what is data communication transmission

These are commonly used in power distribution (at low frequencies) and in communications (at high frequencies). Biodiversity is most simply defined as the variety of life and its processes. A transmission line may be defined as a device for transmitting or guiding energy from o..

FAX Machin..

Advantages - The advantages associate with digital communication systems include (i) A common format for encoding different kinds of message signals (e.g., speech signal, video signal, computer data, etc.) for the purpose of transmission. (ii) An improved security of m..

. A good quality service can be continuously ensured by a global operational satellite system. Thus, communication satellites would give a valuable service in addition to the submarine cable and high frequency radio systems. Geostationary communication satellites have enabled no..

AIDS - AIDS is a disease that can prove to be fatal. The immune system of the body is affected. Acquired Immuno Deficiency Syndrome which is the medical expansion for AIDS was first detected in June 1981 in USA. The disease is caused by a retrovirus - HIV (human immuno deficiency virus). Immune res..

Disease Mode of Transmission Symptom Prevention Control Malaria Caused by protozoan plasmodium through the bite of the female anopheles mosquito High fever, rigorous which is repeated on or 4th day Prevent mosquitoes from biting and prevent them from breeding A quinine..

Elements of a Communication System..

The above figure depicts the elements of a communication system. There are three essential parts of any communication system, the transmitter, transmission channel, and receive..

An optical fiber is a dielectric wave guide that transports light signals from one place to another just as a twisted-wire pair or a coaxial cable transports electrical signals. It consists of a central core within which the propagating electromagnetic field is confined and which is surrounded by a..

Transmission of Messages - The messages are transmitted in the form of electrical impulses along the fibres of the neuro..