BIOS AND NETWORK MEDIA Flashcards
ROM chip found on
motherboards that allows you to
access and set up your computer
system at the most basic level.
Basic Input/Output System, the
BIOS
Function of BIOS
Post
Bios Drivers
Bootstrap loader
Bios or CMOS setup
Test the computer
hardware and make sure no
errors exist before loading the
operating system
Post
Low level drivers
that give the computer basic
operational control over your
computer’s hardware
Bios drivers
Locate the operating
system. If a capable operating system is
located, the BIOS will pass control to it.
Bootstrap loader
Configuration program
that allows you to configure hardware settings
including system settings such as computer
passwords, time, and date.
Bios or cmos setup
True or false; Adding additional memory to a BIOS chip, as an upgrade, can
only be done by physically removing it from the motherboard
and replacing it with a new, more advanced BIOS chip
True
True or false:The data on a BIOS chip can be updated if it is a flash BIOS.
Using specially designed software, the BIOS can be updated to
fix problems or add new features for the motherboard
True
the actual path over which an electrical signal travels as
it moves from one component to another. This information sheet describes
the common types of network media, including twisted-pair cable, coaxial
cable, fiber-optic cable, and wireless.
Network media
actual path over which an electrical signal travels as
it moves from one component to another.
Network media
type of
cabling that is used for
telephone communications
and most modern Ethernet
networks.
Twisted-pair cable
medium
that is composed of
pairs of wires UTP cable
is used in a variety of
networks. Each of the
eight individual copper
wires in UTP cable is
covered by an insulating
material.
UNSHIELDED TWISTED
PAIR (UTP) cable
It is a cable combines the
techniques of shielding,
cancellation, and wire twisting.
Each pair of wires is wrapped in a
metallic foil. The four pairs of
wires then are wrapped in an
overall metallic braid or foil.
SHIELDED TWISTED PAIR
It is a cable used in the transmission of video, communications, and
audio. However, these cables are also used in networks and what allow
a broadband cable Internet connection using a cable modem
Coaxial Cable
is the cable that runs in plenum spaces of a building. In building
construction, a plenum is a separate space provided for air circulation for
heating, ventilation, and air-conditioning (sometimes referred to as
HVAC), typically in the space between the structural ceiling and a drop-
down ceiling.
PLENUM CABLE
is cable that contains optical fibers (usually glass) coated in plastic
that are used to send data by pulses of light.
Fiber Optic Cable
allows only one mode (or
wavelength) of light to
propagate through the fiber.
It is capable of higher
bandwidth and greater
distances than multimode,
and it is often used for
campus backbones.
Single mode fiber cable
cable allows multiple
modes of light to propagate through the
fiber. It is often used for workgroup
applications and intrabuilding applications
such as risers. It uses light-emitting diodes
(LEDs) as a light-generating device. The
maximum cable length is 2 km (6561.7
feet).
Multi-fiber mode
radio frequencies (RF)
or infrared (IR) waves to
transmit data between
devices on a LAN. For
wireless LANs, a key
component is the wireless
hub, or access point, used
for signal distribution.
wireless communication
enable computers on a network to communicate. Each
computer plugs into the hub with an Ethernet cable, and
information sent from one computer to another passes
through the hub.
HUBS
can’t identify the source or intended destination of the
information it receives, so it sends the information to all of the
computers connected to it, including the one that sent it. A hub
can send or receive information, but it can’t do both at the
same time.
Hub
work the same way as hubs, but they can identify the
intended destination of the information that they receive, so
they send that information to only the computers that are
supposed to receive it.
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