AQA COMP2 25th May 2012 Tweet

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1. Re: AQA COMP2 25th May 2012
The exam wasn't as bad as it could have been (compared to previous years), i just didn't know how to answer half the questions...
I really wanted TCP/IP to come up !!
2. Re: AQA COMP2 25th May 2012
For the Demorg one, I ended up with A, though not sure.

Thought of circuit like so:

A -------(not)-------\
\
(Nand gate)--------(or)--(not)-M
/
B

So either A had to be on (not notted cancels each other), or Both A and B had to be on (A and B on at Nand gate produces 0, then notted again). Therefore A+A.B, therefore simplified to A. Just hope I got that right.

Edit: Realised the problem with what I did was both routes have to not work, the A Nand B and the A not, or else or would still produce an output to be notted.
Last edited by CTom; 29-05-2012 at 11:40.
3. Re: AQA COMP2 25th May 2012
No sorry,

Demorgans law simplified it to A.(A.B)
Which simplifies to A.B
4. Re: AQA COMP2 25th May 2012
(Original post by CTom)
For the Demorg one, I ended up with A, though not sure.

Thought of circuit like so:

A -------(not)-------\
\
(Nand gate)--------(or)--(not)-M
/
B

So either A had to be on (not notted cancels each other), or Both A and B had to be on (A and B on at Nand gate produces 0, then notted again). Therefore A+A.B, therefore simplified to A. Just hope I got that right.
When you DeMorgan you change the sign, so it ended up being A.B.A

A.A = A
5. Re: AQA COMP2 25th May 2012
Ah well, hopefully made up with rest, thanks.
6. Re: AQA COMP2 25th May 2012
Holy crap I failed miserably in that paper!
Imperative high level language... what?
Router is software and hardware.. I just put down hardware..
The logic gate expression for the robot?! I got NOT U .(L+R) + U . (L+R) lol!!
Why were there many 3rd level program languages? Haven't a clue!
Why does the technician remotely access the database? Put down the predictable saves time answer and then had to make up another one.

Yeah, I definitely failed it. I'm cashing in the AS too, that will look lovely on my UCAS!

Oh well. :P
7. Re: AQA COMP2 25th May 2012
Hmm.. it was on the same difficulty as january's paper I think, but slightly better. but a lot of confusing stuff, especially some of the HTML >_<

But I'm happy, I reckon I got those couple of marks I missed out on in January to push me up a grade.

For the boolean equation I got (L XOR R).U
I don't think its right but it seemed to make sense when i transferred it to the logic gate diagram
8. Re: AQA COMP2 25th May 2012
(Original post by xDanny 117)
Holy crap I failed miserably in that paper!
Imperative high level language... what?
Router is software and hardware.. I just put down hardware..
The logic gate expression for the robot?! I got NOT U .(L+R) + U . (L+R) lol!!
Why were there many 3rd level program languages? Haven't a clue!
Why does the technician remotely access the database? Put down the predictable saves time answer and then had to make up another one.

Yeah, I definitely failed it. I'm cashing in the AS too, that will look lovely on my UCAS!

Oh well. :P
Isn't wireless router a hardware?
9. I put Hardware and Software.

This was posted from The Student Room's iPhone/iPad App
10. Re: AQA COMP2 25th May 2012
(Original post by JASApplications)
I put Hardware and Software.

This was posted from The Student Room's iPhone/iPad App
Hardware and Software has gotta be a trick question - surely it can only be hardware or only software? I mean you can have software that runs on hardware but that's not hardware and software
11. Re: AQA COMP2 25th May 2012

dammnnn, i got A.NotB for boolean.
12. Re: AQA COMP2 25th May 2012
Hardware and Software has gotta be a trick question - surely it can only be hardware or only software? I mean you can have software that runs on hardware but that's not hardware and software
Correct, it's just hardware - they put it there to trick people who think that you must put one in each column
13. Re: AQA COMP2 25th May 2012
Hardware and Software has gotta be a trick question - surely it can only be hardware or only software? I mean you can have software that runs on hardware but that's not hardware and software
It's really firmware, which is a combination of ROM with software and a hardware device. The correct answer was hardware and software.
14. Re: AQA COMP2 25th May 2012
It was Hardware and Software
15. Re: AQA COMP2 25th May 2012
Hardware and Software has gotta be a trick question - surely it can only be hardware or only software? I mean you can have software that runs on hardware but that's not hardware and software
I put down hardware because it has a processor and ram and everything. That question was ambiguous
16. Re: AQA COMP2 25th May 2012
(Original post by PreciseUrination)
It was Hardware and Software
Darrn, I scribbled it out as my instincts were telling me to tick Hardware...
I was just thinking of the router I have in my home, it's not really program instructions it's just a hardware device with signals right?
17. Surely a 'wireless router' on its own is hardware, if they'd said it had some filtering software on it or whatever it would be both? I mean a hard disk can have an operating system installed on it, does that make it hardware and software?

This was posted from The Student Room's iPhone/iPad App
18. Re: AQA COMP2 25th May 2012
In HTML, do you guys remember the questions?
I remember they asked for a block level tag, I put <p>
They asked why they put in the keywords line, too.
They also asked you to fill out the gaps in the style sheet link.
Inside rel=" " part I assume you could just write something like "here is the style sheet"?
inside href = I put C:/AQA/HTML/(filename.css) -- cant remember the name they gave you
At the start of the line, I put URL but I think it's LINK

You agree/disagree?!
19. Re: AQA COMP2 25th May 2012
I got the stylesheet one wrong (only got the last one) but looking at the source code on Facebook it should have been like this I think:

20. Re: AQA COMP2 25th May 2012
I put down software so I'm definitely screwed. Jk I put down both.

I'm sure "Hardware" and "Hardware & software" could both be argued.