changing from one vector or bitmapped file format to another. See graphics conversion
"Media conversion" is changing storage media such as from tape to disk, or hard disk to flash memory. It may also refer to the conversion from analog to digital media. See digital converter
"Program conversion" is changing the programming source language from one dialect to another or from one platform to another.
"Computer system conversion" is changing the computer model and peripheral devices.
"Information system conversion" requires data conversion and either program conversion or the installation of newly purchased or created application programs.
See conversion filter
and image filter
See also conversion rate