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Uniplex (computers)
Uniplex may refer to: * Simplex * ''Uniplexed'', the rumored U in Unix (or Unics); as opposed to the ''multiplexed'' of Multics See also * Simplex (other) * Duplex (other) Duplex (Latin, 'double') may refer to: Arts and entertainment * ''Duplex'' (film), or ''Our House'', a 2003 American black comedy film * Duplex (band), a Dutch electronic music duo * Duplex (Norwegian duo) * Duplex!, a Canadian children's musi ... * Multiplex (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simplex
In geometry, a simplex (plural: simplexes or simplices) is a generalization of the notion of a triangle or tetrahedron to arbitrary dimensions. The simplex is so-named because it represents the simplest possible polytope in any given dimension. For example, * a 0-dimensional simplex is a point, * a 1-dimensional simplex is a line segment, * a 2-dimensional simplex is a triangle, * a 3-dimensional simplex is a tetrahedron, and * a 4-dimensional simplex is a 5-cell. Specifically, a ''k''-simplex is a ''k''-dimensional polytope which is the convex hull of its ''k'' + 1 vertices. More formally, suppose the ''k'' + 1 points u_0, \dots, u_k \in \mathbb^ are affinely independent, which means u_1 - u_0,\dots, u_k-u_0 are linearly independent. Then, the simplex determined by them is the set of points : C = \left\ This representation in terms of weighted vertices is known as the barycentric coordinate system. A regular simplex is a simplex that is also a regular polytope. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley (Berkeley Software Distribution, BSD), Microsoft (Xenix), Sun Microsystems (SunOS/Solaris (operating system), Solaris), Hewlett-Packard, HP/Hewlett Packard Enterprise, HPE (HP-UX), and IBM (IBM AIX, AIX). In the early 1990s, AT&T sold its rights in Unix to Novell, which then sold the UNIX trademark to The Open Group, an industry consortium founded in 1996. The Open Group allows the use of the mark for certified operating systems that comply with the Single UNIX Specification (SUS). Unix systems are chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multics
Multics ("Multiplexed Information and Computing Service") is an influential early time-sharing operating system based on the concept of a single-level memory.Dennis M. Ritchie, "The Evolution of the Unix Time-sharing System", Communications of the ACM, Vol. 17, 1984, pp. 365-375. Nathan Gregory writes that Multics "has influenced all modern operating systems since, from microcomputers to mainframes." Initial planning and development for Multics started in 1964, in Cambridge, Massachusetts. Originally it was a cooperative project led by MIT (Project MAC with Fernando Corbató) along with General Electric and Bell Labs. It was developed on the GE 645 computer, which was specially designed for it; the first one was delivered to MIT in January 1967. GE offered their earlier 635 systems with an early timesharing system known as "Mark I" and intended to offer the 645 with Multics as a larger successor. Bell withdrew from the project in 1969 as it became clear it would not deliver a wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simplex (other)
Simplex may refer to: Mathematics *Simplex, a term in geometry meaning an n-dimensional analogue of a triangle * Pascal's simplex, a version of Pascal's triangle of more than three dimensions * Simplex algorithm, a popular algorithm for numerical solution of linear programming problems *Simplex graph, derived from the cliques of another graph *Simplex noise, a method for constructing an n-dimensional noise function * Simplex plot, a ternary plot used in game theory Companies and trade names * Simplex (bicycle), a French bicycle derailleur brand * Simplex Manufacturing Corporation, an American manufacturer of motorcycles in Louisiana from 1935 to 1975 * American Simplex, an American automobile made in Mishawaka, Indiana, US *Simplex Automobile Company, a defunct luxury car manufacturer from 1907 to 1921 *Crane-Simplex, a defunct luxury car manufacturer in New York, US at the start of the 20th century *Sheffield-Simplex, a British vehicle manufacturer operating 1907–1920 *Simp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duplex (other)
Duplex (Latin, 'double') may refer to: Arts and entertainment * ''Duplex'' (film), or ''Our House'', a 2003 American black comedy film * Duplex (band), a Dutch electronic music duo * Duplex (Norwegian duo) * Duplex!, a Canadian children's music band * ''The Duplex'', an American comic strip by Glenn McCoy * ''The Duplex'' (film), a 2015 Nigerian film Places * Duplex, Tennessee, U.S. * Duplex, Texas, U.S. Science and technology * ''Duplex'' (moth), a genus of moths in the family Erebidae * Nucleic acid double helix, a double-stranded molecule of DNA or RNA * Duplex (telecommunications), communications in both directions simultaneously * Duplex (typography), a Linotype technique * Duplex ultrasonography, a medical imaging technique * Google Duplex, an extension of Google Assistant Transportation * Duplex (automobile), an early car built in Canada in 1923 * Duplex locomotive, a type of steam locomotive * TGV Duplex, a French high-speed train of the TGV family featuring bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
