MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Coordinates are always expressed in pixel units; there is no implicit scale to a real-world measure like millimeters or inches, and the size of a displayed graphic will be a function of that specific display’s dot pitch or pixel density.

Detailed explanation-2: -Ordinarily, in device coordinates, the pixel is the unit of measure. The drawing region is a rectangle of pixels.

Detailed explanation-3: -In terms of coordinates, a pixel can be identified by a pair of integers giving the column number and the row number. For example, the pixel with coordinates (3, 5) would lie in column number 3 and row number 5. Conventionally, columns are numbered from left to right, starting with zero.

Detailed explanation-4: -Pixels, abbreviated as “px", are also a unit of measurement commonly used in graphic and web design, equivalent to roughly 1⁄96 inch (0.26 mm). This measurement is used to make sure a given element will display as the same size no matter what screen resolution views it.

Detailed explanation-5: -A coordinate system is a way of assigning numbers to points. In two dimensions, you need a pair of numbers to specify a point. The coordinates are often referred to as x and y, although of course, the names are arbitrary.