Data transmission, Basic Computer Science

Data transmission:

Most digital communication data is transmitted in a serial form, that is, only one bit at a time. Transmission of data in serial form means each bit is transmitted for only a very short time period. In most systems, the data transmitted requires less than a milli-second. After one bit is sent, the next bit follows; this process is repeated until all the desired bits have been transmitted. This type of system is often referred to as "Time Sharing", because each transmitted signal shares the wires for a short time interval.

Parallel data transmission is a continuous-type of transmission requiring two wires (or one wire and ground) for each bit to be sent. Parallel transmission is so called because each circuit is wired in parallel with respect to the next circuit.

With serial data, one pair of transmitting wires can be used to send enormous amounts of serial data. If the data were sent using the parallel method, then hundreds of wires would be required. Most computer systems use the parallel method to transmit data within them, however if the data must be sent to another system, serial data transmission is used.

An interpretation circuit is required to convert all parallel data to serial-type data prior to transmission. The device for sending serial data is called a "Multiplexer (MUX), and the device for receiving serial data is called a "Demultiplexer" (DEMUX). Figure shows a data transfer system.

21_data transmission.png

Posted Date: 9/13/2012 7:45:00 AM | Location : United States

Related Discussions:- Data transmission, Assignment Help, Ask Question on Data transmission, Get Answer, Expert's Help, Data transmission Discussions

Write discussion on Data transmission
Your posts are moderated
Related Questions
1.Add a Validation Rule for Date of Birth so no one under the age of 18 can be added to the table. Hint: subtract the DOB from today''s date and divide by 365.25 (watch the parenth

A* Search-Artificial intelligence:   A* search combines the best parts of uniform cost search that  called the fact that it's optimal and complete, and the best parts of gre

Word Processing (WP): Word Processing is one of the most widespread application software types in use today. Developed as a successor to primitive text editors that were popul

Frequency and Bandwidth: Let us try to understand a little about how information is transmitted. The information may be in the form of sound (human voice, music) or it may be

Question (a) Describe the following built-in functions and illustrate each using simple examples. Specify every possible parameters where required Replace() StrComp()


You are an engineer involved in the development of a financial system. During installation, you discover that this system will make a significant number of people redundant. The pe

QUESTION (i) Define each of the following terms: a) Interlibrary lending b) Manuscript c) Papyrus d) Community profile e) Mauritiana (ii) Explain with example

what is the difference between internet and world wide web?

Assume |s1|=|s2|=n and consider the functions defined, for any s1 and s2, as: (a) G1(s1,s2)=s1 xor s2, (b) G2(s1,s2)=(s1, s2, s1 xor s2). We have that: A. G1 and G2 are pseudo-ra