What are my hardware choices?
Where should I run the software?
What happens in an EMV transaction?
Do I still have any control of the transaction?
What are Terminal Action Codes?
Do chip cards have BIN ranges?
 

Do I have any control of the transaction?

Not in the same way. The magnetic stripe is dumb and takes no active part in the transaction other than being a source of read-only data. Conversely the chip has intelligence, can establish a secure link with the issuer* and makes the ultimate decision to approve or decline the transaction**. The retailer has some control with floor limits and Terminal Action Codes(TACs), [see: what are terminal action codes?]. Floor limits are no longer hard limited: the nearer to the floor limit the more likely to go on-line. Control effected by TACs is limited.

* See step 8 of: what happens in an EMV transaction?]
** See step 13 of: what happens in an EMV transaction?]

 
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