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Q. What is Dots per Inch?
DPI (Dots per Inch) is a measure for actual sharpness of onscreen image. This relies on both the resolution and size of the image. Practical experience shows that a smaller screen has a sharper image at same resolution than does a larger screen. This is because it will need more dots per inch to display similar number of pixels. A 15-inch monitor is 12-inches horizontally. A 10-inch monitor is 8 inches horizontally. To display a VGA image (640480) the 15-inch monitor will require 53DPI and the 10-inch monitor 80 DPI.
Q. What is Data Transmission and Modems? Data can be transferred between two stations in either serial or parallel transmission. Parallel data transmission, in which a group of
what is computer network.
Information Technology or Information System Before going further we need to clarify what we mean by the term information system. It is easy to confuse terminology as many tex
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Explain the Quantization error of an ADC. Ans. Quantization error- An analog voltage is within the range of 0 to 1V and for 3 bit output, the size of all intervals are
Describe the roles of association Note that each association has roles. For instance, in Figure we can see that two classes, Student and University, have their predefined roles
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