The heart of an optical scanner is a light sensor.

What is in the heart of an optical scanner?

The light sensor system used in optical scanners is the same as in digital cameras and camcorders.

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

What type of sensor is used in optical fingerprint scanners?

What does a fingerprint scanner do?

Укажите правильный перевод scanner:

Укажите правильный перевод light pen:

What are the disadvantages of optical scanners?

A personal USB fingerprint scanner costs more than $1000.

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