AQA COMP2 25th May 2012
Computer Science and ICT discussion, revision, exam and homework help.
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Re: AQA COMP2 25th May 2012For 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. -
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Re: AQA COMP2 25th May 2012When you DeMorgan you change the sign, so it ended up being A.B.A(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.
A.A = A
So the answer was A.B -
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Re: AQA COMP2 25th May 2012Holy 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 -
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Re: AQA COMP2 25th May 2012Hmm.. 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
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Re: AQA COMP2 25th May 2012Isn't wireless router a hardware?(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 -
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Re: AQA COMP2 25th May 2012Hardware 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(Original post by JASApplications)
I put Hardware and Software.
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Re: AQA COMP2 25th May 2012Correct, it's just hardware - they put it there to trick people who think that you must put one in each column(Original post by alphadawg)
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
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Re: AQA COMP2 25th May 2012It's really firmware, which is a combination of ROM with software and a hardware device. The correct answer was hardware and software.(Original post by alphadawg)
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 -
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Re: AQA COMP2 25th May 2012I put down hardware because it has a processor and ram and everything. That question was ambiguous(Original post by alphadawg)
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 -
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Re: AQA COMP2 25th May 2012Darrn, I scribbled it out as my instincts were telling me to tick Hardware...(Original post by PreciseUrination)
It was Hardware and Software
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?
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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?
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Re: AQA COMP2 25th May 2012In 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?!
