The Internet is a global system of interconnected computer networks, consisting of millions of private and public, academic, business, and government networks of local to global scope that are linked by copper wires, fiber-optic cables, wireless connections, and other technologies. The Internet appears to its users as a single worldwide network accessible to the general public. The protocol that makes it possible to use the millions of networks composing the Internet as if they were one network is a special type of packet switching known as IP or The Internet Protocol.
A computer that connects to the Internet can access information from a vast number of servers and other computers. An Internet connection also allows the computer to send information through the network; that information may be saved and ultimately accessed by a variety of servers and other computers. Much of the information widely accessible through use of the Internet consists of the interlinked hypertext documents and other resources of the World Wide Web (WWW). Web users typically send and receive information using a web browser. Other software for interacting with computer networks includes specialized programs for electronic mail, online chat, file transfer and file sharing.
Information is moved around the Internet by packet switching using the standardized Internet Protocol Suite (TCP/IP)which defines how packets are moving in any platform especially the transport layer. The Internet Protocol Suite consists of several layers of protocols. The lowest layer (the link layer) deals with protocols that transmit data over specific technologies, such as Ethernet or Wi-Fi. The highest layer (the application layer) supports specific applications,such as e-mail and file transfer. In between are the Internet layer, which provides for transmitting packets over any conceivable technology, and the transport layer, which provides for various services such as reliable delivery of packets or real-time streaming of packets. atlast internet accessible to the general public.
is a web browser
and Internet suite
developed by the Opera Software
company. Opera handles common Internet-related tasks such as displaying web sites, sending and receiving e-mail
messages, managing contacts, IRC online chatting
, downloading files via BitTorrent
, and reading web feeds
. Opera is offered free of charge for personal computers
and mobile phones
, but for other devices it must be paid for. Features of Opera include high performance, tabbed browsing
, page zooming
, mouse gestures
, and an integrated download manager
. Its security features include built-in phishing
protection, strong encryption when browsing secure web sites, and the ability to delete private data such as cookies
and browsing history by clicking a button. Opera runs on a variety of personal computer operating systems
, including Microsoft Windows
, Mac OS X
, and Solaris
. Although evaluations of Opera have been largely positive, Opera has had limited success on personal computers. It is currently the fourth most widely used web browser for personal computers, behind Internet Explorer
, Mozilla Firefox
, and Safari
. Opera has a stronger market share, however, on mobile devices such as mobile phones
, and personal digital assistants
Webcams are small cameras, (usually, though not always, video cameras) whose images can be accessed using the World Wide Web, instant messaging, or a PC video conferencing application. The term webcam is also used to describe the low-resolution digital video cameras designed for such purposes, but which can also be used to record in a non-real-time fashion.
File:Internet map 1024.jpg
Sat, 30 Apr 2016 03:07:30 -0700
Comcast, the Internet provider everyone loves to hate, is gearing up to offer one-gigabit-per-second Internet service in five U.S. cities this year. The first five cities to see the blazing speed are Nashville, Atlanta, Chicago, Detroit, and Miami. In ...
Sat, 30 Apr 2016 12:41:15 -0700
Warren Buffett recognizes how important the internet has become not just for business, but for society. That said, the Oracle of Omaha and Berkshire Hathaway are still trying to figure out how to harness the rapid growth of online commerce, something ...
Sat, 30 Apr 2016 10:03:45 -0700
Almost every aspect of human activity has a software application, or App, that focuses on it. Now an App for Artificial Intelligence (AI) looms as the next important and competitive area on the radar screen of such tech titans as Facebook (FB ...
Fri, 29 Apr 2016 20:00:00 -0700
Indeed, Wikipedia has become the first stop for many in the internet era to learn more about a book of interest and cross-reference to interesting connections between its characters, authors and plot devices and similar works. Beyond Wikipedia, a ...
Milwaukee Journal Sentinel
Sat, 30 Apr 2016 11:56:15 -0700
Regardless of how the 2020 predictions turn out, the point is clear: The "Internet of Things" is here to stay, it's getting bigger by the second and the size of the market will be measured in the trillions of dollars within a few years — if it's not ...
Los Angeles Times
Los Angeles Times
Sat, 30 Apr 2016 04:00:00 -0700
When Grace Hui moved to Los Angeles from China in 2014 and Googled the Chinese characters for "Los Angeles immigrant," the first result was Chineseinla.com. The Chino Hills-based website, a disorganized Yelp-meets-Craigslist hybrid, was a throwback, ...
Fri, 29 Apr 2016 22:03:45 -0700
Let's try an exercise. What are the questions you should ask yourself before posting an off-color joke on social media? Is it offensive? Racist? Does it take liberty with a man who suffered injury while in police custody and later died? Is it about a ...
Fri, 29 Apr 2016 14:00:00 -0700
Thousands of New Yorkers are being discreetly informed by NYPD detectives that their names have appeared on a list of “potential targets,” possibly compiled by terrorists, authorities confirmed to FoxNews.com. NYPD officials confirmed the existence of ...
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