PostScript is a page description language (PDL) developed by Adobe Systems that describes the appearance of a page, including elements such as text, graphics, and scanned images, to a printer or other output device. You'll find PostScript technology in a wide range of output devices, including black-and-white printers, color printers, slide recorders, imagesetters, and screen displays. PostScript is an object-oriented language, meaning that it treats images, including fonts, as collections of geometrical objects rather than as bit maps. PostScript fonts are called outline fonts because the outline of each character is defined. They are also called scalable fonts because their size can be changed with PostScript commands. PostScript lets you print any kind of document - with total precision and consistently high quality. Adobe PostScript technology works seamlessly with every major operating system and color management system. So no matter what platform you are using, you can print to any printer that has PostScript and expect the highest quality output every time. And if you are printing in color, your output will perfectly match the colors you've chosen from your computer. Because PostScript technology is supported by every computer platform, PostScript printers are ideal for networks, large or small, that include a variety of systems. The principal advantage of object-oriented (vector) graphics overbit-mapped graphics is that object-oriented images take advantage of high-resolution output devices whereas bit-mapped images do not. A PostScript drawing looks much better when printed on a 600-dpi printer than on a 300-dpi printer. A bit-mapped image looks the same on both printers.
Meaning of POSTSCRIPT in English
DAX English glossary of key connectivity terms. Английский глоссарий основных терминов по коммуникациям DAX. 2012