Definition of Scanner
The English
term scanner arrived in Spanish as a scanner . It is a
device that is used to scan and record an image . The result of
this activityis translated by the scanner into electrical signals that
can be processed.
The computer scanner or computer scanner is
the most popular. This peripheral uses light to convert images (a
document, a photograph, etc.) into a digital file. Once this file is
obtained, it can be edited and modified on the computer .
The first scanner
of this type was developed in 1984 . It only generated black and
white images, of low resolution. Over the years, the quality of the result
improved a lot. Currently, the scanner is usually integrated into
the printer , resulting in what is known as a multifunction
printer .
A barcode
scanner , on the other hand, is a machine that can "read" a
barcode (a series of lines of different thicknesses and with different spacings
that contain information).
The scanner records the code in
question and sends it as an electrical signal to a decoder that displays the
data. In medicine ,
on the other hand, there are different kinds of scanners. Appealing to
X-rays, magnetic resonances, ultrasound or ionizing radiation, these devices
offer images of the interior of the organism
(organs, bones, etc.).
Studies with scans are very important for the diagnosis and treatment
of numerous health disorders. A body
scanner , finally, is a security device that allows you to
check a person without establishing physical contact. Through high
frequency radio waves, the scanner can show the objects that the individual
carries under the clothes.
