Difference Between Indicator and EA

 

What is the difference Between Indicator and EA ?

 
1389: What is the difference Between Indicator and EA ?
Indicators put values in buffers and the system draws lines on the chart using the values.
EA's trade.
 

Indicators can't make trades operations.

 
SDC: Indicators can't make trades operations.
and EA's can't draw lines on the chart, only put objects there.
 
What is ALLOW  DLL IMPORT  & Allow External Expert IMport ?
Reason: