Video Graphics ArrayComputer display standard and resolution Video Graphics ArrayRelease dateApril 2, 1987; 39 years ago (1987-04-02)CardsEntry-levelChips and Technologies 82c441Video-7 VEGA DeluxeATI Graphics Solution PlusS3 (911911A924801805805i928805p928p)Matrox MAGIC RGBParadise Systems PEGA 1Tseng Labs ET3000Cirrus Logic CL-GD400sMid-rangeATI Wonder seriesParadise Systems PEGA 1aS3 VisionTseng Labs ET4000Cirrus Logic CL-GD500sHigh-endATI Mach seriesParadise Systems PEGA 2aS3 TrioTseng Labs ET6000Cirrus Logic CL-GD5000sHistoryPredecessorEnhanced Graphics Adapter (EGA)Professional Graphics Controller (PGC)SuccessorSuper VGA (SVGA)Extended Graphics Array (XGA) Video Graphics Array (VGA) is a video display controller and accompanying de facto graphics standard, first introduced with the IBM PS/2 line of computers in 1987, which became ubiquitous in the IBM PC compatible industry within three years.
Alpha compositingIn computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or full transparency. It is often useful to render picture elements (pixels) in separate passes or layers and then combine the resulting 2D images into a single, final image called the composite. Compositing is used extensively in film when combining computer-rendered image elements with live footage.
PixelIn digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element of a raster image. In a display device, dot matrix printer, or ASCII art a pixel is the smallest element whose output can generally be controlled independently. The concept of a picture element dates to the earliest days of electronic imaging.
Color spaceA color space is a specific organization of colors. In combination with color profiling supported by various physical devices, it supports reproducible representations of color – whether such representation entails an analog or a digital representation.Frame rate controlFrame rate control (FRC) or temporal dithering is a method for achieving greater color depth particularly in liquid-crystal displays. Older, cheaper, or faster LCDs, especially those using TN, often represent colors using only 6 bits per RGB color, or 18 bit in total, and are unable to display the 16.78 million color shades (24-bit truecolor) that contemporary signal sources like graphics cards, video game consoles, set-top boxes, and video cameras can output.
NeXTstationNeXTstation is a high-end workstation computer developed, manufactured, and sold by NeXT from 1990 until 1993. It runs the NeXTSTEP operating system. The system was designed to be a lower-cost option compared to the company's upscale product, the NeXTcube. Compared to the cube, it removed a number of features and had limited expandability, allowing it to fit in a much smaller pizza-box form factor case.
Silicon GraphicsSilicon Graphics, Inc. (stylized as SiliconGraphics before 1999, later rebranded SGI, historically known as Silicon Graphics Computer Systems or SGCS) was an American high-performance computing manufacturer, producing computer hardware and software. Founded in Mountain View, California, in November 1981 by James H. Clark, the computer scientist and entrepreneur perhaps best known for founding Netscape (with Marc Andreessen).
ZX SpectrumThe ZX Spectrum (UK: ) is an 8-bit home computer developed and marketed by Sinclair Research. The Spectrum played a pivotal role in the history of personal computers and video games, especially in the United Kingdom. It was one of the all-time bestselling British computers with over five million units sold. It was first released in Britain on 23 April 1982 with releases in some other regions, including West Germany and the United States, after that year.
GamutIn color reproduction and colorimetry, a gamut, or color gamut , is a convex set containing the colors that can be accurately represented, i.e. reproduced by an output device (e.g. printer or display) or measured by an input device (e.g. camera or visual system). Devices with a larger gamut can represent more colors. Similarly, gamut may also refer to the colors within a defined color space, which is not linked to a specific device.
User interfaceIn the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine from the human end, while the machine simultaneously feeds back information that aids the operators' decision-making process.
BitThe bit is the most basic unit of information in computing and digital communication. The name is a portmanteau of binary digit. The bit represents a logical state with one of two possible values. These values are most commonly represented as 1 and 0, but other representations such as true/false, yes/no, on/off, and +/− are also widely used.
Satellite imagerySatellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world. Satellite imaging companies sell images by licensing them to governments and businesses such as Apple Maps and Google Maps. HistoryThe first images from space were taken on sub-orbital flights.*As an Amazon Associate I earn from qualifying purchases.