bitmap
Meaning
A representation in which each item corresponds to one or more bits of information, especially the information in an image that represents the color of each pixel.
(computing) A type of memory organization or image file format in which each pixel is represented by one or more bits of data.
Structure
Usage
The icon was saved as a simple bitmap file.
Early computer graphics relied heavily on bitmap displays.
Converting the vector logo to a bitmap caused a loss of sharpness when enlarged.
Etymology
The term 'bitmap' is a modern compound word from the field of computer science, formed in the mid-20th century. Its first element, 'bit,' is a portmanteau of 'binary digit,' coined to describe the smallest unit of data. The second element, 'map,' derives from Latin 'mappa,' originally referring to a cloth chart, and evolved to mean any systematic graphical representation. Literally, a 'bitmap' is a 'map of bits,' where the spatial arrangement of binary data points directly corresponds to the visual pattern of an image on a display or in a file, logically connecting the abstract digital data to a concrete visual layout.
Analysis
- bit: Origin: English (coined from 'binary digit'). Role: The fundamental unit of information in computing, representing a single binary state (0 or 1). - map: Origin: Latin (mappa, meaning 'napkin, cloth' on which maps were drawn). Role: A representation or systematic arrangement of elements, indicating a structured layout.