Category:Information systems (nonfiction)

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Pages in category "Information systems (nonfiction)"

The following 8 pages are in this category, out of 8 total.

C

E

Electrical telegraph (nonfiction)

I

Instruction set (nonfiction)

S

Semaphore telegraph (nonfiction)

T

Telephone switchboard (nonfiction)

Media in category "Information systems (nonfiction)"

The following 3 files are in this category, out of 3 total.

Claude Chappe.jpg 450 × 600; 95 KB
Signaling by Napoleonic semaphore line.jpg 566 × 480; 76 KB
Telegraph.jpg 640 × 480; 50 KB

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