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What is difference between analog and digital communication system?
Analog systems are what we can call wave systems. they have a value that changes steadily over time and can have one of an infinite set of values in a range. The term digital refers to the fact that the signal is limited to only a few possible values. in general, digit signals are represented by only voltages on a wire -0 volts ( which we called " binary o " or just "o" ) and 5 volts ( which we call " binary 1 " or just"1" ).
What are the differences between analog and digital modems?
Analog modems use the telephone cable to send audio signals, which represent 1's and 0's over a connected phone line, using phone voltages. Digital modems use a high frequency signal with the data superimposed on it. They can use the copper phone wires like an antenna. In this way there does not have to be phone connection in use. The phone can be used as well as the signal, if a filter is used to stop interference. Digital modems can also use fibre optic or coaxial cables.
Converts digital signals into analog signals for transmission over phone lines?
Oddly enough, it's called an A to D Converter and has many sources to obtain, including build it yourself plans or online auctions. There is also D to A converters so please be sure you pick the correct converter.
What is a device that translates computer signals to analog signals suitable for sending across phone lines?
A modem. Short for MOdulate-DEModulate.
What are some electromagnetic devices?
electromagnetic devices are devices that work on electricity but are magnetic
Do digital signals travel through space?
Yes, via satellite (phone).
Which type of broadband internet uses the phone line to carry digital signals at high speeds?
Digital Subscriber Line (DSL)
What are voip systems?
VoIP stands for Voice over Internet Protocol. It takes analog phone signals and transfers them to digital so you are able to make free phone calls over the internet. This especially comes in handy for over seas calls.
Why is MODEM a necessary component of many data communication system?
because internet that comes down a telephone line are analogue signals and the computer on understands digital signals ( 1 and 0s , Machine code, binary) so the modem translates the analogue signals from the phone line to digital and translates digital signals from the computer to analogue
What is diaphragm in telephones?
In the part of the phone that you talk in to there is a diaphragm that vibrates so it can change the vibration into digital signals.
What is diaphragm in a telephone?
In the part of the phone that you talk in to there is a diaphragm that vibrates so it can change the vibration into digital signals.
Can you text on an airplane?
you can not have your phone on in a plane because the signals sent and received from the phone can cause problems with aeroplanes operating systems.
What telecommunications hardware is needed to convert diitals signals to analog signals?
MODEM:A modem takes digital signal from computer and converts them to analog for the phone and reconverts them back
What converts analogue signals to digital signals for transmission over telephone lines?
Actually you have this backwards, the telephone lines can only carry analogue signals (voice band, 20Hz to 3KHz) not digital signals.The device that converts digital signals to analogue signals for transmission over telephone lines is called a phone MoDem(this stands for phone modulator demodulator). At the opposite end of the line it of course converts the telephone analogue signals back to digital signals.
Is a telephone analog device?
If you are referring to the traditional PSTN phone, the signals that it receives are analog. If you want to know about VOIP phone, it is digital in nature. However, analog can be converted to digital by using a device called ATA.
What is difference between analog and digital communication system?
Analog systems are what we can call wave systems. they have a value that changes steadily over time and can have one of an infinite set of values in a range. The term digital refers to the fact that the signal is limited to only a few possible values. in general, digit signals are represented by only voltages on a wire -0 volts ( which we called " binary o " or just "o" ) and 5 volts ( which we call " binary 1 " or just"1" ).
What type of digital phone systems are available from Telefonix?
Telefonix is the UK's leader in cellular and home phone service. Telefonix is famous for their reasonably priced data plans and their new IP Phone systems making it easier to personalize your own phone.
