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Xsgi
Xsgi is the X Window System (X11) server for the IRIX-based graphical workstations and servers from Silicon Graphics (SGI). Xsgi was released in 1991 with IRIX 4.0 on the SGI Indigo workstation. History Work on Xsgi began in May 1989 when Tom Paquin left IBM to join SGI to integrate the X Window System with SGI's IRIS GL interface. Paquin recruited a set of software engineers experienced in X server implementation: Jeff Weinstein, Erik Fortune, Paul Shupak, John Giannandrea, Peter Daifuku, Michael Toy, Todd Newman, Spence Murray, and Dave Spalding. Graphics hardware designed by Silicon Graphics provides accelerated rendering access through graphics hardware commands rather than memory-mapped framebuffers manipulated by the CPU. This makes the Monochrome FrameBuffer (MFB) and Color FrameBuffer (CFB) device-dependent rendering layers supplied with the MIT X11 Sampler Server inappropriate for Silicon Graphics hardware. Jeff Weinstein developed the No FrameBuffer (NFB) device-depen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X Window System
The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting with a mouse and keyboard. X does not mandate the user interfacethis is handled by individual programs. As such, the visual styling of X-based environments varies greatly; different programs may present radically different interfaces. X originated as part of Project Athena at Massachusetts Institute of Technology (MIT) in 1984. The X protocol has been at version 11 (hence "X11") since September 1987. The X.Org Foundation leads the X project, with the current reference implementation, X.Org Server, available as free and open-source software under the MIT License and similar permissive licenses. Purpose and abilities X is an architecture-independent system for remote graphical user interfaces and input device capabilities. Each person using a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IRIX
IRIX ( ) is a discontinued operating system developed by Silicon Graphics (SGI) to run on the company's proprietary MIPS workstations and servers. It is based on UNIX System V with BSD extensions. In IRIX, SGI originated the XFS file system and the industry-standard OpenGL graphics system. History SGI originated the IRIX name in the 1988 release 3.0 of the operating system for the SGI IRIS 4D series of workstations and servers. Previous releases are identified only by the release number prefixed by "4D1-", such as "4D1-2.2". The "4D1-" prefix continued to be used in official documentation to prefix IRIX release numbers. Prior to the IRIS 4D, SGI bundled the GL2 operating system, based on UniSoft UniPlus System V Unix, and using the proprietary MEX (Multiple EXposure) windowing system. IRIX 3.x is based on UNIX System V Release 3 with 4.3BSD enhancements, and incorporates the 4Sight windowing system, based on NeWS and IRIS GL. SGI's own Extent File System (EFS) replaces the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Graphics
Silicon 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 Jim Clark, its initial market was 3D graphics computer workstations, but its products, strategies and market positions developed significantly over time. Early systems were based on the Geometry Engine that Clark and Marc Hannah had developed at Stanford University, and were derived from Clark's broader background in computer graphics. The Geometry Engine was the first very-large-scale integration (VLSI) implementation of a geometry pipeline, specialized hardware that accelerated the "inner-loop" geometric computations needed to display three-dimensional images. For much of its history, the company focused on 3D imaging and was a major supplier of both hardware and software ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SGI Indigo
The Indigo, introduced as the IRIS Indigo, is a line of workstation computers developed and manufactured by Silicon Graphics, Inc. (SGI). SGI first announced the system in July 1991. The Indigo is considered one of the most capable graphics workstations of its era, and was essentially peerless in the realm of hardware-accelerated three-dimensional graphics rendering. For use as a graphics workstation, the Indigo was equipped with a two-dimensional framebuffer or, for use as a 3D graphics workstation, with the Elan graphics subsystem including one to four Geometry Engines (GEs). SGI sold a server version with no video adapter. The Indigo's design is based on a simple cube motif in indigo hue. Graphics and other peripheral expansions are accomplished via the GIO32 expansion bus. The Indigo was superseded generally by the SGI Indigo2, and in the low-cost market segment by the SGI Indy. Technical specifications The first Indigo model (code-named ''Hollywood'') was introduced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Paquin
Tom or TOM may refer to: * Tom (given name), a diminutive of Thomas or Tomás or an independent Aramaic given name (and a list of people with the name) Characters * Tom Anderson, a character in ''Beavis and Butt-Head'' * Tom Beck, a character in the 1998 American science-fiction disaster movie '' Deep Impact'' * Tom Buchanan, the main antagonist from the 1925 novel ''The Great Gatsby'' * Tom Cat, a character from the ''Tom and Jerry'' cartoons * Tom Lucitor, a character from the American animated series ''Star vs. the Forces of Evil'' * Tom Natsworthy, from the science fantasy novel ''Mortal Engines'' * Tom Nook, a character in ''Animal Crossing'' video game series * Tom Servo, a robot character from the ''Mystery Science Theater 3000'' television series * Tom Sloane, a non-adult character from the animated sitcom ''Daria'' * Talking Tom, the protagonist from the ''Talking Tom & Friends'' franchise * Tom, a character from the '' Deltora Quest'' books by Emily Rodda * Tom, a cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Giannandrea
John Giannandrea is a Scottish people, Scottish software engineer and businessman. He co-founded Metaweb, led Google Search and artificial intelligence, was co-founder and CTO of the speech recognition company Tellme Networks, Chief Technologist of the web browser group at Netscape, senior engineer at General Magic, and is now a senior executive at Apple Inc. In December 2018, it was announced that Giannandrea had been appointed Senior Vice President of Machine Learning and Artificial Intelligence Strategy at Apple, the department rumored to have the most involvement with Apple electric car project, Apple’s electric car project. References {{DEFAULTSORT:Giannandrea, John Year of birth missing (living people) Living people Computer programmers Google employees Apple Inc. employees Apple Inc. executives Scottish expatriates in the United States Scottish people of Italian descent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardware Overlay
