Network

WHAT IS A NETWORK

A GROUP OF COMPUTERS WHICH ARE CONNECTED TO EACH-OTHER FOR THE PURPOSE OF SHARING THEIR RESOURCES IS CALLED NETWORK.

A NETWORK CONSISTS OF TWO OR MORE COMPUTERS.THAT ARE LINKED IN ORDER TO SHARE RESOURCES (SUCH AS PRINTERS AND CDS), EXCHANGE FILES, OR ALLOW ELECTRONIC COMMUNICATIONS.

THE COMPUTERS ON A NETWORK MAY BE LINKED THROUGH CABLES, TELEPHONE LINES, RADIO WAVES, SATELLITES, OR INFRARED LIGHT BEAMS.

INVENTION OF NETWORK

COMPUTER NETWORKS WERE FIRST DEVELOPED IN THE LATE 1950s FOR MILITARY AND DEFENSE USA.

THEY WERE INITIALLY USED TO TRANSMIT DATA OVER TELEPHONE LINES AND HAD LIMITED COMMERCIAL AND SCIENTIFIC APPLICATIONS.

WITH THE ADVENT OF INTERNET TECHNOLOGIES, A COMPUTER NETWORK HAS BECOME INDISPENSABLE FOR BUSINESSES.

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Feature	Network	Internet
Definition	A collection of two or more connected computer systems that may share resources, such as an internet connection, an app, a printer, etc.	A global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices.
Size	Usually small, such as a local area network (LAN) or a wide area network (WAN).	Global, spanning the entire world.
Access	Usually requires a physical connection, such as a cable or a wireless signal.	Can be accessed from anywhere in the world with an internet connection.
Services	Can provide a variety of services, such as file sharing, printing, and email.	Provides a variety of services, such as the World Wide Web, email, and file sharing.

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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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