Computer Network : Complete Guide for Beginners (2026)

Computer Network ante rendu leda antakante ekkuva computers, mobiles, printers, servers mariyu other devices ni wired or wireless connection dwara connect chesi, vatiki madhya data mariyu resources share chesukovadaniki use chese network.
Simple ga cheppalante, oka computer nunchi inko computer ki data pampinchali, files share cheyali, printer ni multiple computers tho use cheyali ante computer network avasaram avutundi.
For example, oka office lo 20 computers unnayi anukundam. Aa computers anni oka network ki connect ayi unte, avi files, printers mariyu other network resources ni share chesukovachu. Internet kuda networks tho create ayina huge interconnected system.

Computer Network is a collection of computers and devices connected through Ethernet cables or wireless technology to make communication and resource sharing easier. Explanation ga Rendu kante ekkuva computers oka danitho marokati communicate avvalanna leka resource share chesukovali anna manam computer network vadathamu.

Network	Full Form	Coverage	Example
PAN	Personal Area Network	Very small area	Bluetooth
LAN	Local Area Network	Home/Office/Building	Computer Lab
MAN	Metropolitan Area Network	City/Metro area	City-wide network
WAN	Wide Area Network	Countries/Continents	Internet

Types of Computer Networks

There are four main types of computer networks.These networks are classified based on their coverage area.

• 1.PAN

• 2.LAN

• 3.MAN

• 4.WAN

1.PAN:

PAN stands for Personal Area Network.

PAN anedi oka person chuttu unna small area lo personal devices ni connect cheyadaniki use chese network. Mobile phone, laptop, smartwatch, wireless headphones lanti devices ni connect cheyadaniki PAN examples chudavachu.

Usually PAN range chala limited ga untundi, commonly around 10 meters varaku Bluetooth lanti technologies work chestayi. Exact range technology mariyu environment batti change avvachu.

✓PAN stands for Personal Area Network.
✓This network is mainly used for personal devices such as mobile phones, laptops, and computers.
✓The range of a PAN is typically up to 10 meters.
✓example of pan is Personal Hotspot and Bluetooth

Explanation:👇👇👇

Manam mana mobile phone lo use chese personal hotspot and Bluetooth pan network kinda vastayi.Aa 10 meters distance dhatithe manaki connection anedhi disable avuthundi.so,Manam rojoo vaade network PAN (Personal Area Network) ki oka udaharanam.Melo chala mandi PAN ante enti ani confuse ayi untaru. Nijaniki PAN ante chala simple ga cheppali ante Personal Area Network ani pilustaru. Endukante idi chala chinna network kabatti, idi sumaruga 10 meters range lo work avuthundi. Anduke dinini PAN (Personal Area Network) ani pilustaru.

2.LAN

LAN stands for Local Area Network.

LAN anedi limited geographical area lo multiple computers and devices ni connect cheyadaniki use chestaru. Home, office, school, college, computer lab lanti places lo LAN networks common ga untayi.

LAN ki fixed ga 1 km–2 km range ani cheppadam correct kaadu. LAN coverage usually oka room, building, office, campus lanti limited area varaku untundi.

✓LAN full form is local area network
✓LAN is used to connect computers within a limited area such as a home, office, school, or laboratory.
✓example for lan is computer labs in colleges, offices.
✓Range of LAN is 1km-2km.

Explanation:👇👇👇

Manaki oka 100-300computers ki network kavali PAN range saripokapothe ekkuva computers ni connect cheyadaniki LAN network ni upayogistaru.e network tho anni systems ki network ivvochu .manam e LAN ni 1km nunchi 2km varaku vadukovochu.LAN ante enti ani simple ga cheppali ante, oka network ki chala computers connect ayi undatam. Oka network nundi chala computers ni speed ga connect cheyadaniki LAN ni upayogistaru. Schools, colleges, offices, computer labs lanti chotla ekkuvaga LAN network vadutaru. Anduke dinini LAN (Local Area Network) ani pilustaru.

3.MAN

✓MAN full form is metropolitan area network.
✓collection of LANs are called as MAN
✓range of MAN is 50km -150km.
✓A MAN connects multiple LANs across a city or metropolitan area.

Explanation:👇👇👇

Manam towns mariyu cities lo chusthe chala illalo Wi-Fi connection untundi.Idi multiple LAN networks ni connect chesi city level lo communication and connectivity ni andistundi.

4.WAN

✓WAN full form is wide area network
✓WAN covers very large geographical areas, including countries and continents. including countries and continents.
✓WAN is used in geographical areas.
✓The Internet is the best example of a WAN.

Explanation:👇👇👇

WAN (Wide Area Network) ante idi oka pedda network. Mana world mottham connect ayi untundi. Manam mobile network use chestunnam dhaniki vache network manam e place lo unna vastundi e country lo unna vastundi .adhi Ela possible ante manam WAN network a particular sim network vallu use cheyatam valana.sim network ante example jio, Airtel, Vodafone,etc…..?

Conclusion

Computer Network anedi computers and other devices madhya communication and resource sharing kosam chala important. Different requirements batti PAN, LAN, MAN mariyu WAN lanti network types ni use chestaru.

PAN personal devices madhya small area lo communication kosam use avutundi. LAN home, office, school or computer lab lanti limited areas lo devices ni connect chestundi. MAN city or metropolitan area level lo networks ni connect cheyadaniki use avutundi. WAN matram very large geographical areas, different cities or countries madhya networks ni connect cheyagaladu.

Ee network types madhya difference ni clear ga understand cheskunte, real-world networking concepts ni easy ga understand cheyadam start cheyochu.