What is scaling up and scaling out?

Related questions

1. What does scaling horizontally mean?
2. What's a scalable business?
3. What does highly scalable mean?
4. Why NoSQL databases are horizontally scalable?
5. What is a SaaS Pricing Model?
6. Is horizontal scaling cheaper?
7. What applications are scalable?
8. What is scalable distributed?
9. What is scalable pricing?
10. What is scalable platform?

Tags

1. #continue
2. #scale
3. #state
4. #server
5. #needs
6. #resources
7. #vertical
8. #reach
9. #example
10. #adding
11. #system
12. #certain
13. #scaling
14. #level
15. #database
16. #existing
17. #performance
18. #additional
19. #desired