also: ラスタ
raster (scanning pattern)
Refers to the line-by-line scanning pattern used in displays, printers, or imaging devices.
This display uses a raster scan method.
raster (graphics)
In computing, describes a grid of pixels or dots that make up an image; often contrasted with vector graphics.
Raster images become pixelated when enlarged.
Shortened variant, common in compounds like ラスタ形式 (raster format).
Borrowed from English 'raster', from German 'Raster' meaning 'screen' or 'grid'.