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Digital forensics
Digital forensics, also called forensic computing, is the branch of forensic science that recovers and analyzes data from computers and mobile devices for legal proceedings.
Digital image
A digital image is a picture represented as a finite array of pixels, each storing a quantized value of light intensity or color. The first was made in 1957.
Digital image correlation
Digital image correlation (DIC) is a non-contact optical method that tracks a speckle pattern through image sequences to measure full-field displacement and strain, introduced in 1982.
Digital image processing
Digital image processing is the branch of signal processing that uses computers to enhance, transform, and analyze images, born in the early 1960s with NASA's Ranger 7 Moon pictures.
Digital India
Digital India is a flagship Government of India program launched by Prime Minister Narendra Modi on 1 July 2015, coordinated by MeitY to build digital infrastructure and services.
Digital instrumentation and control
Digital instrumentation and control is the use of computer-based systems, rather than analog devices, to monitor and protect nuclear power plants; software common-cause failure is its central technical concern.
Digital light processing (3D printing)
Digital light processing (DLP) 3D printing is a vat photopolymerization method that cures an entire resin layer at once by projecting a patterned light image.
Digital Linear Tape
Digital Linear Tape (DLT) is a magnetic tape storage format using half-inch tape in a square cartridge, developed at Digital Equipment Corporation and introduced in 1984.
Digital mechanical metamaterials
Digital mechanical metamaterials are architected materials whose mechanical behavior is organized into discrete digital states, so a structure of one material can encode, store, and compute information mechanically.
Digital media
Digital media, also called online media, are media whose content is encoded as binary values computers store and manipulate, unlike analog media on film, tape, or paper; most stored information has been digital since about 2002.
Digital microfluidics
Digital microfluidics (DMF) is a lab-on-chip technique that moves, merges, and splits picoliter to microliter droplets on electrode arrays, automating chemical and biological assays at small volumes.
Digital micromirror device
A digital micromirror device (DMD) is a MEMS chip of tiny tilting aluminum mirrors acting as pixels, invented at Texas Instruments, that powers DLP projection and digital cinema.
Digital Mobile Radio
Digital Mobile Radio (DMR) is an open digital radio standard for professional and business users, developed by ETSI and ratified in 2005, using two-slot TDMA in 12.5 kHz channels.
Digital Personal Data Protection Act, 2023
The Digital Personal Data Protection Act, 2023 (DPDP Act) is India's general statute for processing digital personal data, enacted in August 2023 and enforced by a Data Protection Board of India.
Digital phase-locked loop
A digital phase-locked loop (DPLL) is a digitally implemented phase-locked loop in which a numerically controlled oscillator tracks a received signal's phase and frequency for carrier and clock recovery.
Digital printing
Digital printing, also called electronic printing, prints a digital file directly onto paper or other media without a printing plate, making short runs and variable content economical.
Digital quantum simulation
Digital quantum simulation (DQS) is a computational method that uses a programmable quantum computer to reproduce a quantum system's time evolution as a sequence of discrete quantum gates.
Digital Radio Mondiale
Digital Radio Mondiale (DRM) is an open digital radio standard designed to replace analog AM and FM broadcasts on the same frequencies, first published as an ETSI specification in 2001.
Digital Realty
Digital Realty is an American real estate investment trust headquartered in Austin, Texas, that develops and operates data centers, with more than 300 facilities in over 30 countries serving 5,000 customers.
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 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.