Tuesday, August 3, 2010
Difference Between Analog and Digital
Analog & Digital
As a know-how, analog is the system of taking an audio or video signal (the human voice) & translating it in to electronic pulses. Digital on the other hand is breaking the signal in to a binary format where the audio or video information is represented by a series of "1"s & "0"s. Simple when it is the deviceanalog or digital phone, fax, modem, or likewisethat does all the converting for you.
Digital versus analog can refer to process of input, information storage & transfer, the internal working of an device, & the kind of display. The word comes from the same source as the word digit & digitus.
The digital know-how breaks your voice (or tv) signal in to binary code a series of 1s & 0s transfers it to the other finish where another tool (phone, modem or TV) takes all the numbers & reassembles them in to the original signal. The beauty of digital is that it knows what it ought to be when it reaches the finish of the transmission. That way, it can correct any errors that may have occurred in the information transfer. What does all that mean to you? Clarity. In most cases, you'll get distortion-free conversations & clearer TV pics. The nature of digital know-how allows it to cram lots of those 1s & 0s together in to the same space an analog signal makes use of. Like your button-rich phone at work or your 200-plus digital cable service, that means more features can be crammed in to the digital signal. Digital offers better clarity, but analog gives you richer quality. Digital like the VCR or the CD is coming down in cost & coming out in everything from cell rings to satellite dishes.
Phone lines
Digital lines are present in huge, corporate phone systems. Though digital lines over lower voltages than analog lines, they still pose a threat to your analog equipment.
Analog lines also known as POTS (Plain Elderly Phone Service), support standard rings, fax machines, & modems. These are the lines usually present in your home or small office
There's digital-to-analog adapters that not only let you make use of analog equipment in a digital surroundings, but also safeguard against frying the internal circuitry of your phone, fax, modem, or laptop computer.
Cordless phone
The nature of digital technologybreaking a signal in to binary code & recreating it on the receiving endgives you clear, distortion-free cordless calls.
Cordless rings with digital know-how are also able to encrypt all those 1s & 0s in the coursework of transmission so your conversation is safe from eavesdroppers. And, more power can be applied to digital signals & thus, you'll enjoy longer range on your cordless phone conversations.
The advantage to analog cordless products? Well, they are a bit cheaper. & the sound quality is richer. So unless you need digital security, why not save a couple of bucks & go with an analog phone? After all, in home or small office environments where you may be the only cordless user, you won't have any interference issues.
Keep in mind, when speaking about digital & analog cordless rings, you are speaking about the signals being transferred between the handset & its base. The rings themselves are still analog devices that can only be used on analog lines. Also, the range of your cordless phoneanalog or digitalwill always depend on the environment.
Cellular Rings
Perhaps the most effective use of the digital versus analog know-how is in the booming cellular market. With new phone activations increasing exponentially, the limits of analog are quickly being realized.
Digital cellular lets significantly more people use their rings within a single coverage area. More information can be sent & received simultaneously by each phone user. And, transmissions are more resistant to static & signal fading. & with the all-in-one rings out nowphone, pager, voice mail, net accessdigital rings offer more features than their analog predecessors.
Analog's sound quality is still superioras some users with dual-transmission rings will by hand switch to analog for better sound when they are not concerned with a crowded coverage areabut digital is quickly becoming the norm in the cellular market.
Better Sound Quality
Digital offers a better quality of sound. Proponents of digital claimed that because digital scrambled up the signals in to bursts, it was more secure than analog & can help thwart "cloning," an act of grabbing phone account information over the air in order to copy then resell that information for piracy purposes. By some industry estimates, close to $650 million in wireless services has been coveted by these big-eared crooks, which only adds onto the operator's bottom line a cost that is finally passed on to the customer. Digital has stronger battery life than analog, & for the most part, better, more modern features on the rings.
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