In computing, hardware overlay, a type of video overlay, provides a method of rendering an image to a display screen with a dedicated memory buffer inside computer video hardware. The technique aims to improve the display of a fast-moving video image — such as a computer game, a DVD, or the signal from a TV card. Most video cards manufactured since about 1998 and most media players support hardware overlay. The overlay is a dedicated buffer into which one app can render (typically video), without incurring the significant performance cost of checking for clipping and overlapping rendering by other apps. The framebuffer has hardware support for importing and rendering the buffer contents without going through the GPU. Overview The use of a hardware overlay is important for several reasons: # In a graphical user interface (GUI) operating system such as Windows, one display-device can typically display multiple applications simultaneously. # Consider how a display works without ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X Keyboard Extension
In human–computer interfaces, the X keyboard extension or XKB is a part of the X Window System that extends the ability to control the keyboard over what is offered by the X Window System core protocol, and allows to use multiple keyboard layouts. Its main features are: * enhanced support for ''modifiers'' (, , etc.); * better treatment of ''key groups'' (typically keyboard layouts); * extended control of keyboard indicators (LEDs) and bells; * various new keyboard parameters (controls); * association of actions (of a particular kind) to keys. XKB is composed of two parts: a server extension and a client library. Modern versions of Xlib contain XKB, which is active by default. Client programs not using this extension can deactivate it before connecting with the server, or can simply work normally as the extension simulates the core protocol by default. XKB is also used by Wayland compositors and kmscon. Latched and locked modifiers XKB allows a modifier to be ''locked'' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IRIS GL
IRIS GL (Integrated Raster Imaging System Graphics Library) is a proprietary graphics API created by Silicon Graphics (SGI) in the early 1980s for producing 2D and 3D computer graphics on their IRIX-based IRIS graphical workstations. Later SGI removed their proprietary code, reworked various system calls, and released IRIS GL as the industry standard OpenGL. See also * Silicon Graphics Image for file extension .iris * SGI IRIS * IrisVision IrisVision is an expansion card developed by Silicon Graphics for IBM compatible PCs in 1991 and is one of the first 3D accelerator cards available for the high end PC market. IrisVision is an adaptation of the graphics pipeline from the Personal ... - first port to PCs References *{{Cite conference , first = James , last = Clark , title = The Geometry Engine: A VLSI Geometry System for Graphics , book-title = Proceedings of the 9th annual conference on Computer graphics and interactive techniques , pages = 127–133 , dat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenGL
OpenGL (Open Graphics Library) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics. The API is typically used to interact with a graphics processing unit (GPU), to achieve hardware-accelerated rendering. Silicon Graphics, Inc. (SGI) began developing OpenGL in 1991 and released it on June 30, 1992; applications use it extensively in the fields of computer-aided design (CAD), virtual reality, scientific visualization, information visualization, flight simulation, and video games. Since 2006, OpenGL has been managed by the non-profit technology consortium Khronos Group. Design The OpenGL specification describes an abstract API for drawing 2D and 3D graphics. Although it is possible for the API to be implemented entirely in software, it is designed to be implemented mostly or entirely in hardware. The API is defined as a set of functions which may be called by the client program, alongside a set of named intege ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Display PostScript
Display PostScript (or DPS) is a 2D graphics engine system for computers which uses the PostScript (PS) imaging model and language (originally developed for computer printing) to generate on-screen graphics. To the basic PS system, DPS adds a number of features intended to ease working with bitmapped displays and improve performance of some common tasks. Early versions of PostScript display systems were developed at Adobe Systems. During development of the NeXT computers, NeXT and Adobe collaborated to produce the official DPS system, which was released in 1987. NeXT used DPS throughout its history, while versions from Adobe were popular on Unix workstations for a time during the 1980s and 1990s. Design In order to support interactive, on-screen use with reasonable performance, changes were needed: * ''Multiple execution contexts'': Unlike a printer environment where a PS interpreter processes one job at a time, DPS would be used in a number of windows at the same time, each w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PHIGS
PHIGS (Programmer's Hierarchical Interactive Graphics System) is an application programming interface (API) standard for rendering 3D computer graphics, considered to be the 3D graphics standard for the 1980s through the early 1990s. Subsequently, a combination of features and power led to the rise of OpenGL, which became the most popular professional 3D API of the mid to late 1990s. Large vendors typically offered versions of PHIGS for their platforms, including DEC PHIGS, IBM's graPHIGS and Sun's SunPHIGS. It could also be used within the X Window System, supported via PEX. PEX consisted of an extension to X, adding commands that would be forwarded from the X server to the PEX system for rendering. Workstations were placed in windows typically, but could also be forwarded to take over the whole screen, or to various printer-output devices. PHIGS was designed in the 1980s, inheriting many of its ideas from the Graphical Kernel System (GKS) of the late 1970s, and became a standard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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