work is open access where the copyright holder has given general permission to copy, use, distribute, transmit and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship.

Rovi Corporation is a United States-based company that provides guidance technology, entertainment data, copy protection, industry standard networking and media management technology for digital entertainment devices and services.

Another form of analog copy protection, known as CGMS-A, is added by DVD players and digital cable / satellite boxes.

Additionally the same year, Macrovision acquired all the music copy protection and digital rights management ( DRM ) assets of TTR Technologies ( formerly NASDAQ listed under the ticker TTRE ).

In addition to being a media player, Windows Media Player includes the ability to rip music from and copy music to compact discs, burn recordable discs in Audio CD format or as data discs with playlists such as an MP3 CD, synchronize content with a digital audio player ( MP3 player ) or other mobile devices, and enable users to purchase or rent music from a number of online music stores.

* A portable or personal storage device, small hard disks designed to copy digital photographs from a camera

Since June 2011, the NAS made a digital copy of most books and reports published by the National Academies Press available for free at their website.

A common verb usage is the phrase " You can't grep dead trees "— meaning one can more easily search through digital media, using tools such as grep, than one could with a hard copy ( i. e., one made from dead trees, paper ).

The Baen Free Library is a digital library of the science fiction and fantasy publishing house Baen Books where ( as of December 2008 ) 112 full books can be downloaded free in a number of formats, without copy protection.

The same functionality which makes a debugger useful for eliminating bugs allows it to be used as a software cracking tool to evade copy protection, digital rights management, and other software protection features.

Most court reporters can also provide a digital copy of the transcript in ASCII and RealLegal formats.

" First Librarian " Eric Flint, but in a nutshell, emphasizes distribution of unencrypted digital versions of its works free of Digital Rights Management copy protection schemes through Baen Ebooks ( formerly Webscriptions, which was not formally part of Baen Books, but in effect an independent e-publisher ).

Whichever container is used, the video itself is not re-encoded and represents a complete digital copy of what has been recorded onto tape.

They suggest Trusted Computing as a possible enabler for future versions of mandatory access control, copy protection, and digital rights management.

One of these efforts, the Digital Audio Recorder Copycode Act of 1987 ( introduced by Sen. Al Gore and Rep. Waxman ), instigated by CBS Records president Walter Yetnikoff, involved a technology called CopyCode and required DAT machines to include a chip to detect attempts to copy material recorded with a notch filter, meaning that copyrighted prerecorded music, whether analog or digital, whether on LP, cassette, or DAT, would have distorted sound resulting from the notch filter applied by the publisher at the time of mastering for mass reproduction.

A fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or digital processes.

If instead the rows are counted, the result is an exact representation of the original roll – a perfect digital copy.

In August 2009 the BBC wrote to Ofcom after third-party content owners asked the BBC to undertake measures to ensure that all Freeview HD boxes would include copy protection systems as required by the Digital TV Group's D-Book, which sets technical standards for digital terrestrial television in the UK.

* Cut, copy, and paste, related commands that offer a UI interaction technique for digital transfer from a source to a destination

* Adding visual special effects-mainly computer-generated imagery ( CGI ) and digital copy from which release prints will be made ( although this may be made obsolete by digital-cinema technologies ).

Making modern film or digital copies of Autochromes introduces other problems, because a color system based on red, green and blue is being used to copy an image which exists in a red-orange, green and blue-violet system, providing further opportunities for color degradation.

They introduce various modifications to its host system's function, including the circumvention of region coding, digital rights management, and copy protection checks for the purpose of using media intended for other markets, copied media, or unlicensed third-party ( homebrew ) software.

A digital recording ( such as a CD ) encoded to the Monkey's Audio format can be decompressed into an identical copy of the original audio data.

The RIAA, under Rosen, attempted to lobby for strict digital copyright protection, including copy protected CDs and DRM-enabled media formats for personal computers.

It differs from a digital signal, in which a continuous quantity is represented by a discrete function which can only take on one of a finite number of values.

Judge Larson explicitly stated, " Eckert and Mauchly did not themselves first invent the automatic electronic digital computer, but instead derived that subject matter from one Dr. John Vincent Atanasoff ".

Exile turns the Electron's one channel output into a digital speaker for PCM output.

Thus, an analog signal is one represented by a continuous stream of data, in this case along an electrical circuit in the form of voltage, current or charge changes ( compare with digital signals below ).

This means that for every feature that one sees in the frequency response of the analog filter, there is a corresponding feature, with identical gain and phase shift, in the frequency response of the digital filter but, perhaps, at a somewhat different frequency.

Firstly, cyberspace describes the flow of digital data through the network of interconnected computers: it is at once not " real ", since one could not spatially locate it as a tangible object, and clearly " real " in its effects.

In particular, smoke signals are one of the oldest examples of a digital signal, where an analog " carrier " ( smoke ) is modulated with a blanket to generate a digital signal ( puffs ) that conveys information.

In DSP, engineers usually study digital signals in one of the following domains: time domain ( one-dimensional signals ), spatial domain ( multidimensional signals ), frequency domain, and wavelet domains.

* A combination of two devices ( or only one, if playback is digital ) to play sound recordings, for alternating back and forth to create a continuous playback of music ( for example, record players, Compact Disc players, computer media players such as an MP3 player, etc.

Starting in the late 1970s to the early 1980s, several types of video production equipment were introduced, such as time base correctors ( TBC ) and digital video effects ( DVE ) units ( one of the former being the Thomson-CSF 9100 Digital Video Processor, an internally all-digital full-frame TBC introduced in 1980, and two of the latter being the Ampex ADO, and the Nippon Electric Corporation ( NEC ) DVE ).

An example is the comparator which takes in a continuous range of voltage but only outputs one of two levels as in a digital circuit.

Jean-Maurice-Émile Baudot ( September 11, 1845 – March 28, 1903 ), French telegraph engineer and inventor of the first means of digital communication Baudot code, was one of the pioneers of telecommunications.

Indeed, the observable universe is far too small to contain an ordinary digital representation of Graham's number, assuming that each digit occupies at least one Planck volume.

Some modern hi-fi equipment can be digitally connected using fibre optic TOSLINK cables, universal serial bus ( USB ) ports ( including one to play digital audio files ), or Wi-Fi support.

Unlike modern digital computers, analog computers are not very flexible, and need to be rewired manually to switch them from working on one problem to another.

George Stibitz is internationally recognized as one of the fathers of the modern digital computer.

Libraries are trying to keep up with the digital world and the new generation of students that are used to having information just one click away.

In November 2007 Led Zeppelin made the band's songs available as legal digital downloads, one of the last major rock bands to do so.

Despite the amount of digital image processing that has to be internally done, Links is one of the fastest graphical web browsers.

While data reduction ( compression, be it lossy or lossless ) is a main goal of transform coding, it also allows other goals: one may represent data more accurately for the original amount of space – for example, in principle, if one starts with an analog or high-resolution digital master, an MP3 file of a given size should provide a better representation than a raw uncompressed audio in WAV or AIFF file of the same size.

Without this capacity, which is often the case in practice, to produce a representation with lower resolution or lower fidelity than a given one, one needs to start with the original source signal and encode, or start with a compressed representation and then decompress and re-encode it ( transcoding ), though the latter tends to cause digital generation loss.