CPT stands for “Computer-To-Plate” can be an imaging technology utilized in modern printing processes. Within this technology, a picture produced in Desktop-Publishing software is output straight to a printing plate. It is the advanced technology which is being used.
This compares with the older technology, computer-to-film (CTF), where the computer file is output onto a photographic film. This film is then used to make a printing plate, in a similar manner to a contact proof in darkroom photography.
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Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born scientist, inventor, engineer, and innovator who is credited with patenting the first practical telephone.