Message quality and quantity, Basic Computer Science

Assignment Help:

Message Quality and Quantity:

Quality of transmission is a very important .consideration in telecommunication. Voice communication can use a narrow bandwidth, which means the reproduction of sound is not of high fidelity because the human ear is adaptable and can discern words even if not entirely faithfully reproduced. The same is not true for the transmission of music, where we expect high quality sound; for television broadcasting, where our picture must be sharp and the quality of colour high; and especially for data transmission, where inaccurate bit transmission can result in garbled and worthless messages. 

There are many techniques, besides providing more bandwidth than actually needed, to improve transmission quality and reduce the noise. One such technique is multiplexing. Multiplexing is of two types: Frequency Division Multiplexing, (FDM) and Time Division Multiplexing (TDM). Frequency Division Multiplexing is used to split a channel into several discrete narrower ones for simultaneous but separated transmission. On the other hand, time division multiplexing uses a common channel for several messages but at intermittent times; each signal taking turns on the same channel. In other words, multiplexing is a technique that is often used to interleave data so that they can be carried more efficiently in the same bandwidth. It is similar to concentrating but replaces many lines with one transmission path of .greater capacity. It must be remembered that multiplexing is a sharing technique only. There is no increase in the total information than can be transmitted.  


Related Discussions:- Message quality and quantity

What is the definition of macro?, Definition of the macro A macro is a col...

Definition of the macro A macro is a collection of repetitive instructions in a program which are codified only one time and can be used as many times as required. The major differ

Explain the types of memory and explain how each work, Problem: a) ...

Problem: a) Explain the basic functions of a computer: inputting, processing, storing and outputting. b) List four types of memory and explain how each wor

What is electrical energy, the chemical reactions in a battery produce ____...

the chemical reactions in a battery produce ____________, each of which carries energy.

Working principle of master slave j-k flip flop, Problem 1. Obtain the ...

Problem 1. Obtain the set of prime implicants for f = Σ m (0,1,6,7,8,9,13,14,15) . Obtaining the set of prime implicants: 2. Draw the logic diagram of a divide by

Fundamental of algorithm, exchanging the two variables: problem,algorithm d...

exchanging the two variables: problem,algorithm development,discription

Discuss the roles of system analysts in detail, Question 1 Explain the ...

Question 1 Explain the following system design tools in detail System Flowcharts Decision tables Decision trees Organization charts Question 2 Write s

Nursing care activity module, Nursing Care Activity Module Retrievi...

Nursing Care Activity Module Retrieving of identification data of patient  Assessment of the patient  - Physical - Mental - Personal - Socio-c

Library function, Library function :   These are the functions supplied...

Library function :   These are the functions supplied with the programming language. The code or definition of library functions does not have to be written in a user program w

Grammar, Given the following grammar: -> [ , ] | -> | { } -> a...

Given the following grammar: -> [ , ] | -> | { } -> a | b | cwhich are the strings generated by the grammar? Show the parse tree(s). a). { [ a , b ] }b). [ { a } , b ]

Arinc 429 data bus specifications, ARINC 429 DATA Bus SPECIFICATIONS: A...

ARINC 429 DATA Bus SPECIFICATIONS: ARINC 429 sets specifications for the transfer of digital data between aircraft electronic system components and is a "One-way" communication

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd