[Music] hello everyone welcome to my channel so for today's video it's going to be our first topic for current trends one which is current trends in web technology so we defined what is web technology so web technology is one of the important subject if you are into developing any software product okay so the first thing you need to know are the basic concepts so in this subject we are going to discuss topics that are useful in creating a software okay to develop a software we need to know we need to know um some programming concepts okay so we will be dealing with the basic concepts of different programming languages later on but for now let's start the introduction part of web technologies which is the basic concept about the internet because the internet is linked with web technologies okay so we all know about the internet we are living in the world in which everyone uses the internet but i think we need to refresh our memory about the history of internet so today we're going to discuss first the history of the internet then its basic services and the different search engines [Music] with all of the available information online i have picked two description about internet so the first one is internet is a network okay the internet is a global network of billions of computers and other electronic devices with the internet it's possible to access almost any information communicate with anyone else in the world and do much more okay another one it is a network of computers so internet is a network of computers which links many different types of computers available around the globe the concept of internet started in the late 1960s when the art connect or the advanced research project agency network was created the us department of defense had recently created the advanced research projects agency also known as arfa to keep its technology a step ahead of the soviets and a computer enthusiast named joseph league leader helped convince arpa to fund research into a computer network connecting scientists and engineers throughout the country the advanced research project agency or arpa an arm of the u.s defense department funded the development of the advanced research project agency network or arpanet in the late 1960s so its initial purpose was to link computers at pentagon-funded research institutions over telephone lines the u.s defense department linked its network to four universities in the country namely university of california los angeles university of california santa barbara stanford university and the university of utah [Music] so basically these are interconnecting computers so initially the research organization and the university use it to share and exchange information only within the organization [Music] so between 1969 to early 1970s dozens of new computers from around the country joined the network okay but by the middle of 70s arpanet wasn't the only network in town okay so there are similar networks already popping up around the world and some had even more computers on them email was invented back in 1971. this is the primary way to communicate around the world ray tomlinson is credited with inventing email in 1972 like many other internet inventors tomlinson worked for both berenick and neumann as an arpanet contractor he picked the at sign symbol from the computer keyboard to denote sending messages from one computer to another so then for anyone using internet standards it was simply a matter of nominating a name of the user then the app sign and the name of the computer there are a lot of problems occurred until the late 70s but engineers of those times were quick to to click on um thinking how to solve such problems okay so fast forward to 1989 the us government lifted restrictions and allowed the use of internet for commercial purposes all over the world it was also during this time in 1980s when the computers are far more inexpensive that even a common computer user can can buy the computer okay so since then the internet has grown rapidly to become the largest network so compared from 1989 up to now the internet interconnects more than 30 000 networks or allowing more than 10 million computers and more than 50 million computer users and more than 150 countries around the world communicating with each other so the internet continues to grow at a rapid pace day by day yes it is growing rapidly okay so i hope you understand the history of internet thank you