| Asynchronous |
Communications in which data can be transmitted intermittenly rather than in a steady stream. |
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| Auto Document Feeder |
A scanner accessory that helps with text scanning. The ADF allows continuous scanning of up to 25 pages of text (depending on the ADF model). The ADF is normally used with an OCR (Optical Character Recognition) software program such as ABBYY FineSprint Reader to scan text pages.
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| bit |
Representing a value of 0 or 1, a bit is the smallest unit of memory in a computer. |
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| Bit depth |
Bit depth is the measurement of the amount of color information in an image for display or print. A higher bit depth translates to more color and a more accurate color indication in the digital image. |
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| BMP |
Bitmap Image; also called raster images; bitmap files use a grid of pixels to represent images. Every pixel in an image is given a specific location and color value. The number of pixels combined make up the image data. Dependent on resolution, bitmap images are best used to show gradations of shades of color. This is best shown in photographs and printed images. One thing to note about Bitmap images is that you cannot enlarge them without changing the resolution as well, or the image will blur. |
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| Brightness |
The balance of light and dark shades in an image. Brightness is distinct from contrast, which measures the range between the darkest and lightest shades in an image. Brightness determines the intensity of shades; contrast determines the number of shades you get.
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| Byte |
Usually made up of 8 bits for a microcomputer, a byte is the smallest amount of computer memory needed to store one character of data |
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| CCD |
Character Coupled Device; Most commonly found in electronic scanners this device converts light waves into digital information.
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| CMYK |
Cyan, Magenta, Yellow, Black; the base colors in the printing process. When printing, you should change the color mode for your images to CMYK to give them a better representation of colors.
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| Color Calibration |
The process of ensuring accurate reproduction of color for images. Full color calibration is usually a two-step process: calibrating your input device, such as a scanner; and calibrating your output device, such as a printer or monitor. By calibrating input and output devices correctly, color is accurately captured by your scanner and is reproduced faithfully on your monitor or printer as well.
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