Besides external communication, at times, data transmission can be transported to a device internally and in this matter, the hard disk or RAM (random access memory) that sends data also turns into a kind of data transmission.
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Kinds of Data Transmission
Data transmission can happen in a couple of methods:
Parallel Data Transmission – When it is binary data, then it comprises 0s and 1s and it might be arranged into sets of n bit and computers do produce as well as take data in sets of bits. A person can send data n-bits through the use of grouping and it is known as parallel transmission.
This method of data transmission is used when:
- A huge amount of data needs to be sent over to the communication lines.
- The need arises to send data to the receiver quickly.
- When the data happens to be time-sensitive.
Serial Data Transmission – Here, in this kind of data transmission, 1bit follows another and so, people require only 1 communication line in place of 1 for transmitting data between a couple of communicating devices.
This process of data transmission turns helpful:
- This process is commonly utilized for data transfer to medium-distance or long-distance.
- In Universal Serial Bus or USBs.
- When the need arises for transmitting data to other devices that is called external data transfer.
- Serial transmission transmits data bits in a particular manner, one after another. So, data bits are found in sync with one another. Due to this; it maintains the integrity of data.
Benefits of Data Transmission
Data transmission turns hugely helpful in computer networking equipment, like modems, repeaters, local area networks, wireless network access points, repeater hubs, adapters, microwave links, etc. In telephone networks, the usage of digital communication is prevalent to transfer numerous phone calls over a similar copper cable through PCM (Pulse Code Modulation). In fact, telephone exchanges have turned software controlled and digital, thus, they facilitate several value added services.
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