about 2000, my father called me one day while i was somewhere in middle of mountain.. about something going wrong, entering the BIOS-setup of his machine... and in the next 15 minutes i had to recall and imagine all them 6-7 screens of BIOS of his computer, and lead-him-"by-hand", that is, key-by-key... Luckily i had same BIOS on my machine so it was been.. familiar. While even if he was seeing all the text there, it meant nothing to him...
