Guest
This was a physical cassette or disk you gave to someone who owned a ZX Spectrum or C64 (a version for each was sold). On the cassette inlay you could write “TO ??????“ and “From ?????“ like the inside of a Christmas card and when they run it after opening it on Christmas morning on their computer they just type in their name and wah-la :o) Bloody awesome in 1985 lol
