edgepedia

Technology and the built world

61,984 articles

Dify

Dify is an open-source platform by LangGenius for building applications and agents on large language models, offering visual workflows, RAG pipelines, and model management; open-sourced in 2023, it counts Maersk and Novartis among its enterprise users.

Digest access authentication

Digest access authentication, also known as Digest authentication, is an HTTP challenge–response scheme, defined in RFC 2069 in 1997, that lets a client prove password knowledge without sending it in the clear.

Digestate processing

Digestate processing treats digestate, the wet residue left after anaerobic digestion, separating it into liquid and solid fractions and recovering nitrogen and phosphorus as fertilizers.

Digg

Digg is a social news website launched in 2004 where users submit links and vote on them, popularizing the up-vote model later adopted by Reddit.

Digi Telecommunications

Digi Telecommunications Sdn Bhd was a Malaysian mobile network operator founded in 1994, which launched the country's first GSM 1800 network and merged with Celcom in 2022.

Digi-Key Electronics

Digi-Key Electronics, branded DigiKey, is an American authorized distributor of electronic components and automation products, founded in 1972 and headquartered in Thief River Falls, Minnesota, shipping millions of parts same day.

Digicel

Digicel, also known as Digicel Group, is a telecommunications company headquartered in Kingston, Jamaica, founded by Denis O'Brien in 2000 and serving about 9 million customers across 25 markets.

DigiLocker

DigiLocker is India's government-operated digital document wallet, launched in 2015, where over 570 million users store official documents like driving licenses and marksheets with full legal validity.

Digital

Digital describes representing information using discrete values, most commonly the binary states 0 and 1, and labels the technology built on it, from computers to signal processing.

Digital Ally

Digital Ally, Inc. was an American company in Overland Park, Kansas, founded in 2004, that made body cameras, in-car video systems, and cloud evidence management software for law enforcement.

Digital AMPS

Digital AMPS, also known as D-AMPS, was a 2G mobile phone standard in North America, defined by IS-54 and IS-136 as the digital evolution of analog AMPS.

Digital architecture

Digital architecture is architecture designed, developed, or fabricated with substantial reliance on computer technologies, from CAD and BIM to parametric, generative, and algorithmic design, emerging as a design current in the 1990s.

Digital asset management

Digital asset management (DAM) is a class of enterprise software that stores, organizes, and distributes rich media, managing the metadata and usage rights attached to it.

Digital Audio Broadcasting

Digital Audio Broadcasting (DAB), also known as DAB digital radio, is a digital radio standard developed in Europe's Eureka 147 program; its updated variant DAB+ is now deployed in most markets.

Digital Audio Tape

Digital Audio Tape (DAT) is a digital audio format introduced by Sony in 1987 that stores PCM sound on a small cassette and became a studio mastering standard.

Digital backpropagation

Digital backpropagation (DBP) is a digital signal processing technique in coherent optical fiber communication that compensates chromatic dispersion and Kerr nonlinearity by solving the nonlinear Schrödinger equation backward.

Digital beamforming

Digital beamforming is a signal-processing technique in which each antenna element's signal is digitized individually, then combined in a digital processor to form flexible beams with high cost.

Digital cinema

Digital cinema, also known as D-cinema, is the set of technologies used to create, distribute, and project movies in theaters digitally, replacing 35 mm film prints.

Digital coding metasurface

A digital coding metasurface is a two-dimensional engineered surface whose unit cells act as digital phase bits, proposed in 2014 and used for beam steering and holography.

Digital coherent optics

A digital coherent optic (DCO) is a pluggable optical transceiver combining a coherent DSP, optics, and microprocessor in modules like QSFP-DD and OSFP, carrying DWDM wavelengths directly from router ports.

Digital control

Digital control is feedback control implemented by a digital computer or microcontroller, which samples signals and computes a control action, usually a discrete PID algorithm.

Digital data

Digital data is information represented as sequences of binary digits that computers store, transmit, and process; its meaning depends on the encoding, since the same byte can represent different characters.

Digital divide

The digital divide, also called the digital gap, is the gap in access to and effective use of digital technologies such as the internet, including gaps in skills and outcomes.

Digital down converter

A digital down converter (DDC) is a digital signal processing block that selects a frequency band from digitized samples, shifts it to baseband, and reduces the sample rate.

Digital electronics

Digital electronics, also called digital circuits, is the branch of electronics that represents information with discrete binary values and processes it with logic gates and memory.

Digital Equipment Corporation

Digital Equipment Corporation (DEC), marketed as Digital, was an American computer company founded in 1957 that became the world's second-largest computer company and leading minicomputer maker.

Digital Experience Monitoring

Digital experience monitoring (DEM) is a performance discipline measuring the availability, performance, and quality of user experience of applications, combining real-user monitoring and synthetic transaction monitoring; Gartner defined the category in 2016.

Digital factory

A digital factory is a network of digital models, methods, and tools for planning, implementing, and continuously improving a factory, defined by the VDI in the early 2000s.

Digital filter

A digital filter is a system that computes an output from a sampled, discrete-time input signal using arithmetic, classified as FIR filters with fixed responses and IIR filters with feedback.

Digital footprint

A digital footprint, also called a digital trail or data trail, is the data trail a person creates online, divided into active and passive footprints.