I remember the password wheel.s Three rings and you had to set eachone in order to get the right password. A pain to make - oops!

Others used the "type in word from page 67". The paper was printed on special brown paper - very hard to photocopy

I had a version of Pascal for my amstrad where you had to find the colour in a large grid of colours gievn a row and column to look up - that was a right pain in the arse to do as they dots were quite small.