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Motherboard of an IBM PS/ValuePoint personal computer model (c. from 1993 to 1995) with an Intel i486SX microprocessor, with an elongated connector (black, horizontally in the middle/left between upper and lower edge) for the riser card on which the ISA bus slots were located. A riser card is a printed circuit board that gives a computer ...
The vestibular system, in vertebrates, is a sensory system that creates the sense of balance and spatial orientation for the purpose of coordinating movement with balance. Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of the inner ear in most mammals . As movements consist of rotations and translations ...
An operating system ( OS) is system software that manages computer hardware and software resources, and provides common services for computer programs . Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and ...
Computer science. Computer science is the study of computation, information, and automation. [ 1][ 2][ 3] Computer science spans theoretical disciplines (such as algorithms, theory of computation, and information theory) to applied disciplines (including the design and implementation of hardware and software ). [ 4][ 5][ 6] Algorithms and data ...
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). [ 1]
1. Physical layer. The Open Systems Interconnection ( OSI) model is a reference model from the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems interconnection." [ 2] In the OSI reference model, the communications between systems are split ...
Mobilities. Mobilities is a contemporary paradigm in the social sciences that explores the movement of people ( human migration, individual mobility, travel, transport ), ideas (see e.g. meme) and things (transport), as well as the broader social implications of those movements. Mobility can also be thought as the movement of people through ...
The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles of a spherical coordinate system: altitude and azimuth . Therefore, the horizontal coordinate system is sometimes called the az/el system, [ 1] the alt/az system, or the alt-azimuth system, among ...