Scanner Write for Us
A scanner is a device that scans and records images. It translates the result of this activity into electrical signals that can be processed. The computer scanner is the most popular scanner. This peripheral uses light to convert images (e.g., a document, a photograph, etc.) into a digital file. After obtaining the record, it can be edited and modified on the computer.
Origin
However, the first scanner, developed in 1984, generated low-resolution black-and-white images. Over the years, the quality of the results improved greatly. Today, the scanner is usually integrated into the printer, leading to what is known as a multifunction printer.
Scanning an image is a process that requires a relatively high degree of complexity to obtain the best results, but it can be considerably simplified if we take advantage of the assistance provided by specialized programs. Furthermore, a user without technical knowledge about the image can press a button, and in a few seconds, the capture will be finished, generating a file in the program’s default folder. Others, however, must pay attention to various parameters.
However, one of the essential properties of a scanner is the resolution it is capable of capturing, which we measure in dots per inch (this unit of measurement is known as dpi). This value is of utmost importance for people who want to print their scanned documents and photos and, therefore, must match the capabilities of the printer so that the selected quality can be used.
On the other hand, the color depth (also known as bpp or bits per pixel) refers to the number of bits needed to represent the color of the pixel. The higher the color depth, the more colors the scanner can capture (on monitors, this is reflected in the number of colors it can reproduce).
Despite all the possibilities offered by current technology, the scanner is still a necessary peripheral in practically any activity we carry out, even more so in activities such as graphic design and all areas where images are of preponderant need.
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