Computer Network

COMPUTER NETWORK

A COMPUTER NETWORK IS A GROUP OF COMPUTERS LINKED TO EACH OTHER THAT ENABLE COMPUTERS TO COMMUNICATE WITH EACH OTHER COMPUTERS AND SHARE THEIR RESOURCES, DATA AND APPLICATIONS.

COMPUTER NETWORK DIAGRAM

FIRST PUBLIC PACKET-SWSITCH

ARPANET, IN FULL ADVANCED RESEARCH PROJECTS AGENCY NETWORK, EXPERIMENTAL COMPUTER NETWORK THAT WAS THE FORERUNNER OF THE INTERNET. IN 1961THE U.S.

ADVANCED RESEARCH PROJECTS AGENCY NETWORK (ARPANET) WAS THE FIRST PUBLIC PACKET-SWITCHED COMPUTER NETWORK.IT WAS FIRST USED IN 1969.

TYPES OF NETWORK

PAN NETWORK

A PERSONAL AREA NETWORK IS A COMPUTER NETWORK FOR INTERCONNECTING ELECTRONIC DEVICES WITHIN AN INDIVIDUAL PERSON'S WORKSPACE.

A PAN PROVIDES DATA TRANSMISSION AMONG DEVICES SUCH AS COMPUTERS, SMARTPHONES, TABLETS AND PERSONAL DIGITAL ASSISTANTS.

PAN NETWORK RANGE IS 10 METER.

PAN NETWORK FIGURE

LAN NETWORK

A LOCAL AREA NETWORK IS A COLLECTION OF DEVICES CONNECTED TOGETHER IN ONE PHYSICAL LOCATION, SUCH AS AN OFFICE OR HOME BUILDING.

A LAN IS USED TO CONNECT THE COMPUTER AND OTHER NETWORK DEVICES SO THAT THE DEVICE CAN COMMUNICATE WITH EACH OTHER TO SHARE RESOURCES.

LAN NETWORK RANGE IS 1 TO 10 KILO METER.

MAN NETWORK

IT COVERS A LARGE GEOGRAPHICAL AREA BY INTERCONNECTING A DIFFERENT LAN TO FORM A LARGE NETWORK IT HAS A GREATER RANGE THAN A LAN.

WHEN DIFFERENT LOCAL AREA NETWORKS ARE CONNECTED AND INTERCONNECT AND COMMUNICATE WITH EACH OTHER, THEY BECOME A MAN NETWORK.

LAN NETWORK RANGE IS 2 TO 50 KILO METER.

MAN NETWORK FIGURE

WAN NETWORK

A WIDE AREA NETWORK IS A TELECOMMUNICATIONS NETWORK THAT EXTENDS OVER A LARGE GEOGRAPHIC AREA. WIDE AREA NETWORKS ARE OFTEN ESTABLISHED WITH LEASED TELECOMMUNICATION CIRCUITS.

COLLECTION OF DIFFERENT LAN AND DIFFERENT WAN NETWORK.

WAN NETWORK FIGURE

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Comments

TCP/IP MODEL

HISTORY OF TCP/IP MODEL THE TCP/IP MODEL WAS DEVELOPED BY VINT CERF AND BOB KAHN IN THE 1970S. THEY WERE BOTH WORKING AT THE DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) AT THE TIME. Vint Cerf And Bob Kahn CERF AND KAHN WERE TASKED WITH DEVELOPING A NEW NETWORK PROTOCOL THAT WOULD BE MORE RELIABLE AND EFFICIENT THAN THE EXISTING PROTOCOLS. THEY CAME UP WITH THE IDEA OF USING A LAYERED APPROACH, WHICH WOULD ALLOW EACH LAYER TO FOCUS ON A SPECIFIC TASK. THIS LED TO THE DEVELOPMENT OF THE TCP/IP MODEL, WHICH IS STILL THE BASIS FOR HOW DATA IS TRANSMITTED OVER THE INTERNET TODAY. CERF AND KAHN ARE OFTEN REFERRED TO AS THE "FATHERS OF THE INTERNET" FOR THEIR WORK ON THE TCP/IP MODEL. THEY WERE INDUCTED INTO THE NATIONAL INVENTORS HALL OF FAME IN 2004 FOR THEIR CONTRIBUTIONS TO THE DEVELOPMENT OF THE INTERNET. HERE ARE SOME OTHER NOTABLE PEOPLE WHO CONTRIBUTED TO THE DEVELOPMENT OF THE TCP/IP MODEL: JON POSTEL: POSTEL WAS THE FIRST CHAIRMAN OF THE INTERNET ENGINEERI...

About Me Information

HELLO FRIENDS, I HOPE YOU ALL ARE DOING WELL. I AM MAKING THIS BLOG FOR THE INFORMATION OF NETWORKING ABOUT. IN THIS BLOG WE WILL READ CCNA (200-301) AND ITS RELATED AND NETWORK RELATED INFORMATION. MY NAME IS ABDUL MANAN JAVED MANJ MY AGE IS 21 YEAR I AM STUDED ABOUT NETWORK TECHNOLOGY EMAIL ID : mananrajpoot449@gmail.com CONTACT NO : +923486777628 ADDRESS : ISLAMABAD,G7,KHADA MARKET My Website My Facebook Account My Facebook Page My Linkedin Profile _____________________________ CONTENT ABOUT HIS BLOGG 1. Computer Network 2. What Is Internet 3. Network Architecture 4. Osi Refrence Model 5. Operating System 6. Internet Protocol (Ip) 7. Internet Protocol Types 8. Port Number 9. Mac-Address 10. WHAT IS HUB 11. WHAT IS SWITCH 12. WHAT IS ROUTER 13. WHAT IS NETWORK 14. NETWORK CABLES 15. ROUTING 16. Data Transmission 17...

Internet Protocol (IP) Address

IP ADDRESS IT IS A UNIQUE ADDRESS THAT WE CAN ASSIGN TO DEVICE .SO THAT DEVICECAN COMMUNICATE WITH EACH OTHER. WE CANNAOT ASSIGN SAME IP ADDRESS IN ANY TWO DEVICES IN OUR NETWORK. IF WE WILL DO THIS THEN IT WILL BE CAUSE A CONFLICT ERROR. TWO VERSION OF IP ADDRESS: 1: IPV4 ; 2: IPV6 ; IPV4 32 BITS AND IPV6 128 BITS. AN IP ADDRESS, OR INTERNET PROTOCOL ADDRESS, IS A SERIES OF NUMBERS THAT IDENTIFIES ANY DEVICE ON A NETWORK. COMPUTERS USE IP ADDRESSES TO COMMUNICATE WITH EACH OTHER BOTH OVER THE INTERNET AS WELL AS ON OTHER NETWORKS. TO FIND THE IP ADDRESS CLASS WE NEED TO LOOK AT THE FIRST DIGIT OF THE IP ADDRESS. AND BY LOOKING AT THE FIRST DIGIT, WE CAN GUESS THE SUBNET MASK TO WHICH CLASS IT BELONGS. CLASS A IP ADDRESS SUBNET MASK 255.0.0.0 CLASS B IP ADDRESS SUBNET MASK 255.255.0.0 CLASS C IP ADDRESS SUBNET MASK 255.255.255.0 IANA TABLE IP RANGES IANA ( Internet Assigned Numbers Au...

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