Both common 'TV Coax' and 'Type F' cable connectors are commonly used to support both digital and analog video signals.
Plain TV coax connectors (male and female) can easily be taken apart by anyone without having to use any tools, so they are commonly used for making simple cable connections for tv antennas and digital tv set-top boxes.
Type F (male and female) connectors use screw threads so that, by using simple tools such as wrenches and/or hand pliers, they can be tightened-up too hard to be loosened and disconnected by hand.
That is why Type F connectors are regularly used for making signal connections for cable and satellite tv systems and for computer broadband cable systems.
it is an DAC (Digital to analogue converter
digital
Digital signals get corrupted by the noise, or overloa of information Overload of information, static in the air, etc
FDM stnds for frequency division multiplexing and it is used only in case of analog signals because analog signals are continuous in nature and the signal have frequency. TDM-stands for time division multiplexing and it is used only in case of digital signals because digital signals are discrete in nature and are in the form of 0 and 1s. and are time dependent.
The digital signals is not converted BACK to analog! it is transmitted in digital form and the receiver is converting it back to analog to drive the speakers. The signal from the microphone is converted from analog to digital with an A/D converter chip, digital signals consist of pulses of different lengths that is switching the transmitter on and off in about the same way as the old Morse code transmissions but at a much higher rate (millions of times higher)
DVI-I
A DVI-D cable is a digital video display connector used in computers. It supports the same resolutions as VGA which has been the analog standard for many years. Digital signals do not suffer from timing errors that can sometimes reduce the clarity of an image delivered with VGA. Note that there are two other formats. DVI-A uses the DVI connector but it carries an analog signal identical to that of VGA connector. A DVI-I carries both digital and analog signals and therefore provides two video links within the same cable. Finally, DVI digital signals are compatible with HDMI video signals. DVI does not carry sound in either digital or analog video formats whereas HDMI supports sound within the same cable.
Digital signals are measured in bits per second (bps).
digital signals have two values. 0 and 1.
BNC is a type of connector for co-ax cables. It is commonly used in the broadcast industry although seen far less in domestic situations. There are two ways that audio can be carried with a video signal over a single co-ax cable. The first is by using RF signals, as are used in terrestrial broadcasts and picked up by an antenna. Signals can be either digital or analog. The alternative is a broadcast digital signal called SDI (serial digital interface). SDI carries digital component video, audio and other control data and represents the best quality video signals available. The interface supports SD and HD signals and runs at 270Mbit or 1.5Gbit, depending on the resolution. Unfortunately, SDI is not seen outside broadcast facilities. Despite the ease of use and compact size of the cables, SDI does not support the copy protection that is demanded by content producers and so has never made it to domestic equipment.
Analogue signals are more vulnerable to error than digital signals. See the related question "Why digital signals are more noise free than analogue signals?" for more details.
modem is the device that carries digital signals
To measure time between digital signals.
Digital signals are measured in bits per second (bps).
Digital signals
it is an DAC (Digital to analogue converter
digital video camera