What is difference between epic user stories & tasks?

Related questions

1. Who should write user stories?
2. What is a bug Jira?
3. Why is it called Trello?
4. What is atlassian tool?
5. What is a Jira Story vs task?
6. What are Jira issues?
7. Is trello an agile tool?
8. What is the Atlassian stack?
9. How do you define a use case?
10. What technology does Jira use?

Tags

1. #estimate
2. #estimated
3. #further
4. #needs
5. #considered
6. #tasks
7. #story
8. #break
9. #requirement
10. #essentially
11. #testers
12. #multiple
13. #allow
14. #broken
15. #develop
16. #stories
17. #enough
18. #simply
19. #detail
20. #large
21. #developers