may refer to:
- Raster Graphics , graphical techniques using arrays of pixel values
- Raster Scan , the pattern of image readout, transmission, storage, and reconstruction in television and computer images
- Rasterisation , or rasterization, conversion of a vector image to a raster image
- Raster Image Processor , or RIP, a component of a printing system that performs rasterisation
- Raster To Vector , an image conversion process
- Raster Bar , an effect used in computer demos
- Raster-Noton , a record label
- Rastrum , a device used in medieval music manuscripts to draw staff lines
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