OCR Cambridge Nationals in
ICT
(Level 1/2)
R009
Exploring Computer Hardware
and Networks
Components
Computers are made up of different components that
work together.
Inside the average PC or Mac you will find:
•
•
•
•
•
•
•
•
RAM
When
ROM these are all working
a together,
hard diskthe computer
a DVDfunctions
player well.
a main board
various cables
a screen
a keyboard.
Mobile Technologies
Devices such
as theTablets
Kindle,
Laptops,
Netbooks,
and
Nintendo DS
and the
MP4
players
Smartphones
allow
user
to be
allow
for and
mobile
entertainment
portable
productive
at the
In
recent
years, computing has
to be readily
accessible.
same
time.
moved away from the large
desktop.
Games Consoles
Combine
a console
with
a homeconsole
networkallowing
and services
Most
UK homes
have
a games
for
such as Xbox
livemovement
widen the gaming,
gaming experience
to a
streaming
video,
music playback,
globaldisplays
scale. and online purchasing.
photo
Network Topology
Networks are found in the majority of businesses and
many homes have smaller networks now.
Wired networks can be set
up in different ways such as
Star and Hierarchical.
Virtual servers and thin client
computing have reduced the
cost and increased the speed
for modern networks.
Types of Network
Networks are found in homes, offices, schools, hospitals
and in many other places.
Wireless
networks
Selecting
the right are
kindnow
of
used
to attract
and
network
for theshoppers
organisation
theand
mobile
networks
then telephone
setting it up
takes
growspecialist
larger every
year.
skills.
Computer repair
Knowing
what to
look for hardware
is as important
knowing
Like
all things,
computer
fails atastimes.
Some
how tocan
fix the
problem.
things
be fixed
with a minimum of technical support
whilst others require an IT expert.
Computer or
connection problem?
Repair or
replace?
Network issues
When
a networkdiagnostics
componentand
fails or is wrongly configured
Completing
it can
lead to how
a loss
productivity
knowing
to of
perform
the and profits.
right tests will help the users
get up and running again
quickly.
Which cable? What server?
WEP or WPA?
Is the route clear?
Are the lights flashing?
You will learn…
IP
Common
Computer
LANs,
addresses,
What
Assistive
WANs,
itcomputer
means
hardware
technologies
MAC
IDs,
toaddresses
problems
CAT5,
be
components
an ICT
for
WiFi
and
and
technician
how
and
specified
network
tohow
and
fix
supporting
them
PING.
they
types.
needs.
quickly.
work.
users.
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