Bus Networks - Devices share a single data path consisting of one cable- Affordable- Easy to useStar network- Contains a single hud where all devices communicate- All devices and computers connect to a central device forming a star- easy to install and nodes can be added or removed with no affect to other nodesRing Network- all connected devices form a loop that data passes through in one direction.- has more distance than BUS networks, but is much more difficult to install.
In today's lesson we will start with net work topologies, in other words the layout of computers and devices in a network
There are three types of networks. BUS networks, ring networks and star networks
Routers- This is a hardware device that routes data (hence the name) from a local area network (LAN) to another network connection. Switches- a device for making, breaking, or changing the connections in an electrical circuitHubs- a central device that connects multiple computers on a single network Modem - It allows one computer to connect another computer and transfer data over telephone lines. Brigdes - creates a single aggregate network from multiple communication networks or network segments.Network Interface Card- A network interface card (NIC) is a circuit board or card that is installed in a computer so that it can be connected to a network.
Next are the basic parts of a network
Multiplexers- (MUX) is a device allowing one or more low-speed analog or digital input signals to be selected, combined and transmitted at a higher speed on a single shared medium or within a single shared device.Wireless Access Point - specially configured devices on wireless local area networks (WLANs). Access points act as a central transmitter and receiver of wireless radio signals including WI-FI .
Here are some more basic parts to know
Centralized - Costly - Extremely powerful - Not easy to change- Also known as Terminal Network SystemPeer to Peer- No dedicated server- All computers are equal- Functions as both client and server
Networks are usually only setup as Peer to Peer, Centralized, or in a Client server. here is a description of each type.
Client Server- built around one or more dedicated servers-Administered from central location- More powerful than peer-to-peer-Supports thousands of clients\- Most common network
Next is network configuration
Fiber Optic Cable - A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. They're designed for long distance, high-performance data networking, and telecommunications.Microwave - a line-of-sight wireless communication technology that uses high frequency beams of radio waves to provide high speed wireless connections that can send and receive voice, video, and data information.Twisted Pair Cable - Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.Coaxial Cable - a transmission line for radio frequency signals. Satellite - provide global wide access to information by transmitting radio signals from orbit around the earth. Infrared - IR wireless is the use of wireless technology in devices or systems that convey data through infrared (IR) radiation.