List all types of devices you have and identify their input/out data and communi
ID: 3827955 • Letter: L
Question
List all types of devices you have and identify their input/out data and communication methods (Guided or unguided they use)?
What is your opinion of using digital signals over analog signals?
What are the three basic components of all signals and how do the signals behave with their changes? (Include signal equations, diagrams and explanations)
What is the frequency in Hertz of a signal that repeats YX, XXX times within one minute? What is its period, data rate and wavelength? (Where Y is the first number digit and X is the number of 0s in your student id)
What is the bandwidth of a signal composed of frequencies from Y0 Hz to Y00 Hz and data rate? (Where Y is the last number in your student id)
Explanation / Answer
Answer) The devices which are used by me include the mobile phones, a broadband modem, WIFI router, FM Radio.
The mobile phone, FM Radio, the wifi router all follows the unguided tranmission communication protocol.
The input signals received by the mobile phones are the electromagnetic waves, the analog signals are used in fm radio for receiving the data from the source.
The broadband modem uses guided transmission communication protocol in which various wired media are used to connect the transmitter and the receiver. The types of signals which are taken as input in it vary with respect to the medium used. for example the optical fiber cables uses digital transmission that is in the presence of light it is 1 and in the absence of light it is 0.
Digital signals are basically quite good to used as there doesn't exist any confusion in it while retransmission of the data. e.g. if a packet is lost than it shows that is is completely lost and the whole of the packet is transmitted again.
The three basic components of the signals include the TRANSMITTER from where the signal is transmitted, the MEDIUM or CHANNEL through which the transmission takes place and the RECEIVER which catches the transmitted signal.
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