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AS Computer Science AQA Paper 2 14th June 2016

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1. Has anyone got a copy of the paper available?]
2. (Original post by ShatnersBassoon)
You've been taught an oversimplified version of the law. "Swap All operators" only works if there are exactly two operators. I suppose there are two operators here but the two operators are "A" and "A+B", not "A" and "B" as most of your classmates must have naively assumed.

To test it out:
The original thing is (A+(A+B)''
My simplification is A'.(A+B)

If A = 0 and B = 0:
The original thing is (0+(0+0)'' = (0+0'' = (0+1)' = 1' = 0
My simplification is 0'.(0+0) = 1.0 = 0
Your simplification is 0'+(0.0) = 1+0 = 1

I could carry on but you get the gist. Your expression outputs different results to the original.
****, your right. Thanks for that. Possibly looking at a Max of 20 marks lost , Mid B High B I reckon.

Anyone know what the paper was out of? swear it was out of 72?
3. (Original post by OturuDansay)
There needs to be an END IF after MOV R2, #69
Do you lose a mark if you dont put HALT?
4. (Original post by Nemya_Nation)
****, your right. Thanks for that. Possibly looking at a Max of 20 marks lost , Mid B High B I reckon.

Anyone know what the paper was out of? swear it was out of 72?
The front of the paper said it was out of 75
The front of the paper said it was out of 75
Yeah thought so, last year it was 60. Probably just a thing that comes with the new spec.

70% = 53 Marks - A

I might actually have a chance. Good luck everyone and if anyone has Mechanics on Friday , it was good whilst it lasted ...
6. (Original post by Dullah)
Do you lose a mark if you dont put HALT?
No you wouldn't. HALT means when the program ends and it never stated to end the program in the question. You wouldn't gain nor lose if you put HALT
7. (Original post by Nemya_Nation)
Yeah thought so, last year it was 60. Probably just a thing that comes with the new spec.

70% = 53 Marks - A

I might actually have a chance. Good luck everyone and if anyone has Mechanics on Friday , it was good whilst it lasted ...
Do you think 70% will be an A?
I thought (comparing to other years) its around 75% or so
I dunno lol
but they should be lower anyway this year because it's a new spec and AQA need to prove that the same amount of people can get A's lol
8. (Original post by OturuDansay)
Do you think 70% will be an A?
I thought (comparing to other years) its around 75% or so
I dunno lol
but they should be lower anyway this year because it's a new spec and AQA need to prove that the same amount of people can get A's lol
Yeah I would say 70-80%, tbf it all comes down to the first paper, i ducked it up.
9. What did people get for the extra number of bits or bytes when increasing the colour depth?
10. (Original post by Nemya_Nation)
Yeah I would say 70-80%, tbf it all comes down to the first paper, i ducked it up.
Yh I did as well
11. (Original post by MrCoolVille)
What did people get for the extra number of bits or bytes when increasing the colour depth?
1 extra bit I put
12. (Original post by OturuDansay)
1 extra bit I put
I put 1 or 2. Can you remember how you did it?
13. (Original post by MrCoolVille)
I put 1 or 2. Can you remember how you did it?
I put 1 extra bit as well: 3 colours required 2 bits per pixel (2^2 > 3) and 5 requires 3 bits per pixel (2^3 > 5). But I didn't write down any working because it was only worth one mark, which was perhaps a mistake.
14. so many stuff the teacher hasnt covered...

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Updated: June 16, 2016
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