IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => IGCSE/ GCSE => Miscellaneous => Topic started by: godfather93 on May 04, 2009, 10:00:17 am
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can someone please help me with the theory course. i am in the dark and i don't know what to study for the exam. please help! :'( :'(
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can someone please help me with the theory course. i am in the dark and i don't know what to study for the exam. please help! :'( :'(
You need to study everything included in the sylabus i know this is not new but i have some good tips for u
1)Review some past papers (in other words solve :)) There are many repeated questions and they usually come every year like the question about ROM and RAM.
2) Review ur textbook and understand every single word.
3) Study the advantages and disadvantages of internet,laptop,network,Storage devices cuz these questions are always asked.
Hope u benefit from my tips ;D
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thank you very much for ur reply. however, what about the chapter on syste analysis and effects of using it. do you have some site or activebook which i can use to revise for it. :D
Thanks
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Unfortunately i dont know any sites for system analysis
but study these points by heart...by heart
1)how to collect data of a current system (4 ways)
2)Types f implamentation and disadv.and advan. of each type.
3) Why do u have to evaluate the new system?
4)Types of data-normal,abnormal and extreme (These are the types used for testing..u must be able to describe each one)
5) Know everything about feasibility study.
6) Difference between technical and user documentation
7)What is included in the feasibility report.
That's all....if u know these points i can gurantee that u will do gd in this section
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Also do
:the ways in which IT is used,and
:the effects of using IT(one of the examiners favourites)
have a clear concept of the systems and analysis section
as IG girl juz mentioned abv..and also computer networks!
hope u know logo well,cuz it comes for sure and the basics:
hardwares/softwares
input/output
components of a computer(webcam,microphone,CPU,monitor etc..)
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also remember revising the EXPERT SYSTEM, and the SENSORS part (the processing and all)
the ones i said above always come, in the same exam or separately but they do come with no less than 5 marks each....and as junky demon and IG girl previously said
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hi what r da four ways of collecting data of a current system ???
i dont think i learnt it in school.....
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hi what r da four ways of collecting data of a current system ???
i dont think i learnt it in school.....
1)Collecting data and reports
2)Questionnaires
3)Interviews
4)Observation
It's very important..know them
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yea...and usually he asks for an advantage of each one of them (after explaining of course)
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thankx alot :)
how about normal,abnormal and extreme? what do v really have to know about it?? nd can u briefly explain to me the feasibily study thing? cos i hv know idea what to learn from it....
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expert system is pretty hard
any sites
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can anyone please please please help me on normal,abnormal and extreme thing??? and also feasibility study....
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for example u got data in a range of 0-60
normal test will be: within the range
Abnormal: outside the range
extreme: at 0 or at 60
u use them in explaining but they are not that common in exams....cuz the examiner doesnt usually ask about the system analysis in ONE WHOLE Q, but actually i guess it happened once
either way....those 3 tests happen in testing the new system before implementation.....and they test the validation routines to know if the new system is wrokin properly or not, the data in the abnormal should be rejected and the normal and extreme are accepted by the system.
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can anyone please please please help me on normal,abnormal and extreme thing??? and also feasibility study....
FEASIBILITY STUDY-for eg. a company does all its accounting work manually and wants to gt it computerised..the analysis and the study of building up the software and to check if getting it computerised is possible or not is the feasibility study(hope ure gtn it)its in very simple words dat ive put it in..nw try checking the actual definition in ur textbook.
NORMAL DATA-a data wich is withn the givn range for eg.the range is supposingly 1-9..if a no. is givn to be 3* thn it fits in the range hence it is a normal data..
ABNORMAL DATA-one wich is totally out of range (continuing the abv eg.)if the no. is 13...
EXTREME DATA-the no.s at the extreme of the range here..1 and 9.
study well ;)
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thanks a lot you guys. you've been of extreme help :D :D :D
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glad to hear that :D
GD LUCK!!
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heyy thank u so much for all those things :)
its a big help
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u should also know the difference between (validity) and (verification), u will alwaaayyysss get a question concerning these 2 and the questions are usually are atleast 10 marks in total,
u also need to know how to design certain screens like a screen at a supermarket or banker, which is usually easy, and know how to "play" with a robot/turtle. :)
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and there is always that question related to excel...where its easy at the beginning then u need to know few stuff as the type of data:: 1.Alphanumeric/text
2.numeric
3.Boolean/logical
4.Date
thats an important question too :D
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Guys www.teach-ict.com is an amazing site you can find everything, There were things I didnt understand until I read from there.
And an advice to do as much past papers as you can in addition to checking your answers from the mark scheme which is useful.
Everything is on www.freeexampapers.com for people who dont know
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i just search for wt i need??
i thought they will have the syllabus and explain the topics or something.......anywayzzz, Thanks, it has been useful :)
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They explain the topics dude. Go to GCSE and "All topics"
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oohhh.......Thanks :D
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Good you figured it out!
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thanks sweetsh,
the site is very very very good. ;D
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expert system is pretty hard
any sites
Well they only ask 4 questions related to expert system
Q1) how to create an expert system
A) a) User interviewed for requirement
b) Data collected from experts
c) Knowledge base is designed
d) Rule base designed
e) Inference engine designed
f) i/p screen and o.p format designed
g) Tested for sys. done by sample i/p
Q2) eg. of other expert systems
A) 1) Mineral extraction
2) Patient diagnosis , etc.
Q3) why models are better than the real thing
A) 1) Cheaper
2) o/p may be dangerous to human
3) waste of materials
4) too large of time scale required
Q4) i/p , process and o/p of a particular system
A) depending on the system the i/p process and o/p fall into place :D
hope it helps :)
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yes it is of gud help,short n sweet to the point.Thanks dude..
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i guess "Amber" aint a dude...LOL
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hehe , ya im nt a dude .. im a dudette :P
but its fine :D ;D
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:D hahaha
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lolz :P..sry there..:D
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no probs ... non taken :)