It used to have articles which were a bit more scientific and investigatory than others – I particularly remember one talking about how to describe n-dimensional space in a program.
I particularly remember these covers/issues – some of which still look great to me today, thirty years on. I desperately wanted to run the US presidential election program here too, but it used elements of the BASIC language that I simply could not work out how to substitute for from the ZX80′s limited vocabulary (back then most things were targeted at the variety of BASIC found on a Commodore PET).
Hmmm… Fast Fourier Transforms….
And finally – I remember thinking this was a stunning image: