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Digital Realty DC Partners NA Fund-B, LP
Digital Realty DC Partners NA Fund-B, LP is a Delaware private-capital fund formed in 2024 that owns hyperscale data centers, sponsored by Digital Realty Trust.
Digital recording
Digital recording captures sound, images, or other signals as sequences of discrete numbers rather than a continuous physical trace; audio PCM's sampling rate and bit depth fix its frequency response and dynamic range.
Digital Research
Digital Research Inc. was an American software company founded by Gary Kildall and Dorothy McEwen in Pacific Grove, California, best known for CP/M, the dominant personal computer operating system of the late 1970s.
Digital rights management
Digital rights management (DRM) is any technology used to control access to and use of digital works, applied to streaming, e-books, software, and video games.
Digital root
The digital root, also called the repeated digital sum, is the single digit left after repeatedly summing an integer's digits; it equals the remainder modulo 9.
Digital Selective Calling
Digital Selective Calling (DSC) is a standardized maritime radio protocol for establishing contact between ships and coast stations, most importantly to transmit automated distress alerts.
Digital Services Act
The Digital Services Act (DSA) is an EU regulation setting harmonized rules for online platforms and search engines, requiring them to counter illegal content and protect users' rights.
Digital signage
Digital signage, sometimes called the fifth screen, uses LCD, LED, or e-paper displays to present advertising, information, and wayfinding content in public and commercial spaces, managed from central software.
Digital signal
A digital signal, also known as a logic or binary signal, takes only a finite set of amplitude values, most commonly a binary waveform switching between two voltage states.
Digital signal processing
Digital signal processing (DSP) is the deliberate alteration of digital signals, by filtering, transforms, estimation, and related operations, to improve their quality, transmission, or storage.
Digital signal processor
A digital signal processor, also called a DSP chip, is a specialized microprocessor whose architecture is optimized for real-time signal processing, notably single-cycle multiply-accumulate operations and filtering.
Digital signature
A digital signature is a cryptographic mechanism providing origin authentication, data integrity, and non-repudiation; the signer uses a private key and anyone verifies with a public key.
Digital Signature Algorithm
The Digital Signature Algorithm (DSA) is a public-key signature algorithm designed by the NSA, standardized by NIST in FIPS 186, and effective for federal use in 1994.
Digital single-lens reflex camera
A digital single-lens reflex camera, or DSLR, is a digital camera whose hinged mirror and pentaprism direct light from the interchangeable lens into an optical viewfinder.
Digital smile design
Digital smile design (DSD) is a digital dentistry workflow that uses facial and intraoral photographs, video, and software to analyze smile esthetics and plan cosmetic treatment, producing a digital wax-up and mock-up.
Digital soil mapping
Digital soil mapping (DSM) is a geospatial method that predicts soil properties or classes across a landscape by fitting quantitative relationships between soil observations and environmental data layers.
Digital sovereignty
Digital sovereignty is the capacity of a state to operate autonomously in the digital realm. The EU aims to triple its data center capacity within 5 to 7 years.
Digital spatial profiling
Digital spatial profiling (DSP) is a spatial omics method that quantifies dozens to thousands of proteins or transcripts in selected regions of tissue sections, commercialized as GeoMx and reported in 2020.
Digital subcarrier multiplexing
Digital subcarrier multiplexing (DSCM), also written DSM, is a coherent optical technique that divides a data stream into digitally generated subcarrier channels with lower symbol rates and greater dispersion tolerance.
Digital subscriber line
Digital subscriber line (DSL) is a family of technologies, collectively xDSL, that carries broadband data over telephone copper lines at the same time as voice calls.
Digital subtraction angiography
Digital subtraction angiography (DSA): fluoroscopic X-ray technique subtracting a pre-contrast mask image from contrast-filled frames to show vessels; gold standard in neurovascular imaging since 1980.
Digital television
Digital television (DTV), or digital TV, transmits television sound, pictures, and data digitally, fitting more channels into the same spectrum, supporting high-definition pictures, and showing a cliff effect at weak signals.
Digital television transition
Digital television transition (digital switchover, DSO): countries replacing analog TV broadcasting with digital terrestrial television. US analog shut-off 2009; digital carries up to 20 programs per 6-8 MHz channel, freeing spectrum for mobile broadband and public safety.
Digital television transition in the United States
The U.S. DTV transition ended analog full-power TV broadcasting on June 12, 2009, after a DTV Delay Act postponement from February 17, 2009, aided by NTIA's $40 converter box coupon program and freeing the 700 MHz band for wireless and public safety use.
Digital Terrestrial Multimedia Broadcast
Digital Terrestrial Multimedia Broadcast (DTMB) is China's national standard for terrestrial digital television broadcasting, defined by standard GB 20600-2006 and mandatory since 2007, used in China, Hong Kong, Macao, Cuba, and Pakistan.
Digital terrestrial television
Digital terrestrial television (DTT) is television broadcasting delivered to rooftop or indoor aerials by ground-based transmitters using digital signals, replacing analog broadcasting through a worldwide switchover begun around 2000.
Digital Thread
A digital thread is a connected flow of product and process data spanning a manufactured item's entire lifecycle, from design through production, maintenance, and end of life.
Digital trace data
Digital trace data are records of activity people leave when interacting with websites, social media, apps, sensors, and telecommunication networks, and are a major data source for computational social science.
Digital transformation
Digital transformation is the economic and societal change produced when organizations use digital technologies to alter value propositions, business models, and ways of working, not just convert analog data.
Digital twin
A digital twin is a virtual representation of a physical object, process, or system kept synchronized with its real-world counterpart by data flows and able to feed decisions back.