Pen and paper assembly? Kids these days... Try going mental!
Real story: sometime in 80s I was in bed with a nasty flu. Pain-in-the-eyeballs flu, 40°C body temp. Could not read, coult not watch TV, could not stand any light lit near me, radio caused booming in me poor head.
So I started programming, mentally, in BASIC. One of the outcomes of this activity was an algorithm that compressed any text to mere three bytes, but that is another story...
Real story: sometime in 80s I was in bed with a nasty flu. Pain-in-the-eyeballs flu, 40°C body temp. Could not read, coult not watch TV, could not stand any light lit near me, radio caused booming in me poor head.
So I started programming, mentally, in BASIC. One of the outcomes of this activity was an algorithm that compressed any text to mere three bytes, but that is another story...
Maybe it was like Checksum, MD5 or SHA.
'ead. Northern much?