Laboratory Concepts

Important ODIS Infrastructre:
  • Immigration Pro
  • Excel and Word
  • Shared Printer
  • Local area Network (LAN)
  • Internet
  • Security Software
    • How does Immigration Pro keep track of client data?
  • A Database System stores attributes and their values for each client.
  • A network filesystem stores the database.
  • Immigration pro on each computer connects to the shared database.
  • Software can select data into a spreadsheet.
  • Spreadsheets can be processed by Excel and Word
  • Topic: Software
    • How does the computer Print?
  • The printer appears as a device on the network.
  • The printer network device provides a print server.
  • Each computer connects to the printer.
  • Information to print is sent to the printer.
  • Reference: Windows Networking
    • How do the computers connect to eachother?
  • Each computer has a network interface card (NIC).
  • Each network interface connects to a central access point.
  • Connections may be with a wire or by wireless.
  • Each network interface has a unique address.
  • Topic: Networking
    • How do the computer access the internet?
  • Verizon FIOS provides a plug which connects to the internet (WAN).
  • A router connects the local network to Verizon FIOS.
  • The router provides a gateway to (and from) the internet.
  • Reference: ODIS Configuration
    • How are the computers secure?
  • Router acts as one gatekeeper
  • Firewall software on each computer acts as another.
  • Some information is blocked while others are allowed to pass.
  • Topic: Security
    • ©2007 David A. Barrett