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what is a network – its types

what is a network – its types

 
Network ek dusare se jo computer connect hote hai ek sath ap usse bhi network kah sakte hai Network bahut sare computer jo ek sath connect hote hai wo network ke hi kahlate hai  hum jo 
 
Phone call karte hai dusare logo ko jo bich me jo tower ka kam karta hai wo bhi network kahlata 
 
Hai  computer ke apas me judana network kahlata hai  computer network ke maddat se hum ek hi Jagh rahkar dusare jagh ka kam kar sakte hai 
 
 
network device

Computer Networks Components

(1)Hub
 
(2)Switch
 
(3)Routers
 
(4)Gateway
 
(5)Modem
 

Defination Of Network Components

 

What is Hub ?

 
Hub
 
 
Hub ek parkar ka networking device hai jo ane wale sare jankari ko  network ke jariye  aage Bhejata hai isme hub ke pass bh jankari ate hai  to wo aage usse connect ke sabhi device ko
 
 
Wo jankari bhejata hai  is case me hub ko ye pata nhi hota konsi jankari kis ke liye qki hub Ko ye pata nhi hota ke kon se jankari kis device ke liye hai isliye wo sabhi  parkar ki jankari 
 
 
Packet  network me breadcast kar deta hai  hub ka dusara name non-intelligent device Hai hub me half- duplex transmission mode ka paryog hota hai ?
 
 
 
What is Switch ?
 
Switch
 
Switch bhi ek network device hai jisse intelligent device ke name se bhi jana jata hai switch ka Paryog  chote or bado dono tarh ki network me hota hai switch is khasiyat ye hai  ki jab iske 
 
 
Pass kese device ke koi jankari aate hai to use sidhe broadcast nahi karta q ki iske pass apna Data store karne ka space hota hai jaha wo sunichit karta ki aane wale jankari ke packet konSi device ke liye  hai.
 
What  is Routers ?
 
 
Routers
 
 
Router ek networking device hota hai jiske kam se kam do network apas me judte hai isme ek Software ka paryog hote hai jsike paryog se ek network se data dusare network ya device me
 
 
Transfer hota hai  ye ek parkar ke networking device ke roop me bhi jane jate hai  jo alag alag Protocol ke anusar kam karte hai  ye osi model ke third layer mane jate hai  router network ko
 
 
 
Ip address ke anusar hi bhejata hai  q ki isme  router data  ko ip- address ke aadhar par filter karta hai
 
 
What is Gateway ?
 
Gateway
 
 
Gateway node uss computer ko kaha jata hai  jiske istemal kise company ke network  ko ya Isp ke traffic  or bandwith ko control  or  manage karne ke liye hota hai  jydatal isp khud hi gatway
 
Pardan karte hai user ko gharo me  jisse ki wo asani se internet se connect ho sakte yah gateway node Uss computer ko kaha jata hai  jiske istemal kise company ke network dawara  isp ke traffic or 
 
 
Bandwith ko control or  manage karne ke liye hota hai.
 
ISP –  Internet Service Provider
 
What is Modem ?

 

 
Modem
 
 
Modem modulate ya demodulate  ka roop hai  ye aise device hai jo signal ko modulate karke anlog Roop me bhejte hai  wase modem me jyda jarurat lan me nahi hote lekin inke jarurat  dusare
 
Internet connection jaise ki dial – up  or dsl me jarur hote hai  modem bahut parkar ke hote hai Jo ki speed or transmission rate me ek dusare se differ karte hai  modem ka full form “Modulator demodulator” hota hai jo ki allow karta hai    
 
Types of Network
There are 11 types of  network today with full- form
 
  1. Pan  –        Personal Area Network
  2. Lan  –        Local Area Network
  3. Wlan –       Wireless Local Area Network 
  4. Can    –      Campus Area Network
  5. Man –        Metropolitian Area Network
  6. Wan –        Wide Area Network
  7. San –          Storage Area Network
  8. San –          System Area Network
  9. Polan –      Passive Optical Local Area Network
  10. Epn –         Enterprise Private Network
  11. Vpn –         Virtual Private Network
 
 
Types of  Network Defination 
 
1.  Pan

 

 

pan network

 

 

Personal area network personal network usse kahte hai jo hamara personal network hota hai Like – mobile ka blutooth, hotspot, own network ,jo apna personal network hota hai usse bolte hai
 
 

2. Lan 

 

Lan network
Local area network ye network bulding ke coverage ya school me use hota hai  jo sirf apne area me hi setup rahta hai isliye iske lan network kahte hai 
 
 

(3)Wlan

 

wlan network

 

 
Wlan ye network bina kise connection ke sangvad me kam aata hai  ye network radio or infrared Ke liye kam aata hai  ye ek trah ka local area network hai 
 
 

(4) Can

 

can network

 

 
Man network ye network ya hum isse controller area network ke name se jante hai  bahut sare lan ko 
 
 
Aaps me connect karke bada network banane ke liye  iska istemal kiya jata hai  is tarh ke network 
 
 
Aagar college campus me istemal hone lage toh   usse campus area network  can bolte hai 
 
 
(5)Man
man network

 

 

Man network ek sahar me jitne chote bade college  government office ke network ko jodhkar
 


Rakhta hai  ye network  Lan se bhi bada network hota hai is tarah ke network college meUse hone lage hai

(6)Wan

 

wan network

 

Wan network pure dunia me use hota hai  ye network ka use ek state se country  ya phir

 

Internet ko connect karne ke liye usse kiya jata hai  wan network ke range 100000 km hai Jaise earth or setllite ke bich ke example – mobile phone, satetlite

 

(7)San 

 

san network kya hai

 

ye storage network  jo ki remote computer jaise  disk library  or optical ko server ko acche se Jodhta hai  san ki  lagat or jatilta kam hote ja rahe hai

(8)Polan

 

polan network kya hai

 

Polan ek optical cable netwok ek fiber optical technic hai  jo broaband network ko  customer  tak Pahuchne ke liye hota hai  ye cable bahut hi jaruri hota hai.

 

(9)Epn

 

epn network kya hai

 

Ye network nijee network ek computer network hai jo ki bade company or office ke sath

 

Safty tarike se  jodne se maddat karta hai  ye network computer ko sanjha karne ke liye Bana hua hai

 

(10)Vpn

 

vpn network kya hai

 

Virtual private network ye network jiska use private network or wifi secure ke iye kiya Jata hai  vpn ka use computer or mobile  dono me use karke data ko secure kiya kiya jata hai.

 

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