Lesson 3 : The Internet and the World Wide Web Flashcards
-System connecting computers/ resources
Network
- connects network devices over a
relatively short distance. - A networked office building, school, or home usually contains a single LAN.
Local Area Network (LAN)
- a spans a large physical distance. The Internet is the largest ____ spanning the Earth.
- a geographically-dispersed collection of LANs
Wide Area Network (WAN)
a LAN based on WiFi wireless network
technology.
Wireless Local Area Network
- a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city.
- typically owned an operated by a single entity such as a government body or large corporation.
Metropolitan Area Network (MAN)
- a network spanning multiple LANs but smaller than a MAN, such as on a university or local business campus.
Campus Area Network (CAN)
- connects servers to data storage devices through a technology like Fiber Channel.
Storage Area Network
- links high-performance computers with high-speed connections in a cluster configuration.
- Also known as Cluster Area Network.
System Area Network
When did start an experimental Computer Network?
January 2 1969
Hedeveloped the field of packet switching networks while conducting research at the historic RAND organization.
Paul Baran
- The father of the Internet
- Co-designer of the TCP/IP networking protocol. The First named as ARPANET
- Later renamed as INTERNET TCP/IP (Transmission Control Protocol/Internet Protocol)
Vinton Cerf
How to Connect to the Internet?
IP Address: Unique identifier for devices.
Packets: Small data chunks transmitted online.
Router: Directs packets to their destination.
what is the difference between Dial-up
& Cable Modems?
dial-up is slow, while cable modems are fast and always connected
- Provides Internet access and telecommunications equipment.
- Requires user ID, password, and may have a monthly fee.
Internet Service Provider (ISP)
- Files interconnected via hypertext
- Web pages make up a web site
- Home Page
-Links or hyperlinks - Web servers
- Most important service provided by Internet.
- An internet-based hypermedia
World Wide Web
WWW develop by?
Tim Berners-Lee at CERN in 1989.
Father of the World Wide Web and inventor of HTML.
TIm Berners-Lee:
is a software system that is designed to search for information on the World Wide Web.
Search Engine
The search results are generally presented in a line of results often referred to as ___________________
search engine results pages (SERPs).
- Software that fetches and displays web documents (e.g., Chrome, Firefox).
The Web Browser
Standard address for web resources.
- Uniform Resource Locator (URL)
The URL is made up of four components:
- A Scheme
- A Host
- A Path
- A Query String
Protocol used (e.g., HTTP, FTP).
Scheme
Domain name or IP address.
Host
