![]() Its measure is unit in length or number of pixels. Aspect Ratio: It is the ratio of width to its height. Resolution: Use to describe the number of pixels that are used on display image.ģ. Besides color, a major difference between phosphor in their persistence how they continue to emit light after the electron beam is removed.Ģ. Different kinds of phosphors are available for use in CRT. ![]() Persistence: Persistence is the duration of phosphorescence. As frame buffer is a digital device write raster CRT is an analog device.ġ.∵ A memory bit has only two states (binary 0 or 1), a single bit plane yields a black and white (monochrome display).The picture is built up in the frame buffer one bit at a time.This amount of memory is called a bit plane. At a minimum, there is 1 memory bit for each pixel in the raster.Display Controller or Video Controller: It passes the contents of the frame buffer to the monitor.įrame Buffer: A digital frame buffer is large, contiguous piece of computer memory used to hold or map the image displayed on the screen.set without the tuning and receiving electronics. The modern graphics display is very simple in construction. Working of Interactive Computer Graphics: Significantly enhances our ability to understand data and to perceive trends.A User can see the image and make any change by sending his command with an input device. Interactive Computer Graphics require two-way communication between the computer and the user. Basically there are two types of computer graphics namely. Pixel is the smallest graphical picture or unit represented on the computer screen. Computer graphics is made up of number of pixels. In interactive Computer Graphics user have some controls over the picture, i.e., the user can make any change in the produced image. Computer graphics is an art of drawing pictures, lines, charts, etc using computers with the help of programming. CRT (Cathode Ray Tube): Display device CRT (Cathode Ray Tube) television. Non-interactive Graphics involves only one-way communication between the computer and the user, User can see the produced image, and he cannot make any change in the image. Types Of Display Devices in Computer Graphics in Hindi. In non-interactive computer graphics, the picture is produced on the monitor, and the user does not have any controlled over the image, i.e., the user cannot make any change in the rendered image. Example: screen savers.Next → ← prev Interactive and Passive Graphics (a) Non-Interactive or Passive Computer Graphics: The image is totally under the control of program instructions not under the user. Image is merely the product of static stored program and will work according to the instructions given in the program linearly. it is the computer graphics in which user does not have any kind of control over the image. Non Interactive Computer Graphics: In non interactive computer graphics otherwise known as passive computer graphics. The flight simulator is a mock up of an aircraft flight deck, containing all the usual controls and surrounded by screens on which we have the projected computer generated views of the terrain visible on take off and landing.įlight simulators have many advantages over the real aircrafts for training purposes, including fuel savings, safety, and the ability to familiarize the trainee with a large number of the world’s airports. We can create a flight simulator which may help the pilots to get trained not in a real aircraft but on the grounds at the control of the flight simulator. For example, it helps to train the pilots of our airplanes. Interactive computer graphics affects our lives in a number of indirect ways. In this way he maintains a conversation, or dialogue, with the computer. He can give a series of commands, each one generating a graphical response from the computer. To the user it appears that the picture is changing instantaneously in response to his commands. The computer on receiving signals from the input device can modify the displayed picture appropriately. This helps him to signal his request to the computer. Here the observer is given some control over the image by providing him with an input device for example the video game controller of the ping pong game. Interactive Computer Graphics: Interactive Computer Graphics involves a two way communication between computer and user. Computer graphics is an art of drawing pictures, lines, charts, etc using computers with the help of programming.
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