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what are the touch panelsin case of touch panels displayed objects or screen positions is allowed to be selected with the touch of a finger a typical
enumerate about the trackballa trackball is a two-dimensional positioning device a spaceball provides six degrees of freedom unlike the trackball a
explain the uses of thumbwheels two thumbwheels are usually required to control the screen cursor in its horizontal and vertical position
state about movable joystickin another type of movable joystick the stick is used to activate switches that cause the screen cursor to move at a
explain the trackball and thumbwheel devices joysticksa joystick consists of a small vertical lever called the stick mounted on a base that is
determine about the locator devicesmouse a mouse is small hand-held box used to position the screen cursor wheels or rollers on the bottom of the
explain about the logical devices locator to indicate a position andor orientation pick to select a displayed entity to input a single value in the
what are the input devicesvarious devices are available for data input on graphics workstations most systems have a keyboard and one or more
determine about the raster-scan systems most of the present raster-scan systems contain a separate processor called as display processor this
explain the raster scan monitorsthe refresh process must also be performed for raster scan monitors most television monitors are raster scan display
disadvantages of random scan display- just by wire-frame it is almost impossible to create images with shaded objects or areas filled with a given
advantages of random scan display early computer displays basically an oscilloscope control x y with verticalhorizontal plate voltage often used
explain in detail about the random scan display this device using crt directs the electron beam only to the parts of the screen where a
explain the statement- crt screen as a two-dimensional matrixone can imagine the crt screen as a two-dimensional matrix which has m rows and n
describe the working of crtthe electron beam produces a tiny bright visible spot when it strikes the phosphor-coated screen a colour crt monitor has
state the importance of crt monitorcrt is considered to be one of the most important component because the quality of displayed image influences the
cathode ray tube technology crtcrt is an analog device that is used by a digital device - computer the interface between these two devices is
name the various display devicesdifferent types of display devices are discussed along with the principles on which these work the main display
a staircase light is controlled by two switches one at the top of the stairs and another at the bottom of
determine the advantages of bcd addernow let us see the arithmetic addition of two decimal digits in the bcd with a possible carry from previous
enumerate about the decimal arithmetic unitthe user of the computer input data in decimal numbers and receives output in the decimal form but a cpu
hardware implementation for signed-magnitude datawhen multiplication is implemented in digital computer we change
multiplication algorithmsmultiplication of the two fixed-point binary numbers in signed magnitude representation is done with paper and pencil
explain the uses of arithmetic processor a processor has arithmetic processor as a sub part of it which executes arithmetic operations the