Which of these is only one color at a time?
A. Raster File
B. JPEG Image
C. Bitmap
D. Pixel
Answer (2)
The answer is D. Pixel, as a pixel is the smallest unit of a digital image that represents one point of color. Other options like raster files, JPEG images, and bitmaps can display multiple colors. A pixel's singular color representation is key to understanding how images are constructed digitally.
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The option that is only one color at a time is (D) Pixel.
Let's break down why the other options don't fit the criteria of being 'only one color at a time':
Raster File : A raster file is a type of digital image that is made up of a grid of individual pixels, each of which can be a different color. It's a format used to represent images, such as photographs or detailed graphics. Therefore, a raster file contains many colors and cannot be described as being 'only one color at a time.'
JPEG Image : JPEG is a common image format that supports full color and rich detail. It's used for storing and transmitting photorealistic images. Like raster files, JPEG images are composed of many pixels, each one potentially a different color, rather than one single color.
Bitmap : This term can refer to either a file or in some contexts, simply a mapping of bits that represent a raster image. Similar to a raster file, bitmaps include numerous colors across many pixels that together form an image.
Pixel : A pixel is the smallest unit of a digital image or display. It is a single point in a graphic image and can only be one color at any one time. When combined, multiple pixels form images, with each pixel displaying a color which contributes to the overall picture.
In summary, a single pixel is a point of color, and at any given moment, it can only display one color. This makes option (D) Pixel the correct choice for what is 'only one color at a time.'
