What is a scanner

There are many different devices for processing documentation, one of which is a scanner. A unique device that is able to translate documentation from paper to digital. Devices are widely used due to the irreplaceable functionality that allows you to get an image of any object placed on the scanning surface.

What is a

This is a special equipment that is designed to obtain a digital image of an object placed in such a device. The process of creating a digital image is called scanning. It can be attributed to devices and input and output information.

Device description

Scanners are the most diverse and differ mainly not only in functionality but also in the nature of the objects being processed. It usually looks like a box, with a glass surface under the lid.

Purpose what does

There are several of the most popular types of scanners. Each of them is needed for specific purposes:

1. For photographic film, it processes the negative of a photo or slide, and is intended for image processing. Usually used by people who deal with photography.
2. Laser - designed for remote reading of special barcodes. Usually used in stores for analyzing product labeling. Also, this equipment allows for 3-D projection of the object. It is usually used both in regular stores and in research centers for modeling.
3. Hand held This equipment is designed for manual scanning of small sections of text. Usually used to analyze a bar code or scan documents of small size.
4. Widescreen. They have an impressive size, and allow processing of large volumes of documentation. Typically, large-format scanning is used to digitize drawings, or technical documentation of non-standard formats. It is used both in various educational institutions and in various high-tech production.
5. Book or planetary. This device performs scanning without contacts with the object. Designed to digitize documents that have historical value, and contact with a scanning device can damage their integrity. Used in museums or educational institutions.

Operating principle

A conventional scanner is a rectangular device that has a hinged lid with a glass surface. That is where the document is placed. The mirror system and the optical analyzer are inside and provide a clear reading of the form, color and content of the scanned documentation. Depending on the model, the quality of the resulting image may vary.

Information from the reader comes to the computer via a USB cable connected to the PC. The resulting image can be edited and saved using standard Windows tools.

REFERENCE! The choice of the quality of the resulting image affects not only the clarity of the image, but also the scanning speed. If the detailed information is not a priority, then this parameter should be reduced to make the scanning process faster.