â€˘ Always a Central Computer that shares services and data with the other computer â€˘ Size unlimited based on the design of the Network
Network card or onboard network.
Plenum cable is run: • Between structural ceiling and suspended ceiling. • Under a raised floor.
â€˘ A Topology is a design or a layout
• • • •
Bus Star Hybrid Mesh
• • • •
All the computers are connected in a straight line This is not used today unless it already exists It is quite slow If one computer goes down the whole network goes down • The size of the Network is limited by the cable length, as the signal is lost after a certain distance
Terminator- stops signal from being lost
â€˘ All the computers are connected to a Central Hub
HUB- job to make the signal stronger, connects to server
16 port hub, hubs can connect to other hubs "daisy chaining", RJ-45 at the end.
Hub- switches are a fancier version of a hub that are more powerful and expensive
High quality, expensive cable used to connect the hubs.
Patch- lower quality cable not as expensive used to connect PCs to hubs.
More cables to connect from one computer to another, more reliable.
Most companies have Macs for artrelated jobs.
Unshielded twisted pair
up to 56 Kbps
Twisting also protects, if it is wrapped tighter it is more protected and more expensive.
Higher quality, more expensive, wrapped tighter.
shields all at once, less expensive.
Verizon FiOS Best cable of all, uses light instead of electricity, can use light because of glass, so the light would spread as if it where hitting a prism, core not metal. Laid under the ocean, has to be glass because salt would corrode metal in copper wires.
Glass, not metal, runs light
By Matt O'Gorman at 2:21 pm, Dec 20, 2010
Optical Fiber > Category 5 or 6
Up to 30 port hub.
Routers connect two different LAN's Routers can read IP addresses. IP addresses are different on everything. 220.127.116.11 is different than 18.104.22.168, but 21 is the same because it is on the same network. Different primary numbers usually means its on a different network. MAC address is older than IP Address. Running out of numbers, going to create IP 6, has more numbers than IP 4.
No longer important, Internet took its job.
or AT&T Giant Modem
Tells where the data needs to go.
Everything connects to it.
Media Access Control-
22.214.171.124 (IP Address.)