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both but for analog usually a frequency Carrier is required
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What are types of data that can be electronically transferred?
In theory any data can be transferred electronically in the form of a organized series of values of zero(s) and one(s). Any kind of data is converted into digital form from analog form using ADC i.e. Analog to Digital Converter and then it is able to transfer over an electrical medium.
How can you convert the digital signal given on the speedometer in the car into radio waves which can be received some where else?
First of all digital signal cant be transmitted wirelessly. digital signal can only be transmitted through optical fibre in the form of pulses. so we have to convert digital signal to analog form with the help of DIGITAL TO ANALOG CONVERTOR ( D TO A CONVERTOR). Then this analog signal should be super imposed on carrier signal called MODULATION. modem can be used for that. then that signal can be transmitted to the air through alloted band width like cellular system with the help of transceiver. at the reciveing end we can demodulate the signal with the help of modem & can convert it back to digital form through A TO D CONVERTOR.
How are digital signals in radio broadcast converted to analog signals inside digital transmission equipment before sending the signals to the antenna for transmission?
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)
Difference between analog modulation and digital modulation?
Analog Pulse modulation is discreet in time but the formation is transmitted in continuous form. In digital pulse modulation, not only the time axis is discreet but the information is also in digital form. Examples of Analog PM are PAM and PTM i.e pulse amplitude and pulse time modulations respectively. Examples of Digital PM are PCM and PDM i.e pulse code and pulse delta modulations respectively.
What are analog and digital modes of operation of an instrument?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
What is the difference between a modem and a codec?
* 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.
Different types of signal encoding technique?
n Digital data, digital signal n Equipment less complex and expensive than digital-to-analog modulation equipment n Analog data, digital signal n Permits use of modern digital transmission and switching equipment n Digital data, analog signal n Some transmission media will only propagate analog signals n E.g., optical fiber and unguided media n Analog data, analog signal n Analog data in electrical form can be transmitted easily and cheaply
What type information system would be recognized by digital system?
A digital system can recognize digital data i.e. data only in form of 0 & 1, if data is not in digital form we have to convert it using analog to digital converters.
Does Ethernet transmit signals in digital form or analog form?
HDMI is a digital replacement for existing analog video standards, such as 3D, an Ethernet data connection and improved audio and video capacity.
Can a computer process information in both digital and analog formats?
Yes. Digital processing is the most commonly used form as the computer works with bits and byte. The most popular example of analog processing of data is ECG, where the signal are in analog form.
What are types of data that can be electronically transferred?
In theory any data can be transferred electronically in the form of a organized series of values of zero(s) and one(s). Any kind of data is converted into digital form from analog form using ADC i.e. Analog to Digital Converter and then it is able to transfer over an electrical medium.
How can you convert the digital signal given on the speedometer in the car into radio waves which can be received some where else?
First of all digital signal cant be transmitted wirelessly. digital signal can only be transmitted through optical fibre in the form of pulses. so we have to convert digital signal to analog form with the help of DIGITAL TO ANALOG CONVERTOR ( D TO A CONVERTOR). Then this analog signal should be super imposed on carrier signal called MODULATION. modem can be used for that. then that signal can be transmitted to the air through alloted band width like cellular system with the help of transceiver. at the reciveing end we can demodulate the signal with the help of modem & can convert it back to digital form through A TO D CONVERTOR.
What translates a computer's digital signal?
Digital to analog converter.An analog to digital converter and digital to analog converter are present in a computer. they serve this purpose. They are present in the form of ICs inside.
Similarities between digital and analog devices?
Digital and analog devices share some similarities, despite their fundamental differences. Here are some similarities between digital and analog devices: Input/Output (I/O) Capability: Both digital and analog devices are capable of receiving input data and producing output data. Input can be in the form of various signals or data, and output can be in the form of displays, sounds, or other forms of feedback. User Interaction: Both digital and analog devices can be interacted with by users to perform tasks or operations. For example, both digital and analog devices can have buttons, switches, knobs, or touchscreens that allow users to interact with them and control their functions. Processing Capabilities: Both digital and analog devices are capable of processing data or signals in some form. Digital devices process data in discrete binary values (0s and 1s), while analog devices process continuous signals with varying voltage or current levels. Signal Conditioning: Both digital and analog devices may require signal conditioning to ensure accurate input and output. For example, analog devices may require amplifiers or filters to condition signals, while digital devices may require analog-to-digital converters (ADCs) or digital-to-analog converters (DACs) to convert between analog and digital signals. Applications: Both digital and analog devices are used in a wide range of applications, such as communication systems, audio and video processing, control systems, measurement and instrumentation, and more. They can both be used in various fields, including electronics, telecommunications, medical devices, automotive systems, and industrial automation, among others. Functionalities: Both digital and analog devices can provide various functionalities, such as data storage, data processing, data transmission, and control functions. While the implementation may differ due to the nature of digital or analog signals, the overall functionalities can be similar in some cases. Integration: Both digital and analog devices can be integrated into larger systems or networks to perform complex tasks or operations. They can be combined to create hybrid systems that leverage the advantages of both digital and analog technologies. Despite these similarities, it's important to note that digital and analog devices differ significantly in how they represent and process data or signals. Digital devices use discrete values and binary logic, while analog devices use continuous signals and analog circuitry. Understanding these differences is crucial in designing and working with digital and analog devices effectively.
What device works with continuous data?
Continuously varying data is analog data; by contrast, all digital data is discrete (there are steps between one value and the nearest next possible value). Devices operating on analog data, in context with computers, are primarily analog-to-digital converters (ADC). These take an analog input, sample this value periodically, and produce the nearest corresponding digital value for further (digital) processing. The analog input can describe a lot of different aspects: the fan speed, a temperature, an electric voltage read from a microphone or other audio input, etc. The reverse process is called digital-to-analog conversion (DAC), which converts a digital value into a corresponding analog value (typically as an electric voltage or current), which is then generally transformed into another form, such as an audio output to drive a pair of speakers. It is important to note that DAC itself does not operate continuously varying data, since the analog data generated follows the same discrete steps as the digital input data does. However, subject to the physics of the following conversion (e.g. a loudspeaker), the resulting physical signal might well be truly analog again (e.g. the variation in air pressure caused by the speaker).
What is the difference between analog and digital modulation Does it depends on baseband signal?
The basic difference is that in analog modulation the modulating signal is analog signal and in digital modulation it is in digital form.
How are digital signals in radio broadcast converted to analog signals inside digital transmission equipment before sending the signals to the antenna for transmission?
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)
