What are the most common methods to get an image of somebody's finger?

A fingerprint scanner needs to get an image of your finger to compare it with the others on record.

Capacitive scanners can sometimes be fooled by a mold of a person's finger.

What happens when you place your finger on a glass plate of an optical scanner?

The most exotic methods to take fingerprints are optical scanning and capacitance scanning.

Укажите правильный перевод in common:

Up until recently computerized fingerprint scanners were a very common technology.

What health problem is common among people who spent a lot of time sitting at computer desks?

Верно ли следующее утверждение:

The plethora of modern programming languages does not have a common evolutionary background.

Верно ли утверждение:

Back problems are common among people who spent a lot of time sitting at computer desks.

What will be a problem until common standards and protocols emerge for machine-to-machine and wireless sensor communications?