MIDI (; short for Musical Instrument Digital Interface ) is an electronic musical instrument industry specification that enables a wide variety of digital musical instruments, computers and other related devices to connect and communicate with one another.

Digital instruments typically discourage users from experimentation, due to their lack of the feedback and direct control that switches and knobs would provide, but patch editors give owners of hardware instruments and effects devices the same editing functionality that is available to users of software synthesizers.

* Musical Instrument Digital Interface, an industry-standard protocol that enables electronic musical instruments, computers and other electronic equipment to communicate and synchronize with each other

Digital instruments, which necessarily incorporate amplifiers, use the same principles as analog instruments for range resistors.

Most PACSs handle images from various medical imaging instruments, including ultrasound ( US ), magnetic resonance ( MR ), positron emission tomography ( PET ), computed tomography ( CT ), endoscopy ( ES ), mammograms ( MG ), Digital radiography ( DR ), computed radiography ( CR ) ophthalmology, etc.

* University of Washington Digital Collections – Ethnomusicology Musical Instrument Collection Images of musical instruments from around the world

Digital pianos usually offer a MIDI connection, allowing them to control or be controlled by other electronic instruments and sequencers.

Digital electronic stage pianos have replaced most of the original electro-mechanical instruments in contemporary usage due to their size, weight and versatility.

Digital instruments may use a cuff placed, in order of accuracy and inverse order of portability and convenience, around the upper arm, the wrist, or a finger.

Digital instruments use a cuff which may be placed, according to the instrument, around the upper arm, wrist, or a finger, in all cases elevated to the same height as the heart.

ReBirth was an early software synthesizer, pioneering this class of instruments along with Cubase, Cakewalk, Digital Performer, and Reality in the mid-1990s.

Digital recordings were used with the aid of Ashley Slater, but McKean stated that most of the instruments used were real.

* MIDI Musical Instrument Digital Interface allows a variety of musical instruments to interact with the PC in a digital environment for recording or performance.

The instruments may include Digital Power Supplies ( DPS ), Parametric Measurement Units ( PMU ), Arbitrary Waveform Generators ( AWG ), Digitizers, Digital IOs, and utility supplies.

For example, to measure a voltage of a particular semiconductor device, the Digital Signal Processing instruments in the ATE measure the voltage directly and send the results to a computer for signal processing, where the desired value is computed.

Digital modeling attempts to recreate the unique characteristics of musical instruments and pro audio gear.

In May 2008, Line 6 announced it had acquired X2 Digital Wireless ; it now sells wireless systems for guitar, bass, vocals and wind instruments.

Current products of Native Instruments include software synthesizers, samplers and effect processors, sound libraries and emulations of acoustic instruments, groove production systems and audio interfaces, as well as various products for computer-based DJing that include DJ software, Digital Vinyl Systems, hardware controllers and specific DJ audio interfaces.

The service can be accessed via Digital terrestrial television ( DTT ) ( DVB-T ), satellite television ( DVB-S ) and cable television ( DVB-C ).

Computer files can be also stored on other media in some cases, such as magnetic tapes, compact discs, Digital Versatile Discs, Zip drives, USB flash drives, etc.

Digital TV is more tolerant of interference than analog TV, and this is the reason a smaller range of channels can carry an all-digital set of television stations.

Digital techniques, such as ray-tracing ( graphics ) | ray tracing, can also render 3D models with shallow depth of field for the same effect.

* A multiple Sequencer which can mix MIDI tracks with Digital Audio ;

Digital video can be copied with no degradation in quality.

Digital video can be manipulated and edited to follow an order or sequence on an NLE, or non-linear editing workstation, a computer-based device intended to edit video and audio.

Cameras such as the Arri Alexa can capture 2K resolution images, the Red Digital Cinema Camera Company's Red One and Red Scarlet can record 4K, the Red Epic 5K, and Sony's F65 CineAlta camera can record 4K down-sampled from 8K.

Digital effects designed for DJs are often sold in tabletop models, so that the units can be placed alongside a mixer, turntables and CD scratching gear.

Digital data can be sent by shifting the carrier's frequency among a range of settings, a technique known as frequency-shift keying ( FSK ).

Jim Davis has also collaborated with Ball State University and Pearson Digital Learning to create Professor Garfield, a site with educational games focusing on math and reading skills and with Children's Technology Group to create MindWalker, a web browser that allows parents to limit the websites their children can view to a pre-set list.

They also typically do not have other requirements that are common in copyleft licences, like restrictions on formats that the work can be available in or whether Digital Rights Management may be used on the product.

Digital photos and artwork can be resized and printed to accommodate the desired size for the area to be decorated.

According to the WWF and Digital Map of European Ecological Regions by the European Environment Agency, Macedonia's territory can be subdivided into four ecoregions: the Pindus Mountains mixed forests, Balkan mixed forests, Rhodopes mixed forests and Aegean sclerophyllous and mixed forests.

One of the main features of the industry, Weta Digital can be credited with the popularity of Media Studies in NZ.

Digital pathology is enabled in part by virtual microscopy, which is the practice of converting glass slides into digital slides that can be viewed, managed, and analyzed.

Digital modulation methods can be considered as digital-to-analog conversion, and the corresponding demodulation or detection as analog-to-digital conversion.

Although designed for memory, Secure Digital Input / Output ( SDIO ) and CompactFlash cards are available that provide accessories like Wi-Fi or digital cameras, if the device can support them.

In some related signature schemes, the private key is used to Digital signature | sign a message ; anyone can check the signature using the public key.

* Digital signatures: a message signed with a sender's private key can be verified by anyone who has access to the sender's public key, thereby proving that the sender had access to the private key and, therefore, is likely to be the person associated with the public key used.

Digital signature schemes can be used for sender authentication and non-repudiation.

Digital signature schemes have the property that signatures can be computed only with the knowledge of the correct private key.

Digital television channels are the same for legacy reasons, however through multiplexing, each physical radio frequency ( RF ) channel can carry several digital subchannels.