Iconoscope and gutenberg printing press: what they have in common

1. Step 1. Iconoscope — is a kind of — Vacuum tube. An electron tube.
2. Step 2. Vacuum tube — is part of — ENIAC. ENIAC contained about 18,000 vacuum tubes.
3. Step 3. ENIAC — uses — Punched card. ENIAC’s input and output went through IBM punched-card equipment.
4. Step 4. Punched card — is used in — Jacquard loom. Each punched card sets one pass of the pattern.
5. Step 5. Jacquard loom — works like — Gutenberg printing press. An analogy, not proven influence: both set type and a chain of punched cards are a replaceable pattern that a machine reproduces over and over.

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