What is the meaning of carrier explained

What is the meaning of carrier explained as follows

Carrier refers to some substance that transmits energy or carries other substances, and now also refers to all things that can carry other things in general.

All forms of communication of concepts and ideas, as well as the tools used to communicate them, can be called carriers. Multimedia represents the use of various forms of carriers. The carrier in a narrow sense refers to the tools of communication (e.g., paper, model, television, computer, mobile device, etc.); the carrier in a broader sense covers not only the tools of information transmission, but also the information itself, or the content of knowledge.

Human civilization has entered the 21st century information age, and the acquisition of information has progressed from the traditional face-to-face mode to transcending the boundaries of space and time. Various audio-visual media emphasize the need to make full use of visual, auditory and other sensory reception. In terms of the level of people's reception of information, the provision of information through a variety of carriers can strengthen the reception of information.

Expanded Information:

The concept of carriers in various fields:

1. Carriers in the field of biology

Referring to carriers that are used to recombine DNA in genetically engineered DNA technology. A self-replicating DNA molecule that transfers a DNA fragment (the target gene) to a recipient cell in genetically engineered recombinant DNA technology. The three most commonly used vectors are bacterial plasmids, phages, and plant and animal viruses. In real life, insulin can be administered by using a vector to place a plasmid that has inserted a fragment of the insulin gene into E. coli.

The plasmid that has had the gene fragment inserted is called a vector. The plasmid can replicate itself within the bacteria and does not interfere with the original activity of the organism.

2. Carriers in chemistry

Capable of carrying minute quantities of a substance **** with a constant quantity of a substance involved in a chemical or physical process.

Also known as carrier gas in the separation of gaseous substances. Radiochemical studies of nuclear decay and nuclear reaction processes generate the amount of elements is usually very small, about 10-8 to 10-12 grams, these substances even in solution can generate certain insoluble compounds.

But because of the small quantity it cannot form an independent phase, and it may be lost by adsorption on the walls of vessels or on the surfaces of other particles, and therefore cannot be separated by the ordinary methods of precipitation. To overcome these difficulties, a carrier can be introduced to form a *** precipitation and carry out the separation. It is known as a molecular transporter.

3. Carriers in IT

In information technology and communication systems, it is common to refer to the generator of information as the source, the receiver of information as the host, and the medium for disseminating information as the carrier.