2. WHAT IS A LAN? (Local Area Networks)
• Is a group of computers and associated devices that share a common
communications line or wireless link to a server.
3. WHAT IS A NETWORK?
• Is a group of two or more devices that can communicate.
• Comprised of a number of different computer systems connected by
physical and/or wireless connections.
4. WHAT IS A SWITCH?
• Active network elements.
• Faster than hubs
• Always know which nodes are connected to their ports
• can be connected to other switches in piles known as stacks.
5. WHAT ISTHE ROUTER´S PURPOSE?
• Join multiple networks together.
• connects two or more networks.
• operates at the network layer.
6. PROTOCOLTCP/IP
• Thanks to this protocol different operating systems and different
networks can communicate each other.
7. TCP and IP
• TCP: provides reliable transfer of information transmitted across the
network.
• IP: transfers information to the destination computer.
8. The IP Address
• Are connected to the Internet they can be located quickly and accurately.
• Is made up of four groups of numbers separated by full stops.
• can have a value of between 0 and 255
