Computer Science - Computer Hardware - Discussion

Yes, the Mac address of Nic change, if you change the NIC card.

What is mean by PCI, NIC & IRQ? Explain about that, please.

Will the MAC address change if I change the NIC of a computer?

Every LAN card has its own Mac address is it right.

@Mohammad Rahim.

The southern bridge is next to the expansion buses or slots and storage.
The northern bridge is next to the RAM.

NORTHERN BRIDGE (MEMORY CONTROLLER HUB).
SOUTHERN BRIDGE (I/O CONTROLLER HUB).

I need information about southern bridge and north bridge.

1. BIOS does the booting process.

2. BIOS checks the input and output devices are operational or not when our computer get starts.

BIOS - Basic Input Output System.

What is motherboard BIOS?

PCI - these are slots in the motherboard for connecting external.

Cards like nic's, other graphic cards etc.

NIC (network interface card) - these are cards used to connect your.

Computer to a network. These nic card consist of MAC address.

And this address connect our computer to the network. MAC Address (media access control address) its a 48 bit hexa decimal address on which 24 bit is assigned by OUI (organisation unique identifier) and the other 24 bit is assigned by the manufacturer. NOTE that each computer have its own mac address it never changes.

IRQ-these are interrupts, that our processor do work on the basis.

Of these IRQ values. Each process have one irq number like.

IRQ1, IRQ2 etc. For example: if the processor is working on.

Some process and the bus introduces a function with IRQ.

Number IRQ5 the processor will stop the present function and it process that function after that it will automatically resume to the previous function.