QR codes make up the basic structure of a relational database with columns containing field data and rows containing record information.
Answer:
Voter registration lists, also called voter rolls, are the gateway to voting because a citizen typically cannot cast a vote that will count unless his or her name appears on the voter registration rolls. State and local officials regularly remove—or purge—citizens from voter rolls. In fact, 39 states and the District of Columbiareported purging more than 13 million voters from registration rolls between 2004 and 2006.
Explanation:
This depends on what program you're using. Some programs can only read certain files exclusive to that program, such as .psd files can usually only be read in Photoshop or other adobe programs. Many fields of work (Journalism, the Arts, Design, etc.) ask for .psd files to be converted to either .png, .jpg, or .tiff so that it can be seen on many other platforms.
For images especially, files are more compatible either on a program or printed. for example, .png files are good for storing color data from computer to computer, but if you print a .png file, the quality is poor. hence it's recommended to save files you want to print for designs as .jpeg, because .jpeg can more easily be printed and will then be presented at a high quality.
Sometimes color quality changes depending on CMYK as well but that's a whole other ball of wax.
