Why do we need routing?

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Tags

1. #initially
2. #router
3. #different
4. #essentially
5. #having
6. #routing
7. #networks
8. #started
9. #share
10. #which
11. #single
12. #addresses
13. #between
14. #network
15. #local
16. #using
17. #allows
18. #computers
19. #reason