Magnetic-core memory e paper machine: o que têm em comum

1. Passo 1. Magnetic-core memory — faz parte de — Mainframe. Magnetic-core memory.
2. Passo 2. Mainframe — utiliza — Punched card. Programs were entered on punched cards.
3. Passo 3. Punched card — é feito de — Paper. Punched cards are stiff card.
4. Passo 4. Paper — utiliza — Paper machine. Industrial production.

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