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Module 1 Lab Project -How the Internet Works

The Internet/Web

The Internet/Web

  • The internet is a public, globally connected network of computer networks.

  • The web is a graphical user interface to information stored on computers running web servers connected to the internet.

  • The web is a subset of the internet.

Internet

The Internet

  • The Internet is a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

The Web

  • The Web is the common name for the World Wide Web, a subset of the Internet consisting of the pages that can be accessed by a Web browser.

Web

Common Carriers

and Internet Service Providers (ISP)

  • Common carriers and ISPs are responsible for delivering the Internet to end-users by establishing and maintaining the necessary infrastructure and networks, including fiber optic cables, data centers, and routers.
  • They also ensure that the Internet is available to their customers 24/7 by providing technical support and network maintenance.

Common Carriers and ISP

Common Carriers

Common Carriers

  • Common Carriers can be a person or company that transports goods or passengers on regular routes at set rates.

Internet Service Providers

  • Internet Service Providers, or ISP, is a company that provides subscribers with access to the internet.

Internet Service Providers

Transmission Mediums & IP Addresses

  • Transmission mediums play a crucial role in determining the capacity, reliability, cost, distance, and interoperability of communication. Different transmission mediums have different characteristics, making it important to choose the right medium for a particular application.
  • IP addresses play a crucial role in routing, network management, location determination, and address allocation. They are essential for efficient and effective data transmission and communication.

Transmission Mediums & IP Addresses

Transition Mediums

Transition Mediums

  • A transmission medium is a system or substance that can mediate the propagation of signals for the purposes of telecommunication.
  • Some of these are copper wires, optical fibers, radio waves, satellites, and terrestrial microwaves

IP Addresses

  • IP addresses are a unique string of characters that identifies each computer using the Internet Protocol to communicate over a network.

IP Addresses

Hosting

  • store (a website or other data) on a server or other computer so that it can be accessed over the internet.
  • allows users to store content offsite, reducing local storage costs and the associated physical footprint.
  • four types of hosting offered to web site owners are shared, VPS, dedicated and cloud.

Hosting

Domains and Domain Name Services (DNS)

  • A Domain is a group of computers or websites that are organized by purpose, for example, to provide education or sell products
  • The domain name system (DNS) is a naming database in which internet domain names are located and translated into Internet Protocol (IP) addresses.
  • Some type of domain names include: .com, .org,

.gov, .net, .edu, etc.)

Domains & Domain Name Service

Protocols & Transmission Control Protocols

Protocols & Transmission Control Protocols

  • Transmission Control Protocol (TCP) is a communication protocol that provides reliable, ordered delivery of data between applications running on different devices.
  • A protocol is a set of rules and standards that govern the communication between devices on a network.
  • Some types of protocols are HTTP, FTP, IP, and TCP

Routers

Routers

  • A router is a network device that forwards data packets between computer networks.
  • A router works by receiving data packets and examining their IP addresses to determine the best path for forwarding the data.
  • Routers are the backbone of the Internet, connecting millions of devices and networks and enabling the exchange of data and information between them.

Clients and Servers

Clients & Servers

  • A client is a device or software application that requests services or resources from a server.
  • A server is a device or software application that provides services or resources to clients.
  • Clients initiate requests for services or resources, and servers respond by providing the information or service requested.
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