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A digital system uses discrete (discontinuous) values, usually but not always symbolized numerically (hence called "digital") to represent information for input, processing, transmission, storage, etc. By contrast, non-digital (or analog) systems use a continuous range of values to represent information. Although digital representations are discrete, the information represented can be either discrete, such as numbers, letters or icons, or continuous, such as sounds, images, and other measurements of continuous systems.

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Blogs for Digital

POPAI Digital Signage Blog (POPAI Digital Signage Blog)

... this blog, chances are you already know a thing or two about digital signage anyway. ... of this blog -- many of whom eat, sleep and dream digital signs. ...www.popaidigitalblog.com/blog

Digital Earth Blog

The latest news on all of the top digital earth products, such as Google Earth, Google Maps, Virtual Earth, Nasa World Wind and WorldWide Telescope.www.digitalearthblog.com/

Social Media Marketing Blog - C Digital, facebook, youtube, social ...

Social media marketing blog giving you news about facebook, myspace, youtube and ... © 2008 Communicado Digital - Social Media Blog. Powered by ...cdigitalblog.com/

New digital blog : Chase for your life style

Discount Electronics, Electronics Store, Cheap Consumer Electronics, Gizmos and Gadgets, Electronic Gadgets, MP3 Player ,Digital Camera low price , Cut-price Digital ...newdigitalblog.blogspot.com/

Email, Search Engine, and Digital Marketing Blog - Acxiom Digital

... marketer or a digital marketer? ... in online digital marketing, and with the world awash in blogs on subjects as ... Customers can blog too, and many do. ...blog.acxiomdigital.com/

Wikipedia About Digital




A digital system uses discrete (discontinuous) values, usually but not always symbolized numerically (hence called "digital") to represent information for input, processing, transmission, storage, etc. By contrast, non-digital (or analog) systems use a continuous range of values to represent information. Although digital representations are discrete, the information represented can be either discrete, such as numbers, letters or icons, or continuous, such as sounds, images, and other measurements of continuous systems.

The word digital comes from the same source as the word digit and digitus (the Latin word for finger), as fingers are used for discrete counting.

The word digital is most commonly used in computing and electronics, especially where real-world information is converted to binary numeric form as in digital audio and digital photography. Such data-carrying signals carry electronic or optical pulses, the amplitude of each of which represents a logical 1 (pulse present and/or high) or a logical 0 (pulse absent and/or low).

Digital noise

When data is transmitted, or indeed handled at all, a certain amount of noise enters into the signal. Noise can have several causes: data transmitted wirelessly, such as by radio, may be received inaccurately, suffer interference from other wireless sources, or pick up background noise from the rest of the universe. Microphones pick up both the intended signal as well as background noise without discriminating between signal and noise, so when audio is encoded digitally, it typically already includes noise.

Electric pulses transmitted via wires are typically attenuated by the resistance of the wire, and changed by its capacitance or inductance. Temperature variations can increase or reduce these effects. While digital transmissions are also degraded, slight variations do not matter since they are ignored when the signal is received. With an analog signal, variances cannot be distinguished from the signal and so provide a kind of distortion. In a digital signal, similar variances will not matter, as any signal close enough to a particular value will be interpreted as that value. Care must be taken to avoid noise and distortion when connecting digital and analog systems, but more when using analog systems.

Symbol to digital conversion

Since symbols (for example, alphanumeric characters) are not continuous, representing symbols digitally is rather simpler than conversion of continuous or analog information to digital. Instead of sampling and quantization as in analog-to-digital conversion, such techniques as polling and encoding are used.

A symbol input device usually consists of a number of switches that are polled at regular intervals to see which switches are pressed. Data will be lost if, within a single polling interval, two switches are pressed, or a switch is pressed, released, and pressed again. This polling can be done by a specialized processor in the device to prevent burdening the main CPU. When a new symbol has been entered, the device typically sends an interrupt to alert the CPU to read it.

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News about Digital

Will Prince of Wales click with Google and the digital age?

