Networking
Why use a Network?
Quite simply explained we use networks for communication between
computers, sharing of data and peripherals. In the business world we use
networks for ease of administration and to cut costs.
Sharing data example imagine an office with 5 secretaries working on 5 different computers, one requires a file from another computer in a non networked office this file would have to be written to a portable media then loaded onto the computer. In a networked office the file could be accessed via the network from a shared folder.
Sharing peripherals example the same office with 5 secretaries working on 5 different computers, in order to print their work each computer would need to have a printer attached. In a networked office you could have one shared printer, cutting costs.
A common language or protocol (TCP/IP IPX/SPX, APPLE TALK) is a convention or standard that controls or enables the connection, communication, and data transfer between two computing endpoints.
Cabling BNC,Cat5, fibre optic
Hardware NIC(Network Interface Card), router, switch, hub, modem wireless access point.
Network Service (DNS, WINS, DHCP)
.
Sharing data example imagine an office with 5 secretaries working on 5 different computers, one requires a file from another computer in a non networked office this file would have to be written to a portable media then loaded onto the computer. In a networked office the file could be accessed via the network from a shared folder.
Sharing peripherals example the same office with 5 secretaries working on 5 different computers, in order to print their work each computer would need to have a printer attached. In a networked office you could have one shared printer, cutting costs.
What do you need?
A common language or protocol (TCP/IP IPX/SPX, APPLE TALK) is a convention or standard that controls or enables the connection, communication, and data transfer between two computing endpoints.A common language or protocol (TCP/IP IPX/SPX, APPLE TALK) is a convention or standard that controls or enables the connection, communication, and data transfer between two computing endpoints.
Cabling BNC,Cat5, fibre optic
Hardware NIC(Network Interface Card), router, switch, hub, modem wireless access point.
Network Service (DNS, WINS, DHCP)
.
Network Hardware
Network Interface Card
A network card, network adapter, network interface card or NIC is a
piece of computer hardware designed to allow computers to communicate
over a computer network. It has a MAC address.
Every network card has a
unique 48-bit serial number called a MAC address, which is written to
ROM carried on the card.
Every computer on a network must have a card
with a unique MAC address.
The IEEE is responsible for assigning MAC
addresses to the vendors of network interface cards. No two cards ever
manufactured should share the same address.
See next lecture 4 for more..
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