In this presenattion, you are going to know more about the network and protocols and diferents parts in the hardware, i hope you will like it

1. Typical Things in a
Lan
MARIO LÓPEZ RUIZ 4A

2. What a Lan is
• They interconnect computer.
• Are usually close together.
• Private networks for search files.
• One example of a LAN is an Ethernet.
• Size of 10m, 100m or 1 km

3. Network Card
• Connects a computer with a computer network
• Piece of computer hardware
• Have nodes depending on the network
• Each node have RJ45 port
• Protocol for communication like TCP/IP
• Nodes are connected each other to communicate

4. Switch
 Active network elements
 RJ45 ports for connect nodes
 Are faster than hubs, with 100 Mhz
 A channel between two nodes for maximun speed

5. Router
 Small physical devices for connect networks
 Connect 2 or more networks
 Home networks are wireless
 An IP connect a PAN to a WAN
 Ability to filter traffic

6. Protocol TCP/IP
 For communicate computers we need a protocol, a set of rules, which have
5 functions
1. Locate any computer on the network
2. Understand messages and type of communication
3. Understand messages from all operating systems
4. Allow secure information Exchange
5. Finish the correction correctly

7. TCP/IP
 Basic element of the structure of the operating system
 Thanks to this protocol we can communicate diferent
operating systems and networks
 TCP provides reliable transfer of information transmitted
across the network
 IP transfers information to the destination computer.

8. IP ADRESS
 All computers must be identifiable so that they can be located quickly and
accurately.
 Each computer have an IP address
 Is made up of four groups of numbers between o to 250 by a full stop
 To find the IP address we can use a ping command followed by the URL
server
 The command of MS-DOS shows the values IP of the PC.