It is
stored in a form of memory on the motherboard, and when run will initialize
and configure the hardware, load boot code for the operating system (usually
from a hard disk), then transfer control to the operating system. Older operating
systems would make use of the BIOS for I/O tasks, but current systems take full
control of the machine, only using the BIOS for initialization and booting.
Bridging
Combining two network segments (for example, one segment connected to a
wired Ethernet port and another connected wirelessly) as if they were one network.
An Ethernet bridge does not use routing, but rather, relies on broadcasting
to communicate between the two segments. So, this is a good way to share
broadcast services, such as a Samba server, between two LAN segments, or to
combine two LAN segments into one for easier administration and routing.
Bridging doesn??™t scale up well for larger LANs where the amount of broadcast
traffic can become unwieldy. (Compare to Routing.)
Broadcasting
In the context of a computer network, broadcasting means sending packets that
are designed to be received by all devices on a subnet.
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