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Analog and digital :)
PWM is Pulse Width Modulation. It is a Digital control is used to create a square wave, a signal switched between on and off.
Sound itself is always analog, though the quality varies. Things on a a computer, iPod, TV, etc. are represented and transmitted digitally, but it is converted back to analog before it gets to the speakers. An example of analog sound storage would be a record player. While both are voltage, digital media is written in 1's or 0's, then converted back into a semi analog voltage to drive a speaker. To the trained ear, modern music which is stored digitally still doesn't sound as good as analog, due to loss in some of the frequencies we hear. Another way to create or transmit sound is acoustic, which is that of a nonelectric guitar or saxophone.
Electronics divides in analogue and digital one. Electronics is a physical branch of electron emission and behavior. Analog and digital are not two kind of electronics.
it is a device that turns a measure of heat into an electrical signal it can be digital (on-off) like a switch or it can be analog (0% to 100%) like a mechanical themometer
The basic difference is that in analog modulation the modulating signal is analog signal and in digital modulation it is in digital form.
Traditional cartography involves creating maps by hand using physical tools like pencils and rulers, while digital cartography involves using computer software to create and manipulate maps. Digital cartography allows for more precise and efficient map-making processes, as well as the ability to easily update and share maps online.
Analog can reach higher speeds.
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Analog is displayed in a clock like instrument digital is shoun in numbers
In analog ckt there is more distortion but in digital there is no distortion. Analog is a continues value digital is a discrite value(0 or 1). To measure analog is very difficult but in digital it is very easy. compare to analog the digital system is very compart for us. H.L.Kiran
Analog is a clock with the moving hands on it, while digital is computer generated numbers.
Analog signals are continuous while digital signals are discrete
* Codec is for coding analog data into digital form and decoding it back. The digital data coded by Codec are samples of analog waves. * Modem is for modulating digital data into analog form and demodulating it back. The analog symbols carry digital data.
Analog communication considers infinite amplitude levels. But in digital communication only 2 levels of signal is present.
please help me to understand the word transducer
In a analog transmitter the RF carrier have to be modulated with the analog signal either by AM or FM where in digital transmitter the carrier is simply switched on and off a off = a zero and on = a one