IT Era (3)

Cards (30)

  • ARPA means Advanced Research Project Agency
  • First “ free net” created in Case Western Reserve University
  • Major Components of the Internet:
    1. Servers
    2. IP Address
    3. Browser
    4. Domain Name Sysytem (DNS)
    5. Internet Service Provider (ISP)
  • Servers : computer program that provides service.
  • Types of Servers:
    1. Application Server
    2. Web Server
    3. Proxy Server
    4. Mail Server
    5. File Server
    6. Policy Server
  • Application Server : application program.
  • Web Server – requested HTML pages or files.
  • Proxy Server – a software, intermediary between an endpoint device.
  • Mail Server – receives incoming e-mail from local users.
  • File Server – responsible for central storage.
  • Policy Server – security component of a policy – based network.
  • Browser – an application program that provides a way to look information.
  • IP Address (Internet Protocol) - a numerical label assigned to each device.
  • Domain Name System (DNS) – phonebook of internet.
  • Internet Service Provide (ISP) – an organization that provides services for accessing, using or participating in the internet.
  • 2 Types of ISP:
    1. NATIONAL ISP
    2. REGIONAL ISP
  • National ISP – provided internet access to a specific geographic area.
  • Regional ISP – business that provides internet access in cities and towns nationwide.
  • Internet - A global network of thousands of computer network.
  • Web – a collection of billions of webpages.
  • Social media – websites and apps that allow people to share comments, photos, and videos.
  • Email – the most common method of sending and receiving messages online.
  • Online gaming – games that allow people to play with and against each other over the Internet.
  • Software updates – operating system and application updates.
  • HTML - a coding language used to tell a browser how to place pictures.
  • HTML mean Hypertext Markup Language.
  • URL - Uniform Resource Locator is a web address used to connect to a remote resource on the world wide web.
  • Bit - single digit in the binary numbering system.
  • Byte - consists of eight bits.
  • Upload - to transfer data from your computer to another computer.