Released in 1971 and developed at Xerox PARC by Gary Stark weather, a laser printer is a printer that uses laser technology to print pictures on the paper. Laser printers in many cases are used in school, corporate, and other environments that demand print jobs to be finished promptly and in big amounts. The speed of laser printer is very fast and they common in use with high quality and suitable price.
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Martin Cooper (inventor) Inventing handheld cellular mobile phone Making world’s first handheld cellular mobile phone call. Martin “Marty” Cooper (born December 26, 1928) is an American engineer.