Group representationIn the mathematical field of representation theory, group representations describe abstract groups in terms of bijective linear transformations of a vector space to itself (i.e. vector space automorphisms); in particular, they can be used to represent group elements as invertible matrices so that the group operation can be represented by matrix multiplication. In chemistry, a group representation can relate mathematical group elements to symmetric rotations and reflections of molecules.
Abstraction (computer science)In software engineering and computer science, abstraction is: The process of removing or generalizing physical, spatial, or temporal details or attributes in the study of objects or systems to focus attention on details of greater importance; it is similar in nature to the process of generalization; the creation of abstract concept-objects by mirroring common features or attributes of various non-abstract objects or systems of study – the result of the process of abstraction.
Third generation of video game consolesIn the history of video games, the third generation of video game consoles, commonly referred to as the 8-bit era, began on July 15, 1983, with the Japanese release of two systems: Nintendo's Family Computer (commonly abbreviated to Famicom) and Sega's SG-1000. When the Famicom was not released outside of Japan it was remodelled and marketed as the Nintendo Entertainment System (NES). This generation marked the end of the video game crash of 1983, and a shift in the dominance of home video game manufacturers from the United States to Japan.
ROCmROCm is an Advanced Micro Devices (AMD) software stack for graphics processing unit (GPU) programming. ROCm spans several domains: general-purpose computing on graphics processing units (GPGPU), high performance computing (HPC), heterogeneous computing. It offers several programming models: HIP (GPU-kernel-based programming), OpenMP/Message Passing Interface (MPI) (directive-based programming), OpenCL. ROCm is free, libre and open-source software (except the GPU firmware blobs), it is distributed under various licenses.
Graphics hardwareGraphics hardware is computer hardware that generates computer graphics and allows them to be shown on a display, usually using a graphics card (video card) in combination with a device driver to create the images on the screen. Graphics card The most important piece of graphics hardware is the graphics card, which is the piece of equipment that renders out all images and sends them to a display. There are two types of graphics cards: integrated and dedicated.
Ray-tracing hardwareRay-tracing hardware is special-purpose computer hardware designed for accelerating ray tracing calculations. The problem of rendering 3D graphics can be conceptually presented as finding all intersections between a set of "primitives" (typically triangles or polygons) and a set of "rays" (typically one or more per pixel). Up to 2010, all typical graphic acceleration boards, called graphics processing units (GPUs), used rasterization algorithms. The ray tracing algorithm solves the rendering problem in a different way.
Chapel (programming language)Chapel, the Cascade High Productivity Language, is a parallel programming language that was developed by Cray, and later by Hewlett Packard Enterprise which acquired Cray. It was being developed as part of the Cray Cascade project, a participant in DARPA's High Productivity Computing Systems (HPCS) program, which had the goal of increasing supercomputer productivity by 2010. It is being developed as an open source project, under version 2 of the Apache license. The Chapel compiler is written in C and C++ (C++14).
Eighth generation of video game consolesThe eighth generation of video game consoles began in 2012, and consists of four home video game consoles: the Wii U released in 2012, the PlayStation 4 family in 2013, the Xbox One family in 2013, and the Nintendo Switch family in 2017. The generation offered few signature hardware innovations. Sony and Microsoft continued to produce new systems with similar designs and capabilities as their predecessors, but with improved performance (processing speed, higher-resolution graphics, and increased storage capacity) that further moved consoles into confluence with personal computers, and furthering support for digital distribution and games as a service.
