Who uses Semaphore?

Related questions

1. In what condition auxiliary flag is set?
2. Why is the flag called Blue Peter?
3. What is ASM NOP?
4. What does NOP mean in history?
5. What is the use of Lea?
6. What is JL in assembly language?
7. What is far jump?
8. What does JMP mean in assembly?
9. What is carry in bit?
10. What is the difference between and & test instruction?

Tags

1. #method
2. #semaphore
3. #transmit
4. #means
5. #flags
6. #messages
7. #towers
8. #between
9. #usually
10. #lights
11. #invention
12. #distant
13. #visual
14. #signaling
15. #before
16. #telegraph
17. #points