Data Communication Kya Hai-Full Detail In Hindi

Data Communication Ek Esa Process Hai Jisme Digital Data Ka Transmission Hota Hai Ek Device Se Dusre Device Me.Data Pathway Ke Madhyam Se Transfer Hota Hai Jisse Communication Channel Kaha Jata Hai

Data Communication Advantages-

Ye Modern Computer Ki Power Or Storage Ko Fully Utilize Karta Hai.

 Duplicate Files Ko Eliminate Karta Hai

Data Transmission Ki Cost Ko Reduce Karta Hai

Time Save Karti Hai Data Ke Prepration Me

Communication Channel – Inme Ek Traf Transmitter(Source) Hota Hai Or Dusri Traf  Reciver(Destination). Source Hmesha He Single(Ek) Hota Hai Par Destination(Recivers) Multiple Ho Sakte Hai

Communication Channel 3 Trah Ke Hote Hai-

Simplex-Yanha Communication Unidirectional Hote Hai(Unidirectional Means-Do Device Me Se Sirf Ek He Device Data Transmit Kar Sakta Hai Aur Dusra Device Recive Kar Sakta Hai.

Example-Radio Broadcasting,Television Broadcasting

Half Duplex-

Ye Communication Bidirectional Hai(Yanha Dono Device Transmitter Ya Reciver Ki Trah Act Karte Hai  But Ek Time Me Sirf Ek Device Data Transmit Kar Sakta Hai

Example-Walkie Talkie

Full Duplex-

Yanha Communication Dono Direction Me Hoti Hai Dono Device Ek Sath Data Ko Transmit Kar Sakte Hai

Example-Telephone Lines

Data Communication Channels-

·        Standard Telephone Lines

·        Coaxial Cables

·        Microwave Transmission

·        Satellite Communication

·        Fiber Optics

Network-

Computer Network  Ek Group Hota Hai Computers Ka Jisme Computer Ek Dusre Se Connected(Jude) Hote Hai  Communication Purpose Ke Liye

“Simple Bhasha Me Ham Keh Sakte Hai Ki Computer Ka Group Ek Dusre Se Communicate Karne Ke Liye Apas Me Jude Hote Hai Jise Network Kaha Jata Hai”

Network Ka Use Kyu Kiya Jata Hai-

·        Communication-Network Ka Use Karke Ham Logo Se Communicate Kar Sakte Hai  By Using Email,Video Conferencing,Chat Room Etc .Ye Sbhi Task Ham Network Ki Help Se He Kar Pate Hai

·        Sharing Hardware-Laser Printer Iska Sabse Acha Example Hai Means Jese Kai Computer Sirf Ek Laser Printer Se Connected Hai To Ham Kisi B Computer Se Print Commant Deker Print Karwa Sakte Hai

·        Sharing Files,Data Aur Information-Files,Info,Video ,Images Etc Ye Sbhi Files Ham Network Ke Karan He Share Kar Pate Hai

·        Sharing Software- Hm Software Ko B Share Kar Pate Hai Network Ke Karan.Apne Teamviewer Software Ke Bare Me Sunna Hoga Jiska Use Karke Ham Team Me Kam Kar Sakte Hai

Different Trah Ke Computer Networks-

Lacal Area Network

·        Lan-Local Area Network

·        Range-1km(Building)

·        Media-Guided Media

·        Connecting Device-Hub,Switch

·        Speed-High Speed

·        Location-Home,Offices,Group Of Buildings

·        Error Rates-Lowest

·        Setup Cost-Very Cheap(Bhut Kam)

Type Of Lan-

·        Star Lan

·        Right Lan

·        Bus Lan

Metropolitan Area Network

·        Man- Metropolitan Area Network

·        Range-50km

·        Media-Guided As Well Unguided

·        Connecting Devices-Modem &Amp; Router

·        Speed-Moderate

·        Location-Single City

·        Error Rates-Moderate

·        Setup Cost-Very Moderate(Medium)

Wide Area Network

·        Wan-Wide Area Network

·        Range 50 Km Se Jyada

·        Media-Unguided Media

·        Connecting Devices-Radio And Microwaves

·        Speed –Low

·        Location-Ek Country Ya Pura World

·        Error Rates-Highest

·        Setup Cost-Very Costly(High)

Type Of Wan-

·        Pstn(Public Switched Telephone Networks)

·        Value Added Network(Van)

·        Integrated Services Digital Network(Isdn)

Pan(Personal Area Network)-Ye Ek Chota Sa Network Hai Jiska Use Home Ya Office Purpose Ke Liye Kiya Jata Hai .Iski Range Bhut He Kam Hai Only 10 Miters

Examples-Bluetooth,Tv Remotes Etc

Can-(Campus Area Network)-Iska Use Geographical Area Me Kiya Jata Hai For Example Universities,Collages Campus Etc.

Jesa Ki Aap Kisi Collage Me Dekhte Ho Ki Alag Alag Block Hote Hai B.Tech ,Bcom,It Etc To Wanha Is Network Ka Use Kiya Jata Hai

Interconnectig Devices-

Ye 7 Trah Ke Hote Hai

·        Repeaters

·        Hub

·        Bridge

·        Routers

·        Gateways

·        Switch

·        Modulation/Modem

Computer Network Layers-

·        Presentation Layer

·        Session Layer

·        Transport

·        Network

·        Data Link

·        Physical

Network Topologies-Ye Computer Network Ke Different   Element(Links,Nodes) Etc Ki Arrangement Hoti Hai.

Ye Do Trah Ki Hoti Hai Physical And Logical Topology

Sabse Pehle Ham Bat Karte Hai

·        Physical Topology Ki-

(Isme Server Location And Cable Installastion Ata Hai)

·        Logical Topology-Isme Is Bat Ka Pta Chalta Ha Ki Kis Trah Se Network Me Data Flow(Transmit) Ho Raha Hai

Types Of Logical Topology-

1)    Bus

2)    Star

3)    Ring

4)    Tree

5)     Mesh

6)    Hybrid

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Team Gajabwap Web In Hindi

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