Computer Graphics MCQ-4

JPEG is a lossy format because it compresses images by permanently discarding some data to reduce file size.

A Refresh CRT includes an electron gun for emitting electrons, a phosphor screen for displaying the image, and a glass envelope to house the components in a vacuum.

The memory buffer (or frame buffer) stores the color or intensity values for every pixel displayed on the screen.

Quake, developed by id Software, was released in 1996 and was a pioneer in real-time 3D rendering for video games.

The process typically involves three main steps: Modeling (creating the object), Layout/Animation (movement), and Rendering (generating the final image).

Vector graphics are based on mathematical paths (lines and curves) rather than a fixed grid of pixels.

Both Projectors (visual output) and GPS units (providing location data output) serve as output devices in different contexts.

Sensors are input devices because they detect external physical inputs (like heat or light) and transmit them as data to the computer.

A plotter is a hardware device similar to a printer that outputs vector graphics by drawing lines on paper.

JPEG stands for Joint Photographic Experts Group, the name of the committee that developed the standard.

To maintain a flicker-free and realistic appearance in standard broadcast formats like PAL, a refresh rate of 25 frames per second is used.

Raster images are composed of a grid of individual pixels, each containing specific color information.

GPU stands for Graphics Processing Unit, which is the specialized processor designed to handle graphics and image calculations.

Graphics hardware requires instructions from a computer program to define and generate the image to be displayed.

Lossy compression reduces file size by removing data that is less noticeable to humans, which results in a slight loss of quality.

In the circle generation algorithm, the decision parameter determines if the y-coordinate moves to stay within the circle boundary.

DVST stands for Direct View Storage Tube, which is a type of CRT that stores picture information inside the tube.

In some technical contexts regarding signal processing and pixel intensity levels, pixel brightness values may be considered incompatible across different display standards.

Resolution is the term used to describe the total number of pixels (dots) that make up the image on a screen.

Bresenham's line algorithm is primarily used to determine the most accurate sequence of pixels to represent a straight line.