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| Information, Analog Messages, Digital Message
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Keywords
- Information
- Analog Message
- Analog signals
- Types of Analog Messages
- Amplitude
- Frequency
- Digital Message
- Audio Signals
- Video Signals
- Radio Signals
- Benefits of Analog Signals
- Disadvantage of Analog Signals
- Digital Signals
- Binary code
- Digital Message
- Digital Television
Information
The concept of information is central to communication. A message means the physical manifestation of information produced by a source. System handling messages convert them into electrical signals suitable for a certain transmission media.
Analog Message
Analog messaging means that information has to be transmitted through analog signals. These signals are constantly varied and can take different values with themselves. These properties of analog messaging enable them to use them in different fields.
An analog message is a physical quantity that varies through time, usually in a smooth and continuous fashion. Examples of analog messages are acoustic pressure produced when you speak or light intensity at one point in a television image. One example of an analog message is the voice on conversional subscriber telephone lines.
Since the information resides in a time-varying waveform, communication systems should deliver this waveform with a specific fidelity. Because the strength of the signals may vary between 30 dB to 100 dB depending on the application, the analog system should have good linearity from the weakest signal to 1.000 to 10,000 million times stronger signal values.
Analog Signals
Analog signals are constant and change permanently over time. These signals contain two most important aspects
AMPLITUDE
The maximum intensity of the signal is called amplifies. It measures the strength or volume of the signal.
Frequency (Frequency)
The speed of signal variations is called frequency, which is measured in HZ.
Types of analog messaging
Analog messaging can be divided into different types.
Such as
Audio signals
Audio signals contain sound waves in analog form. For example, the sound is converted into electrical signals with the help of microphone.
Video Signals
The Video signals are transmitted through analog signals. Older television systems used this technique.
Radio Signals
The Radio broadcast also uses analog signals that are broadcast on various frequency.
Benefits of Analog Messaging
The formation and process of analog systems is relatively easy.
Representing Natural Signals
Analog signals are best represented by natural factors such as sound and light.
Disadvantages of Analog Messaging
Noise (Noise)
Analog signals are greatly affected by the noise. This reduces the quality of the signal.
Deficiency in accuracy
The accuracy of analog signals may decrease during remote communication.
Data Compression
Analog signals cannot be effectively compressed. Due to which it is very difficult to transmit large amounts of data.
Compare analog and digital messaging
Noise effect
Digital signals are less affected by the noise. On the contrary, analog signals have a high problem of noise.
Data compression and storage
Digital signals can be easily compressed and stored. But it is difficult to store and compress analog signals.
Distance
Digital messaging is more effective in remote communication. While the accuracy of the analog messaging may decrease with distance.
Date of Analog Messaging
The history of analog messaging is very ancient and has been used for many centuries. Early radio broadcasting and television transmission were based on analog signals. At that time, Analog Messaging had revolutionized the world of telecommunications and is still used in some fields nowadays. For example broadcasting and old audio video recording systems etc.
Analog messaging paved the way for technological development and founded the communication system. Although most communications have become digital in modern times. But the importance of analog messaging still exists. And it is being used in many fields.
Digital Message
Digital messaging information is a way to transfer information. In which the data is displayed in specific and disconnected value (bits). These binary numbers are based on system. Where information is in the continuation of 0 and 1.
Binary System
All information in digital messaging is displayed in the binary system. There are two values (0 and 1).
Digital Message
A digital message is an ordered sequence of symbols selected from a finite set of discrete elements. Examples of digital messages are the letters on this page or the keys of a computer terminal. When we press a key at our computer terminal, each key stroke represents a digital message encoded into a set of bits for binary transmission. Since the information resides in discrete symbols, a digital communication system should deliver these symbols with a specific degree of accuracy in a specified amount of time.
Pixals and Samples
Photos and sounds are divided into small pixels or samples when converting into digital format.
Data Compression
Digital signals can be effectively compressed. Which makes it possible to transmit and store large quantities of data.
Examples of this are as follows
Internet communication
All data on the Internet is in digital form. Whether it’s emails, web pages and messages of social media, etc.
Digital Television
The latest television broadcasting is based on digital signals. It’s provide excellent picture and sound quality.
Mobile Communication
All mobile phones are in digital form. Which makes it possible to make clean and clear calls and high -speed Internet services.
Benefits
Protect from noise
Digital signals are less affected by the noise. And which provides the most transparency.
Improved Quality
Digital signals have the highest accuracy and quality. Whether it’s a sound, video, or data, etc.
Compression and Storage
Digital data can be easily compressed and stored. This allows it to help and store large -scale data.
Disadvantages
Complexity
Digital systems have more complexes than the formation and process of analog systems.
Bandwidth Required
More bandwidth is needed to move digital signals. Especially when it comes to high defense video or other large files etc.
Power Confirmation
Digital devices usually use more electricity. Especially when the complex requires processing.
Compare digital messaging from analog
Transparency
Digital signals have a low noise effect. Which leads to more transparency.
Analog signals are more affected by noise.
Data compression
Digital data can be effectively compressed. While analog data is difficult to compress.
Correction
Digital signals have high accuracy, especially in long distance communication
Date of Digital Messaging
Digital messaging began in the middle of the 20th century. Early computers and telecommunications systems used digital techniques. In the 1980s and 1990s, digital communications made rapidly, which has made the Internet, mobile phones, and digital broadcasting common.
Digital Messaging uses
Computer Networks
All computer networks, such as LAN and WAN, are based on digital communication.
Cyber Security
Sensitive data is preserved with the help of digital messaging. And by encryption techniques it is protected from unauthorized access.
Digital Media
Music, movies, and e -boxes, etc. are available in digital format and can be easily shared and stored.
Digital messaging has revolutionized the field of information transfer and communication. This has not only improved the accuracy and quality of information. In fact, it has brought the world closer. Where we can immediately contact any corner of the world.