Times OnlineFirst it was MySpace, now it is Google. The Prince of Wales’s one-man digital revolution moved up a gear last night when it was announced that he is to address Google’s annual European Zeitgeist gathering this month.http://www.timesonline.co.uk/tol/news/tech_and_web/the_web/a...

Digital Field Guides Eliminate the Guesswork

New York TimesComputer programs are in prototype that identify tree species based on the shape of their leaves.http://www.nytimes.com/2009/05/10/business/10novel.html

County tax maps enter digital age

The Daily MailCATSKILL — The offices of Greene County Clerk and Real Property Tax Services have completed a major digital indexing project of all survey maps filed with the county.http://www.thedailymail.net/articles/2009/05/09/news/news4.t...

MEA Digital Named Top Agency in 2009 by BtoB Magazine

PRWeb via Yahoo! NewsMEA Digital has been named one of BtoB's Top Agencies in 2009 for the third year in a row thanks to their work with clients like SAVO Group, Vistage, and Mitsubishi Digital Electronics of America. The list was published in the April issue of BtoB Magazine and spotlighted a number of other well-known shops, including Ogilvy, DDB, Traction, and Digitas to name a few.http://news.yahoo.com/s/prweb/20090509/bs_prweb/prweb2402104...

Infamous Digital Comic: Part 1

IGN PS3Infamous (PS3) Check out Sucker Punch's digital comic version of its forthcoming super-powered title.http://ps3.ign.com/articles/981/981201p1.html

News about Digital

Toasting the birthday of the integrated circuit

CNET NewsOpening up the evening's event, John Hollar, CEO of the Computer History Museum, put the impact of the IC this way: "It became the electronics technology through which we have created our contemporary digital world. It is indispensable to modern lifehttp://news.cnet.com/8301-11386_3-10237155-76.html

West Ham United v Liverpool - live!

Guardian UnlimitedBut this was after the semi-final replay against Ipswich, a game that I discovered, after spending perhaps too much time trawling through the Guardian's digital archives for the answer, kicked off at 7.30pm. So how did they know the game was about to ... http://www.guardian.co.uk/football/2009/may/09/westhamunited...

Digital Camera Photographer of the Year 2009: World in Motion

Daily TelegraphThe annual Digital Camera Photographer of the Year competition is launched today – with support from Telegraph Media Group. Now in its sixth year, Future’s Digital Camera Photographer of the Year attracts entries from across the globe. In 2008 ... http://www.telegraph.co.uk/culture/culturepicturegalleries/5...

2Q digital growth slows at Warner Music

SalonWarner said digital music sales in the second quarter through March grew 7 percent to $166 million, far slower than the 48 percent growth posted a year ago. Physical music sales such as from compact discs fell 25 percent, pulling down all music sales ... http://www.salon.com/wires/ap/scitech/2009/05/07/D981J3301_u...

Richard and Judy's digital chatshow will end in July

Guardian UnlimitedRichard Madeley and Judy Finnigan: 'We were a bit too far ahead of the curve' Richard Madeley and Judy Finnigan's ill-starred chatshow on the digital channel Watch is coming off air in early July, six months before the end of their contract with the ... http://www.guardian.co.uk/media/2009/may/08/richard-madeley-...

Search results for Digital

HP United States - Computers, Laptops, Servers, Printers and more

Official Hewlett-Packard site - Buy or learn about HP printers, laptops, computers, digital cameras, servers, storage, networking, software, enterprise solutions and more.http://www.hp.com/

Digital on MySpace Music - Free Streaming MP3s, Pictures & Music ...

