Skip to main content

Networking


Networking

 Computer networking
Key Data communications Terminology
Session: communication Dialog between network users or applications
Node: A network attached device.
Link: connect adjacent Nodes.
Path: end to end route within anetwork.
Curcuit: The Conduit over which data travels.
Protocol: Set of rules governing communication.
Transmission Media/Link/Channel
This is necessary to have pathway OR media to transmitted data from one point to other point. The term media mean the device that transmits voice or data from a point to other point.
What is Guided Media:
In guided media message flow through physical media like cables
Types of cables:
 (1)-what is  Coaxial cable?
Coaxial cable has copper core {inner conductor} with an outer cylindrical shell for insulation
(2)-  what is Twisted Pair Cables?
Twisted pair wire is most useable wire. Here two types of twisted pair cable are discussed like shielded and unshielded twisted pair cable.
Shielded twisted pair  short cut is STP. This is consists of pairsof insulated solid wire surrounded by a braided or corrugated shielded. Other types of twisted pair cable is unshielded twisted pair shortly we called UTP this is most frequently useable networking cable.
(3)- what is  Fiber Optic?
Fiber optic consists of thousands of very thin filament of glass fibers which can conduct light pulse generated by laser at transmission frequencies that approach the speed of light. Fiber optic has greater data transmission rate as well as the great security interference tapping.
What is Unguided Media or Radiated :--
In Radiated media message is broadcasting through air like microwave, infrared or satellite
Infra-red: now a days many systems using infra-red communications. This is commonly a directional infrared light signal transmitted into air and received nearby devices.
Radio and Microwave: these are the signals we think as being television, radio and satellite, but they are now being put to use in  Ethernet wireless and Bluetooth communications technologies.
Satellites: satellite contains a transponder consisting of  radio transmitter and receiver. Ground on one side of ocean sends signal to satellite which amplifies and transmits amplifies signal at different angle than it arrived at to another ground station on other side of ocean.

Dear student in the next article we will discuss what is digital signal, what is network network classification what is LANs WANs Network Topologies  RJ45 which devices are used in Networking and many other things which used in networking and most useable thing in computer networking in offices 


Labels:

Comments

Post a Comment

Subscribe to: Post Comments (Atom)

Popular posts from this blog

History of Google site and top 10 apps

History of Google site and  top 10 apps  Have a nice day dear student today I am telling you about History of    Google site and other Google site partner like     YouTube. YouTube is the partner of Google site. in this article I tell you Briefly about Google site and its other products like Google analytics, what is Google add ward , brief introduction of Google mail       tell you about Google express    and many other information     like how to make a Gmail or how to Gmail sign up new account .after this I tell you after complete your work or checking Google mail how to Gmail sign out. What is gcp ? And at the end of this article i tell you how to you    Google fiber speed test by using a technique. History of Google Site in short words Google was founded in 1998 by Larry Page and Sergey Bring while they were the Ph.D. students at Stanford University in California . Now a days It owner is information technology company it name is Alpha-Bet Google is the on
Post a Comment
Read more

MS Office Microsoft excel 2010 Short Key Lecture

      MS Office  Microsoft excel 2010 Short Key Lecture                                              ms excel short key                                               most use able short key in ms excel Number 1 Dear today I tell you most use able important short keys witch used in Microsoft Excel daily work in office work   1- Ctrl+shift+! Used to applies the number format with two decimal places, thousands separator,   2- Ctrl+1 key used to display the format cells dialog box.  3- Ctrl +shift+ # key used to applies the date format with the day, month, and year.  4- Ctrl+shift+~key used to apples the General number format format.  5- Ctrl+shift+&key used to applies the outline border to selected cells.  6- Ctrl+Shift+^ key used to enters the current time.  7- Ctrl+shift +% key key used to Percentage format with no decimal place.  8- Ctlr +shift+[key used to unhides any hidden rows within the selection.  9- The short key unhide a columen is
13 comments
Read more

Analog Digital Computer Education

computer education Dear student in this lacture or article I gave you short introduction about  computer technology,  types of computer and I inform you that when the first computer introduced in the world, highest storage of super computer in Pakistan which organization has large super computer in Pakistan,  computer education   and many more information about computer related after reading my this  central computer related  article you knows all information about computer related basic and advance information. After reading this article you should be able to maintain your   it computer  in computer lab or any other place. This image have bee taken from freepik for only educational                                    purpose this site  link  is that Definition of computer Word computer derived from Latin word “compute”witch mean to calculate. “Computer is an electronic machine” Computer can accept data process the data and give us information   Three types o
Post a Comment
Read more