Computer virus and rocket: what they have in common

1. Step 1. Computer virus — is a kind of — Software. A program.
2. Step 2. Software — includes — Database. Software.
3. Step 3. Database — evolved from — Hollerith tabulator. Processing large datasets began with tabulators.
4. Step 4. Hollerith tabulator — uses — Punched card. The 1890 census data was encoded on punched cards.
5. Step 5. Punched card — is made of — Paper. Punched cards are stiff card.
6. Step 6. Paper — is material for — Rocket. The first rockets were paper tubes filled with gunpowder.

Open Evothings