What does form factor ATX mean?

Related questions

1. Is a bigger power supply better?
2. What is the difference between ATX and micro ATX?
3. Is micro ATX better than ATX?
4. Will Micro ATX fit in full tower?
5. What is ATX short for?
6. What does SFX mean in golf clash?
7. What does SFX makeup mean?
8. What does SFX PSU mean?
9. Can a micro ATX fit on a ATX?
10. What is the difference between ATX and ITX?

Tags

1. #sockets
2. #superseded
3. #allowing
4. #technology
5. #extended
6. #expansions
7. #motherboard
8. #layout
9. #advanced
10. #plugged
11. #definition
12. #memory
13. #rotated
14. #degrees
15. #length
16. #design