Hi & welcome, Carlos!  Recently you wrote in a message to alexander koryagin:

CN>  4. FidoNet


           Yes, it's the original spelling of the name.



CN>  5. FIDOnet


           I've seen names of other networks spelled in a similar way... but I believe this generally occurs when the letters preceding "net" are an acronym, i.e. an abbreviation derived from initial letters &/or syllables.

           In the (now defunct) ADAnet, e.g., "ADA" meant "American Disability Association".  "Fido" isn't an abbreviation in this context.  :-)




--- timEd/386 1.10.y2k+