C2: Understanding of ICT Systems in everyday life

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15 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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C2: Understanding of ICT Systems in everyday life

The content in this section is assessed through the terminal examination.


(a)

Knowledge of ICT components

Candidates should have an
understanding of the basic components
of a typical microcomputer system f
or
home or
s
chool use. This should
include:

• Size and type of memory (ROM,
RAM and


Cache);

• Concept of a Wind
ows operating
system (basic
knowledge of the start
-
up
sequence, GUI);

• Common input, output and storage
devices, for

example, keyboard,

mouse,
joystick, tracker pad,
microphones,
digital camera, scanner, touch sensitive
s
creen, monitor, laser pri
nter, ink jet
printer, storage

capacity of different
types of disk drives, tape streamer and
optical storage devices, modem.

Candidates should be able t
o:

• Expand all acronyms;

• Identify, from a photograph or

diagram,
component parts of a

typical home PC;

• Distinguish between volatile

and non
-
volatile
memory and

explain the need for both;

• Explain what cache memory is

and how it may
be used;

• Describ
e the “boot
-
up”

sequence in a typical
home PC;

• Identify peripherals as Input,

Output, Storage or

Communication devices;

• Compare input and output

devices in terms of
costs,

quality, speed and suitability

for specific
applications;

• Compare storage devi
ces in

terms of capacity,
data

retrieval, costs and suitability

for specific
applications.

(b)


Information Systems

Candidates should have an
understanding of:

• Information and data;

• Data capture (form design, OCR,
OMR);

• Data checking: verification,
validation
(type,

range, presence, check digit,
length, lookup

table, spell check);

• Data structure: flat files, relational
databases;

• Data portability: csv, rtf, ASCII, jpeg,
mpeg,

pict, tiff, gif, data compression.



Candidates should be able to:

• Ex
pand all acronyms;

• Define the difference between

Information and
Data;

• Discuss features important in

Form Design, eg
use of tick
-

boxes, colour, font, position,


instructions, lines, letter
-
boxes


e t c;

• Id e n t ify a d v a n t a g e s,

d is a d v a n t a ge s a n d
a p p lic a
t io n s

fo r OMR a n d OCR;

• Exp la in t h e d iffe re n c e b e t we e n

v e rific a t io n a n d
v a lid a t io n;

• Id e n t ify mo s t s u it a b le

v a lid a t io n t e c h n iq u e s fo r
g iv e n

s it u a t io n s;

• Id e n t ify s u it a b le d a t a fie ld s

fro m a writ t e n re c o rd

s p e c ific a t io n;

• Id e n t ify c o mmo n file t y p e s, e g

jp e g, t xt, c s v;

• Un d e rs t a n d t h e n e e d fo r d a t a

c o mp re s s io n a n d
t o o ls n e e d e d

t o c o mp re s s/d e c o mp re s s d a t a;

• Dis c u s s t h e a d v a n t a g e s o f a

re la t io n a l d a t a b a s e
c o mp a re d

t o fla t
-
file s in t e rms o f d a t a


re d u n d a n c y, d a t a in t e g rit y a n d

d a t a s e c u rit y.



(c )


Di g i t a
l c o mmu n i c a t i o n s y s t e ms

Ca n d id a t e s s h o u ld h a v e a n
u n d e rs t a n d in g o f:

• Da t a Ne t wo rks (LAN, WAN);

• In t e rn e t, Wo rld Wid e We b, In t ra n e t,
ISP,

b a n d wid t h, HTML, p ro t o c o l, we b
b ro ws e r,

s e a rc h e n g in e, URL;

• Ne t wo rk s e c u rit y: p a s s wo rd s, le v e ls
o f a c c e s s,

e n c ry p t i
o n, b a c ku p;

• Te le c o n fe re n c in g, e le c t ro n ic ma il,
fa c s imile

t ra n s mis s io n, ISDN, ro u t e r,
d ig it a l ima g e

t e c h n o lo g y.


Ca n d id a t e s s h o u ld b e a b le t o:

• Exp a n d a ll a c ro n y ms;

• Id e n t ify ma in d iffe re n c e s

b e t we e n LAN a n d
WAN;

• Dis t in g u is h b e t we e n In t e rn e t,

Wo rld Wi
d e We b
a n d In t ra n e t;


Identify advantages of using
an Intranet;

• Describe the services provided

y a typical ISP;

• Describe the features provided

by a typical web
browser;

• Compare, in relative terms, the

bandwidths
offered by different technologies, e
g PSTN,
ISDN, ADSL, optical
fibre;

• Describe the need for network

communication
protocols;

• Understand basic network

security systems, eg


passwords, access codes, encryption;

• Describe basic backup routines

or a typical PC
and LAN;

• Describe eq
uipment needed

and advantages of a


television/video

conferencing system;

compare
e
-
mail and fax in

terms of technology needed,


facilities offered and costs;

• Compare digital image systems with
c
onventional systems, eg conventional film


camera, d
igital TV versus analogue TV;

• Discuss the use of the mobile

telephone in
communication

and Internet access.



(d)


Applications

Candidates should have an
understanding of:

• Electronic Monetary Processing
(Electronic


Funds Transfer, Point of Sale, ATM
,
swipe and


smart cards);

• Billing (batch processing in electricity
or


telephone systems);

• Virtual reality in training and
entertainment;

• Computers in Control (understand the
terms:


sensor, data logging and feedback as
used in


greenhouse, traff
ic control systems,
domestic


control systems);

• On
-
line services (shopping, banking,


reservations, e
-
commerce).


Candidates should be able to:

• Expand all acronyms;

• Identify the advantages of EFT

for the customer
and vendor;

• Describe a typical PO
S system

as used in a
supermarket;

• Describe the operation of a

typical ATM system
in terms

o
f facilities offered, security

systems and
magnetic strip(e)

cards;


Distinguish between swipe and

smart cards;

• Describe the flow of data in a

batch processing

system

including data collection, data

input, data
validation,

transaction file, master file,

hard copy
output and updating

describe the differences


between a simulation and

virtual reality, creation
of

virtual worlds and interactivity

with the user;


Id
entify uses of virtual reality
in building design,
airlines,

medicine and gaming;

• Identify sensors needed and

control systems
used in

greenhouses, traffic control

and domestic
systems;

• Define the terms data logging,

understand the
concept of

analogu
e and digital data and

the need
for conversion;

• Describe the hardware and

software needed to
access on
-
line services;

• Describe the advantages

offered by typical on
-
line services for the vendor and customer.