Part 1
Connection of computer in a small geographical area.
LAN
Data that has been processed and become very meaningful.
Information
Raw an unprocessed facts
Data
Shared for printing documents.
printers
Connect 2 or more computers to share files, program and resources?
Network
Powerful computers that provide services (e.g., file storage, web hosting) to clients
Server
The global network connecting millions of devices worldwide.
Internet
the basic physical and organizational structures and facilities
infrastructure
NIC stands for?
(Network Interface Card)
A network uses radio waves to connect devices.
Example of network devices
Switch - Router - Firewall - WAP - NIC - Hub
Enables devices to connect to a network.
NIC - (Network Interface Card)
Identify the basic ICT/ITInfrastructural requirement for most organizations.
*Data networking system *Network devices *Network protocols *Communication standards and applications *Servers & Desktop computers *Network resources
A much larger network connecting 2 or more Local Area Networks. pans larger distances, connecting multiple LANs across cities or countries.
WAN
Efficiently forwards data based on MAC addresses.
Switch
Wired LAN standard
Ethernet
Purpose of using network?
To share resources, files, programs etc
A network with computer resources in a geographic area larger that that a LAN but smaller than a WAN. Covers a city or a large campus.
MAN
Connects different networks, making forwarding decisions based on IP addresses.
Router
collection of independent networks through the use of a network gateway
Internetworking
These are networking devices that allow Wi-Fi devices to connect to a wired network.
Wireless Access Point (WAP)
a system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems
Ethernet
is a computer network security system (dedicated hardware-software unit. ) functions by selectively blocking or allowing data packets or restricts internet traffic in to, out of, or within a private network.
Firewall
General-purpose computers used by individuals. (contains a computer screen, mouse, keyboard and a system unit).
Workstations/ PC computers / Desktop computers
Protocols are rules and formats governing data transfer in a network.
Network Protocols