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The correct answer is a little strange.
The first pictures were what we now call faxes and were transmitted over telegraph wires before the invention of the phone.
This was in 1843
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∙ 11y ago
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Which type of output device codes and encodes documents so they can be transmitted over telephone lines?
fax machine ;)
What modifications does a phone for the hearing impaired have compared to a normal phone?
A keyboard entry to generate codes in response to an operator's key selections. The code is transmitted to voice telephone lines through an acoustic coupler with a telephone receiver cradled thereon.
What causes lines in first few pictures?
see discussion area for this question
What hardware is needed to convert the digital signal of the computer to signals that can be transmitted through telephone lines?
modemmo-dem =MOdulatorDEModulator
What is a special kind of telephone hookup that lets one computer talk to another computer?
A modem (short for MOdulator DEModulator). It converts data into a stream of tones which can be transmitted over telephone lines. Sounds similar to a fax machine, if you've heard one.
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.
Pictures of intersecting lines?
these are intersecting lines.
What are the advantages of telephone lines?
boring
Is there heat on telephone lines?
no not at all
What are cable television lines and telephone lines examples of?
Communication channels.
Where can one purchase 2 telephone lines?
One may purchase two telephone lines from most telephone providers. Traditional telephone service providers will require you to install another stand alone telephone line, whether this be a private or a business line. For fiber lines the options are more complicated and involve using existing fiber telephone lines and a splitter. If it is simply an additional telephone number one needs, then most telephone service providers are happy to provide an extra number and the first extra number may be free of charge on private lines.
How is electricity transmitted along power lines?
trougth wires
