1. 1

2. Network technology 2

3. Network Card (UTP) 3

4. UTP cable Unshielded twisted pair (UTP) 4 Shielded twisted pair (STP)

5. UTP connection’s scheme 5

6. UTP connectors RJ-45 (UTP) 6 RJ-45 (STP)

7. 7 Coaxial cable

8. 8

9. BNC connectors 9

10. 10

11. 11

12. Optical Fiber cable 12

13. Submarine optical-fiber cable 13

14. Cable’s map (http://www.cablemap.info) 14 First transatlantic telegraph cable – from 1858 year (optical fiber – since 1988) Longest submarine cable – 39 000 km The weight of 1 meter of submarine optical-fiber cable above 100 kg