You see computing was for most of us was very much offline with programs run from machines and only business had limited web content such as Prestel which we used in the travel business for offers and booking and generally we used things like word processing and limited gaming at the end of the eighties. In the seventies you pretty much had to type on to stencils and use a duplicator to run of copies of the school magazine.
Today the new 12 year old me would us my smartphone to take the pictures that we'd edit using a photo editing program before adding to with text to a web page of our school magazine which would be on a part of our schools site.
We'd read it using our laptops or on our smartphones so when any of us were poorly or in hospital we'd have instant access to it.
In much the same way we'd send texts to each other enquiring about each other and what we thought of Miss Penrose's Geography class and Mr Smith's new car or add pictures when we're away which like sending a postcard but it's a image we took ourselves.
That's what the new 12 year old me would be doing today.