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Direct memory access ( DMA) is a feature of computer systems that allows certain hardware subsystems to access main system memory independently of the central processing unit (CPU).
Poincaré metric. In mathematics, the Poincaré metric, named after Henri Poincaré, is the metric tensor describing a two-dimensional surface of constant negative curvature. It is the natural metric commonly used in a variety of calculations in hyperbolic geometry or Riemann surfaces . There are three equivalent representations commonly used ...
Delta Scientific Corporation, also known just as Delta Scientific, is a company based in Palmdale, California, United States. [2] As a worldwide corporation, Delta Scientific Corp. has been developing and making vehicle access control equipment since 1974.
Inland deltas. Okavango Delta. In rare cases the river delta is located inside a large valley and is called an inverted river delta. Sometimes a river divides into multiple branches in an inland area, only to rejoin and continue to the sea. Such an area is called an inland delta, and often occurs on former lake beds.
Log-structured merge-tree. In computer science, the log-structured merge-tree (also known as LSM tree, or LSMT [1]) is a data structure with performance characteristics that make it attractive for providing indexed access to files with high insert volume, such as transactional log data. LSM trees, like other search trees, maintain key-value pairs.
Delta TechOps (Technical Operations) is the maintenance, repair and overhaul (MRO) division of Delta Air Lines, headquartered at Hartsfield-Jackson International Airport in Atlanta, Georgia. [1] With more than 9,600 employees and 51 maintenance stations worldwide, Delta TechOps is a full-service maintenance provider for the more than 900 ...
Login. In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system or program by identifying and authenticating themselves. The user credentials are typically some form of a username and a password, [1] and these credentials themselves are sometimes referred ...
The Holland Tract is an island in the Sacramento–San Joaquin River Delta. [2] [3] It is part of Contra Costa County, California, and managed by Reclamation District 2025.