MySpace Music profile for Digital. Download Digital Drum & Bass / Reggae / music singles, watch music videos, listen to free streaming mp3s, & read Digital's blog.http://www.myspace.com/ukdigital

Digital - Gizmodo

This is Michael Fremer. He's listening to "Avalon" by Roxy Music on his $350,000 stereo system. It sounds excellent. He's a bit crazy, but if you love music, you need him.http://gizmodo.com/tag/digital/

digital definition | Dictionary.com

Copy & paste this link to your blog or website to reference this pagehttp://dictionary.reference.com/browse/digital

Digital Blasphemy 3D Wallpaper

Hi-res original 3d-rendered computer desktop wallpapers. The public gallery images are free to use as your personal desktop wallpaper.http://www.digitalblasphemy.com/

Wikipedia results for Digital

Digital - Wikipedia, the free encyclopedia

A digital system uses discrete (that is, discontinuous) values to represent information for input, processing, transmission, storage, etc. By contrast, non-digital (or analog ... http://en.wikipedia.org/wiki/Digital

Digital television - Wikipedia, the free encyclopedia

Digital television (DTV) is the sending and receiving of moving images and sound by discrete signals, in contrast to the analog signals used by analog TV.http://en.wikipedia.org/wiki/Digital_television

Digital Equipment Corporation - Wikipedia, the free encyclopedia

Digital Equipment Corporation was a pioneering American company in the computer industry. It is often referred to within the computing industry as DEC (this acronym was frequently ... http://en.wikipedia.org/wiki/Digital_Equipment_Corporation

Digital photography - Wikipedia, the free encyclopedia

Digital photography is a form of photography that utilizes digital technology to make images of subjects. Until the advent of such technology, photography used photographic film to ... http://en.wikipedia.org/wiki/Digital_photo

Digital signal - Wikipedia, the free encyclopedia

The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that have a discrete number of levels, for example a sampled and quantified ... http://en.wikipedia.org/wiki/Digital_signal
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Videos found for Digital

Digital TV Converter Hack

Digital TV Converter HackModify a Digital Converter box into a battery powered one for emergencies, camping or other on-the-go uses. Save your portable analog TV's!Flash - Video

Digital piracy

Digital piracyCNN's Richard Quest explains the psychology behind internet piracy and people's feelings about it.Windows Media - Video

Digital Britain: Gordon Brown heral...

Digital Britain: Gordon Brown heralds new eraThe digital revolution "lies at the heart" of Britain's economic recovery, according to Prime Minister Gordon Brown. In a keynote speech to broadcasting and technology figures, Mr...Flash - Video

Braude Beat: Papers struggle in dig...

Braude Beat: Papers struggle in digital era(NECN: Jim Braude) - Layoffs, cutbacks -- even closings have plagued the nation's newspapers, as readers head online. So, today, Massachusetts Senator John Kerry spoke out at a...Flash - Video

Amazing Digital Surround Sound

Amazing Digital Surround SoundPut on your headphones, close your eyes and listen to the amazing digital surround sound. I blew this off at first, but then it got viewed 30,000 times in under a week so I...MPEG 4 - Video

Answers for Digital

aaron_esqAfter digital transition, will standard analog cable will work the same?aaron_esqYou don't have to do anything. The cable companies are under federal orders to continue broadcasting the local Over The Air TV in analog until at least 2012. The FCC will be reviewing their order whe...house of jazzWhat is a digital scanner, is it different from an ordinary scanner?house of jazzIf it scans into a computer, it's a digital scanner. So you are right, your scanner is a digital scanner. If you scan the picture, it will save as an image file on your harddrive. It may even specify ...TyWhat is the best digital camera brand to buy?TyAsking for an opinion between Nikon or Canon is like asking about religion. Both sides will argue until they fall unconcious. The truth is, both Nikon and Canon make fantastic D-SLR cameras. If you...Mr. SpinWhat kind of digital camera has a lens that can take pictures in a small room?Mr. SpinDusty's right that a DSLR is your best answer, but that's not cheap. There are not too many point and shoot digital cameras that go very wide. The small sensor used in most makes it darn near imposs...MitchelAHHow will using a non-digital lens with a digital body change the quality?MitchelAHThere is no difference between a digital or "non-digital" lens, design wise. Nothing has been done to the glass or element design. The real differences have to do with the size of the image projecte...
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