Binary & ASCII Calculations (1 Viewer)

[reynaldo]

Will we need to know Binary & ASCII calculations for the exams? or were they only for prelim. ?

 

[Huy]

They were only for the preliminary course (Year 11).

I doubt you'll need to know it, although you should be able to do it

I don't believe there are ASCII calculations in the HSC course, or even in the Prelim course if I recall, namely:

* Dec to Bin
* Bin to Dec
* Dec to Hex
* Hex to Dec

There are obviously ASCII conversions that could take place, such as ASCII to Dec, but I doubt it.

I believe there are IEEE to Dec conversions in SDD.

But no, you will not be required to know it, only parity and error checking methods, such as Odd and Even parity, involved in ASCII characters and the transmission methods.

 

[reynaldo]

we did some ASCII in prelim. and i was puzzled why we haven't done it since..

as well as Parity, should we know how to do CRC and Checksum as well? The exam would be suspiciously easy if there was only Parity calculations

 

[Huy]

Originally posted by reynaldo
as well as Parity, should we know how to do CRC and Checksum as well? The exam would be suspiciously easy if there was only Parity calculations

You will be requred to know how CRC and checksums work in terms of error checking.

They won't ask you to calculate the checksum, or give the CRC, but you will be required to know of the methods of error checking and how they work.

I wouldn't worry too much about knowing how how "do" the calculations, but rather on how it works, what is involved in CRC and checksums (that is, how is CRC different to checksums) and what methods of error correction is available, and usually all you have to say is 'retransmission' if there is any error, but again, you will have to know all of the error checking procedures and methods in place, including CRC and checksums, parity and the rest.

this is only a small part of the exam (information systems and databases), and is met in transaction processing and communication systems, but it's not a big component, in the bigger scheme of things

 

[fatmuscle]

it's good to know some ASCII code

32 = space
65 = A
97 = a

me thinks...
CHECK IT UP YOURSELF!!!

 

[Delta32]

ofcourse, there won't be any big calculations in the exam... no calculators allowed. (yay).

They might through in a few speed/data conversions tho.

 

[reynaldo]

meh.. and is it also true that IPT gets scaled down alot too??

I was hoping good marks in IPT (my best subject) would be enough to compensate for maths (...) and get me into UTS.. but if IPT is scaled down.. i guess its TAFE & Centrelink for me

 

[Huy]

Originally posted by reynaldo
meh.. and is it also true that IPT gets scaled down alot too??

Please see:

Just a question...
http://www.boredofstudies.org/community/showthread.php?s=&threadid=11299

And
what raw mark do u need to get a band 5
http://www.boredofstudies.org/community/showthread.php?s=&threadid=12813

Originally posted by reynaldo
and is it also true that IPT gets scaled down alot too??

but if IPT is scaled down.. i guess its TAFE & Centrelink for me

It all depends on what your marks/standings (ranks) are.

Again, read the above two threads (especially the second).

 

[Agent Z]

ok...can someone tell me how to study from hte sylabus!! I dont get it!! How do I test myself from hte sylabus document!!

 

[Huy]

I don't really use the syllabus for revision/study, but if you haven't got it, download it from:

http://www.boardofstudies.nsw.edu.au/syllabus_hsc/pdf_doc/infoprotech_syl.pdf

Now, you can read all of the introductory stuff if you haven't already read it before, and it's pretty much the same as any other subject.

Skills outcomes, knowledge outcomes
Theory components (Students learn about...)
Practical components (Students learn to...)

Now, select a topic area (core, or option) and have a read through each dot point or focus area (they'll be tabulated).

If you can tick off each box, you've successfully learnt all that is required within the scope of the IPT syllabus.

Again, I don't regularly revise using the syllabus document, as I find it is only useful for subjects such as English, Physics/Chemistry and SOR.

For other subject areas like Maths, the syllabus covers the content and theory aspects, but it's just the same as any other textbook IMO. As for IPT, the syllabus talks about each section in each topic area which you would normally learn via reading the text itself.

The syllabus is fairly straightforward, so if you can answer the syllabus (take any example), then you'll be fine.

Otherwise, stick to what works best for you, and how you like to study for your subject(s).

(You can't really study from the syllabus itself, you use it as a guide in aiding you with study and revision)

 

[honky tonk]

Originally posted by Huy
I believe there are IEEE to Dec conversions in SDD.

*Gulp*

I'm supposed to be able to do that??

*Runs off to find out what IEEE stands for...*

 

[Huy]

Originally posted by honky tonk
I'm supposed to be able to do that??
*Runs off to find out what IEEE stands for...*

No, that's only for SDD.

Institute of Electrical & Electronics Engineers

Ever wondered what IEEE 1394 was? (Firewire)

It's just a standard

 

[fatmuscle]

definitely SDD topic.

If some people in SDD can't handle IEEE conversion, I doubt many IPT people will.

 

[Huy]

Originally posted by fatmuscle
If some people in SDD can't handle IEEE conversion, I doubt many IPT people will.

Let's get him boys/girls!

He's made an implicit post about IPT students
Only kidding.

 

[rx72c]

SDD students think there so smart. Well ive never seen what SDD is and ill bet ill get better marks than all of you in SDD.

 

[Winston]

IEEE conversions is about the easiest part of the course

just a little bit of thinking

sign | mantissa| exponent

it's all about doing around 10 of them and you'll love it...

 

[fatmuscle]

Originally posted by Huy
Let's get him boys/girls!

He's made an implicit post about IPT students
Only kidding.

of course you lot here on the forums doing IPT can EASILY manage to do SDD!!!

 

[Freedom_Dragon]

Umm... About SDD.
I would say that sdd theories are much more complex
compared to ipt theory. U are exspected to understand programing language such as prolog (logical programing) etc.
Be able to identify languages and give reason. I think ipt is more of a basic theory (generalisation).

 

[Leap]

Originally posted by Delta32
ofcourse, there won't be any big calculations in the exam... no calculators allowed. (yay).
They might through in a few speed/data conversions tho.

Could sombody give me an example of how to calculate questions like that?
Say we got a question asking how long it takes a 56k modem to download a 900k file, what are the steps involved in working that out?
(I don't do maths, so any question involving calculations - especially without a calculator - always freaks me out).

 

[Freedom_Dragon]

Hey.
I think they wont ask u to do any calculation like that.
I dont think u need to worry to much. (About calculations).
I think it depends on what rate u are downloading the 900k file.
Say if u were downloading at 4k/sec (for a 56k modem) then, u would have to divide 900k by 4. ur answer will then be in seconds so convert it to minutes. Im quite sure but then i could be wrong.