Banco de dados e stone tool: o que têm em comum

1. Passo 1. Banco de dados — evoluiu de — Hollerith tabulator. Processing large datasets began with tabulators.
2. Passo 2. Hollerith tabulator — utiliza — Punched card. The 1890 census data was encoded on punched cards.
3. Passo 3. Punched card — é feito de — Paper. Punched cards are stiff card.
4. Passo 4. Paper — é material para — Lança de fogo. The barrel of a fire lance is a paper or bamboo tube.
5. Passo 5. Lança de fogo — evoluiu de — Spear. The fire lance was a spear with a tube of gunpowder — the first step to firearms.
6. Passo 6. Spear — tem como parte — Stone tool. Early spearheads were made of stone.

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