HISTORY OF INTERNET WORKS CHARACTERISTICS
HISTORY OF INTERNET WORKS. THE INTERNET STARTED AS A U.S GOVERNMENT PROJECT IN THE YEAR the 1960S CALLED THE APARNET (AFTER THE ADVANCED RESEARCH PROJECTS AGENCY) WHICH SUPERVISE IN THE BEGINNING. THE APARNET REACHED UNIVERSITIES, RESEARCH laboratories, AND SOME MILITARY
INTERNET HAS THE FOLLOWING CHARACTERISTICS!
1.A COMPLEX NETWORK-WITH THE SIMPLIFIED DEFINITION AS A “NETWORK OF NETWORKS” THAT COMPRISES OF OVER 150 MILLION COMPUTERS.
2.DISORGANISED –THE INTERNET CAN BE CUMBERSOME AND CONFUSING, EVEN FOR EXPERIENCED USERS.
3.A DECENTRAlIZED SYSTEM-MILLIONS OF INDIVIDUALS NETWORkS AND OVER 140 MILLION INDIVIDUAL COMPUTERS CONNECTED THROUGHOUT THE WORLD
4.COMPOSE OF BILLIONS OF FILES-FILES PERTAINING TO THOUSANDS OF SUBJECTS, dISCIpLINES, AND PROFESSIONS ARE AVAILABLE IN A NUMEROUS OF FILE FORMATS.
5.WIDELY USED-MORE THAN 147 MILLION PEOPLE USE THE INTERNET, OVER 40 MILLION OF WHOM USE IT DAILY
6.INTERNATIONAL IN SCOPE-THIS GLOBAL NETWORK IS ACCESSED NY PEOPLE IN APPROXIMATELY 140 COUNTRIES; PEOPLE IN OVER 155 COUNTRIES USE INTERNET E-MAIL HISTORY OF INTERNET WORKS
HOW THE INTERNET WORKS?
- All the computers on the internet use a protocol called TCP/ IP.A protocol is set of rules that describe how computers communicate
- when you send a message across the internet to another use. TCP divides the data into units called packets and attaches to each packet. The information is necessary to reassemble the data and check the errors. IP then labels all the packets with a header containing the address of the destination and sends them on their way.
- once the packets reach their destination. The computer on the receiving end removes the IP header and use the data. That TCP attached to each packet to make use none of the packets have been lost or damaged. The packets then resemble into the original message.
- computers need specific software to use TCP/IP
- The hardware used to connect computers to the internet varies. If you access the internet from home, you most likely use a modem.
- Once all the packets of data arrive at the web server, the web server will look for the specific article, similar to how you’d look for a file in a cabinet drawer. Once the file has been located, the web server will chop up the response into data packets again, and send them back to your browser.
HISTORY OF INTERNET, HOW IT WORKS, CHARACTERISTICS OF INTERNET