Computer studies help HERE only !!

[~Mimi~]

Riyadh...

[cactus_360]

ok so which skool
manarat!!!!!!!!!

[susman]

hey guyz can any1 tell me the
DATA PROTECTION RULES...?
and what are the task done in each stages of SYSTEM ANALYSIS..

.

[~Mimi~]

Yes,cactus.Manarat...of course...lol

Anyways,
Data Protection Rule
- was introduced in 1984 and relates to the collection, storage, and distrbution of personal data about individuals.
- 3 ppl involved
1. Data User
2. data subject
3. Data authority or Data Protection controller ( He's the guy who imposes all the fines and puts u in trouble if you break the laws...)

Rules include:
1. Data held about individuals should be kept up to date and accurate
2. It must be kept for lawful, specified, and registered purposes only
3. It must not be kept for longer than is necessary for that purpose
4. Adequate security measure will be taken to protect data held against access by unauthorised users, illegal modification, or disclosure in inappropriate manners
5.The data subject shall have all rights to view data held about them, have it updated or corrected wherever appropriate.
6. It should be processed in manners compatible with the specified purposes only.
7. Hackers will be prosecuted. and fines imposed if laws are broken.

Certain authorities are exempted from these laws such as the police,military agencies,etc.

Umm....system analysis is sorta looong. Here's what you can do. Open ur Past papers. Look for a syst. analysis full-fledged question. Find the mark scheme ( use freeexampapers.com if u havent already got them). Learn off the answers by heart....5-6 for each to be on the safe side. The teachers put it in different ways in the notes sumtimes, although its all the same. U can go through all the syst. analysis questions in last 10 years if uve got time... That should be enuff. Plus, learn definitions for stuff like system life cycle, system analyst, etc. they've been cming up wid stupid ques. in the definition section l8ely....like define "mouse"...lol.
Anyway, hope that helps!

[~Mimi~]

sum1 -Repped me? im offended....I only had one...so unfair....

[sarsam]

IF anyone of the rule is disobeyed........ it will result in having to pay fines or even subjected to jail......

for the system analysis....refer to the site www.igcseict.info

[~Mimi~]

sarsam....do u got to manarat?

[sarsam]

when they asked to write difference between a compiler and an assembler ......
marksceme answer that assembler is one to one and compiler is one to many.........
what that mean?
another one.........
can anyone describe the sensors used in microproceeser controlled camera?
like  i wrote light and motion sensors....but how do i describe?
for the above, describe how the data collected by the sensors would be used by the camera's control program?ansewr should be in reference to these sensors..... what i will write in this...

[sarsam]

nope.....i go to B.I.S(bangladesh international school)

[~Mimi~]

Ms. Nidhi teaches you ?

[sarsam]

no........actually..
in our skool teachers randomly changes...... that made it worse......

[~Mimi~]

Compilers and Assemblers:

Compilers convert one high level language into many machine languages, which is why it's "portable" as in it converts   into the machine lang for the particular machine/computer
Assembler converts one assembly lang. into only one machine code, thus it's machine-prientated/machine-dependant.
The other difference is that assembler are written for a particular machine code and compilers for a particular HLL.Isn't it?

Lol...this is good revision...

About the camera:
 Basically, The camera receives input from sensors like infra-red sensors, light sensors ( measure light intensity), proximity sensors
( measure of distance from object photographed).
Control program uses this data to calculate apertures, shutter speeds, focal length for image.
It then adjusts the autofocus/zoom feature, autoflash feature according to the data recieved from the sensors. It may insert date/ time pic was taken or a name for the pic too.
That should be enuff. Remember going through mark schem for this one...but dunt remember all the other options.
Hope this helps!

[~Mimi~]

Oh...I didnt know there were any other Comp teachers at BISES. Ms. Nidhi dusnt teach IGs anymore? Krishnakumar left last yr though rite? R u giving the exam in this session?

[sarsam]

 :THANX...IT IS REALLY GREAT HELP...... 
Another one what is check sum?

are u referring  bis skul in riyadh? i actually study in dammam one, thus i dunno any teachers u mentioned.....
my teacher was musharraf sir......though he left also
and yes i m giving in this session......i m deadly scared......only two i m giving comp and other one is already over eng language

[~Mimi~]

wat time is it at ur end?!

Check Sum:
This is an extra digit which is transmitted along with a block of data being sent across a network. It is used to perform a transfer check at the other end. It is often a count of the number of bytes of data being sent. It is retotalled at the other end and compared with the figure received.

My teacher explained it wid the xample COMPUTER8.
But in the mark schemes , the xample given is Hash total (I think). I'm not so clear on what a hash total is either...don't ask...lol
It's supposed to be a "meaningless " total. Dunno how tht makes sense.