What is transmission in data communication?
Show
A-Level Exchanging Data Resources (16-18 years)
Data transmission is a means of transmitting digital or analogue data over a communication medium to one or more devices. It allows the transmission and communication of devices in different environments: point-to-point, point-to-multipoint, or multipoint-to-multipoint. Data transmission can either be analogue or digital, but is mostly earmarked for sending and receiving digital data. As such, data transmission is also referred to as digital transmission or digital communications. It works when a device aims to transmit a data object or file to one or multiple recipient devices. The digital data comes from the source device in the form of digital bitstreams. These data streams are positioned over a communication medium for transmission to the destination device. An outward signal can either be a baseband or a passband. Aside from external communication, data transmission may be done internally, between different parts of the same device. The sending of data to a processor from the random access memory (RAM) or hard disk is a form of data transmission. Types of Data Transmission
Comparison between Serial and Parallel Transmission
Types of Serial TransmissionThere are two types of serial transmission – synchronous and asynchronous. Both of these transmission methods use bit synchronisation. Bit synchronisation is necessary to identify the beginning and end of the data transmission. Bit synchronisation supports the receiving computer to recognise when data begins and ends during a transmission. Therefore, bit synchronisation offers timing control.
Synchronous and Asynchronous Transmission
Further Readings:
What is transmission and its types?There are two types of transmission media, namely guided and unguided. Guided transmission media are cables like twisted pair cables, coaxial cables, and fiber optic cables. Unguided transmission media are wireless, such as infrared, radio waves, and microwaves.
What is data transmission with example?Data transmitted may be digital messages originating from a data source, for example, a computer or a keyboard. It may also be an analog signal such as a phone call or a video signal, digitized into a bit-stream, for example, using pulse-code modulation or more advanced source coding schemes.
What is data transmission process?Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices. It enables the transfer and communication of devices in a point-to-point, point-to-multipoint and multipoint-to-multipoint environment.
What are the 3 types of data transmission?Data transmission can be rightly said to transfer the data between two devices using a transmission channel. It has mainly three types of data transmission such as simplex, half-duplex, and full-duplex.
|