Explain about transmission media, Computer Engineering

Assignment Help:

Q. Explain about Transmission Media?

These, also known as physical channels, can be either bounded or unbounded. Bounded media, in which signals representing data are confined to the physical media, are twisted pairs of wires, coaxial cables, and optical-fiber cables, used in most LANs. Unbounded media, such as the atmosphere, the ocean, and outer space inwhich the transmission iswireless, use infrared radiation, lasers, microwave radiation, radio waves, and satellites. Data are transmitted from one node to another through various transmission media in computer communications networks.

Twisted pairs are used in low-performance and low-cost applications with a data rate of about 1 Mbit per second (Mbps) for a transmission distance of about 1 km. Baseband coaxial cables used for digital transmission are usually 50- cables with a data rate of about 10 Mbps over a distance of about 2 km. Broad-band coaxial cables used for analog transmission (cable TV) are usually 75- cables with a data rate of about 500 Mbps over a distance of about 10 km. The lighter and cheaper fiber-optic cables support data transmission of about 1 Gbps over a distance of about 100 km.


Related Discussions:- Explain about transmission media

Rhythm, Rhythm Rhythm in art refers to the way that your eye moves thr...

Rhythm Rhythm in art refers to the way that your eye moves through a picture and can be thought of in a similar way to rhythm in music. Your eye will move through some picture

Change to palindrome, given a string S convert it to palindrome by doing ch...

given a string S convert it to palindrome by doing character replacement.convert S to palindrome with minimum character replacements

Prove boolean identities using boolean algebra, Prove the following Boolean...

Prove the following Boolean identities using the laws of Boolean algebra: ABC + AB ‾C + ABC ‾ = A(B + C) Ans. ABC+AB'C+ABC'=A(B + C) LHS AC(B+B')+AB(C+C') OR  AC+AB OR  A(B

Describe menu in dreamweaver, File Menu: Under it there are New, Save, Sav...

File Menu: Under it there are New, Save, Save as, Save as template, Import, Export, Preview in browser etc. options. Edit Menu: In this menu there are Cut, Copy, Paste, Undo,

Differentiate between http and ftp, Differentiate between http and ftp. ...

Differentiate between http and ftp. HTTP and FTP were developed to make Internet transmission better. FTP is utilized to exchange files among computer accounts, to transfer

Explain definition of fibonacci, Explain definition of fibonacci Where ...

Explain definition of fibonacci Where an input value gives a trivial result, it is returned directly, otherwise the function calls itself, passing a changed version of the inpu

Define word length, Define word length?  Every group of n bits is refer...

Define word length?  Every group of n bits is referred to as a word of information and n is known as the word length.

BCD ADDER, create a BCD adder combinational ckt. that adds 2 digit BCD inpu...

create a BCD adder combinational ckt. that adds 2 digit BCD inputs

What are common reason for error massages while copying file, Q. What are c...

Q. What are common reason for error massages while copying file? While copying files with copy, DOS in encounters any error, it displays a suitable error massage. The common re

What is associative search, What is associative search? The cost of an ...

What is associative search? The cost of an associative cache is higher that the cost of a direct mapped cache due to the need to search all 128 bit tag patterns to verify wheth

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