Computer hardware and networking components

Computer Hardware
And Networking

Computer Hardware
The computer Hardware refers to the physical
components of computer. In deed it is a
machine which can perform various tasks
for us.
Hardware like Motherboard, Disk Drives,
Daughter Board (LAN card, sound card, VGI
card, etc ).

Computer HardwareComputer Hardware
ComponentsComponents

Mother board-
It is the
main printed
circuit board
(PCB),
It hold many
of the crucial
electronic
components
of the system.

Central Processing UnitCentral Processing Unit
The microprocessor
consists of three
sections:
1.Arithmetic Logic Unit
2.Registers
3.Control Unit

MEMORY SLOTMEMORY SLOT
There are 4 shortThere are 4 short
slots for SIMMslots for SIMM
memory.memory.
This board hasThis board has
two long slots fortwo long slots for
a new kind ofa new kind of
memory calledmemory called
DIMM DRAMDIMM DRAM..

RAM-Random Access Memory
It is a storage
device that
Temporary
stores data
while the
computer is
turned on.

HDD- Hard Disk Drive
The main
storage area
in the
computer
where the
operating
system is
stored along
with other
applications.

DVDDVD DrivesDrives
• DVD are like CD,DVD are like CD,
which have morewhich have more
storage than CDstorage than CD
 DVD drives are nowDVD drives are now
being installed inbeing installed in
new computersnew computers
instead of CD drives.instead of CD drives.
• Computer DVDComputer DVD
drives are able todrives are able to
read data stored onread data stored on
CD-ROMS andCD-ROMS and
DVDs and can playDVDs and can play
both video and audioboth video and audio
DVDs. CD-ROMDVDs. CD-ROM
drives cannot readdrives cannot read
DVDs.DVDs.

Networking Hardware
The devices which
are used to
connect two or
more computers
placed anywhere
can be termed as
Hardware for
Networking.

Networking devices
There are many networking devices-
1.LAN cards
2.Repeaters
3.HUB
4.Switches
5.Router
6.Networking Hardware.

1.LAN Card
A LAN (local area
network) card
connects a computer
to a network, whether
local of foreign. It is
connected to the
computer mother
board via serial port.
 Now a days these are by default
connected to the Mother Board.

2.Repeaters
• Connectivity devices that regenerate and
amplify an analog or digital signal so as to
transfer it to far places.

3.Hubs
Multiport repeater containing multiple ports
to interconnect multiple devices. They reduces the
strength of signal for every connected port.
Due to this they are not used now a days.

4.Switches
Subdivide a
network into
Smaller logical
pieces.
They can also
amplify the
signal.

5.Routers
Multiport connectivity
device.
There main
purpose is to
connect two or
more network
connection having
different Network
IDs.

6.Networking hardware
a. Cables and connectors
b. Networking tools.

a. Cables and connectors
Coaxial cables -
These cables are
used to carry
electrical signals
b/w two or more
computers.
UTP - Unshielded
Twisted Pair cables.
It is a set of three or four
pair of wires, with each
pair twisted around each
other to prevent
electromagnetic
interference.

Fiber optical cable
Fiber optic cable
carries light signal.
These are used to
carry data at distant
places, which cannot
be done by coaxial
cables or UTP. They
are more secured, less
loss in signal strength.

Connectors
RJ45 – This connector
is used to connect the
twisted pair cables
with the networking
devices.
BNC- it is commonly used
in base 10 Ethernet
network, it is used to end
the magnetic signal within
the cable which carries
info.

Networking Tools
Crimping tool - this tool is designed for the
connections of the UTP cables with the
connectors by cutting, stripping, deforming.
Crimping was developed as a high-quality,
low cost replacement for soldering process.

Krone tool – A
Punch Down tool
used by the
telecommunication
and network
technicians. It is
used for inserting
wires in insulation-
displacement
connector.

Summary -
Together with the combination of
hardware and networking the existing
form of networking is available, which
is fast, compact, easy to use and
secured.

Computer hardware and networking components

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