Embedded system example "Washing Machine"

In order to explain what is embedded system, it's easy to describe an everyday product that become and embedded system. For this I choose washing machine. Below is a sequence of activity of process that makes a typical washing machine (WM):-

1. Once finish loading all the dirty laundry inside, push START button
2. WM will measure the weight of the laundry to determine the load
3. WM will open the inlet valve to let the clean tab water into the WM
4. Once the water level reach certain level, base on the load measure in step 2, the inlet valve will close.
5. the rotating drum of the WM will move to start washing
6. once finish wash cycle, the outlet valve will open to release the dirty water
7. sensor will detect once all the dirty water been flush out to close the outlet valve
8. the inlet valve turn on to let clean water in for the rinse cycle.
9. once the water reach certain level, the inlet valve will close
10. the rotatiting drum of the WM will move to start rinse cycle
11. once finish rinse cycle, the outlet valve open to release the dirty water
12. sensor will detect once all the dirty water been flush out to close the outlet valve
13. step 8 - 12 will be repeated few times depend on the program setting
14. the rotating drum will move to start spin cycle
15. end of spin cycle, the WM process end. FINISH

All the above mention steps can be done manually but it will defeat the whole purpose of living in this century. The whole process can be fully automated, thank to embedded system. It transform our life to be very very efficient. Time save!!