It is not region-dependent but language dependent and even yet I don't think the distinction is universal. The article is written in english which is important here.
Besides, many Mexican people will roll eyes if people say they are not from north america, complain if they are described as central americans yet embrace the idea they are part of latin america which obviously Suriname, France or Guyana aren't part of. OTOH people from europe will usually say Mexico are part of central america. Some historians would say that only one part of Mexico is part of central america (usually called Mesoamérica).
So the answer is "it's complicated" but I tend to steer towards how people living there describe themselves.
> The article is written in english which is important here.
From said article:
> This paper is a translation of the original paper in Spanish “Computadoras Mexicanas: Una Breve Reseña Técnica e Histórica” by Daniel Ortiz Arroyo, Francisco Rodríguez Henríquez, Carlos A. Coello Coello
Not wanting to argue forever but isn't the job of the translator to adapt the text to the language used? Unless we read original version we can't know for sure which word they used.
EDIT: it is actually available and they phrase it pretty much the same way:
https://www.ru.tic.unam.mx/bitstream/handle/123456789/1415/a...
"esta fecha marca un hito en la historia de la informática en Latinoamérica, pues la IBM-650 fue la primera computadora electrónica en operar en este continente, al sur del río Bravo."
Given the authors are mexicans and my experience with mexican people, I still believe they mean north america when they say "continente". There is a reason the concept of panamericanismo/pan-america exists to describe something that has to do with all american countries. But I agree how confusing it can be for someone living in another country where they mean continent as the whole uninterrupted piece of land inbetween the pacific and the atlantic ocean.
I am confused now. Are you arguing then that the distinction is dependent on region and not language? Because that is precisely what I said in a previous comment.
My guess it is both based on both your link and my experience. My experience is limited to Mexico. I can't speak for others and it could very well be that the notion of continent in Mexico, and for example Chile or any other latin american country may vary.
Besides, many Mexican people will roll eyes if people say they are not from north america, complain if they are described as central americans yet embrace the idea they are part of latin america which obviously Suriname, France or Guyana aren't part of. OTOH people from europe will usually say Mexico are part of central america. Some historians would say that only one part of Mexico is part of central america (usually called Mesoamérica).
So the answer is "it's complicated" but I tend to steer towards how people living there describe themselves.