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# Aqa comp1 2016 watch

1. (Original post by Teee123)
Do you remember the grade boundaries from last year?

And lol i got an E last year, so anything i do this year will be better.
A 70, B 60, C 50, D 41, E 32. From what everyone is saying it sounds like this one was easier so I would expect them to be slightly higher than that this year. Hope it went well for you all!
2. (Original post by Teee123)
That's exactly what i wrote too, but wasnt the question just to tell the difference between the two?
"Analogue signals are electrical signals with values that vary in a continuous manner while digital signals are electrical signals with values that vary in a discrete manner" - Is what I put.
3. (Original post by Teee123)
That's exactly what i wrote too, but wasnt the question just to tell the difference between the two?
Yeah the question was 3 marks i think and was just to say the differences. For that FSM question did you say there was 5 possible states aswell?

Its looking like Section A for me is :

Section A : 29/31
Section B : 18/19
Section C : 9/14
Section D : 20/36

76 is probably a B
4. (Original post by ThisGuyThough)
"Analogue signals are electrical signals with values that vary in a continuous manner while digital signals are electrical signals with values that vary in a discrete manner" - Is what I put.
Does anyone remember what the last 2 marks of Section C were?
5. (Original post by Hassan Hassan)
Yeah the question was 3 marks i think and was just to say the differences. For that FSM question did you say there was 5 possible states aswell?

Its looking like Section A for me is :

Section A : 29/31
Section B : 18/19
Section C : 9/14
Section D : 20/36

76 is probably a B
Yeah i got 5 states. I probably just scraped a B so I'll have to do alot better in COMP2 and COMP3
6. What did you guys get for the storage of a 65536 colour, 16x16 resolution image?
Can someone tell me how they worked it?
7. (Original post by frosts16)
Thought it was a pretty good exam. Got all of those except 4 sample resolution, I think it was 12 but they mislead you by putting them in 4 bits.

Last question was hard but I eventually got there by using two for loops and 4 if statements that checked if a flip was possible, then if they were appended the coordinates to an array and printed the array.
Instead of using two for loops, you can do one loop from 1 to boardsize * 11
8. (Original post by crazyy)
What did you guys get for the storage of a 65536 colour, 16x16 resolution image?
Can someone tell me how they worked it?
log(65536) (base 2) = colour depth = 16

16 * 16 = screen resolution

colour depth * screen resolution = file size

please no one tell me I'm wrong, plz, plx, pls.

So that Comp 3 book thing, can I get in on that? I think I'm going to need to destroy that paper and hopefully I'll get a good night's sleep before it.
9. (Original post by ThisGuyThough)
log(65536) (base 2) = colour depth = 16

16 * 16 = screen resolution

colour depth * screen resolution = file size

please no one tell me I'm wrong, plz, plx, pls.

So that Comp 3 book thing, can I get in on that? I think I'm going to need to destroy that paper and hopefully I'll get a good night's sleep before it.
Then file size divided by 8 to get bytes.
10. Everyone got 278 for the 8 bit twos complement denary to binary right?
11. (Original post by crazyy)
What did you guys get for the storage of a 65536 colour, 16x16 resolution image?
Can someone tell me how they worked it?
2^16 = 65536
So->
16x16x16= 4096 bits
4096/8 = 512 bytes
12. (Original post by JamesGlackin)
Everyone got 278 for the 8 bit twos complement denary to binary right?

Isn't 278 impossible in two's complement. Since the left most bit is -128
13. (Original post by archiebaker)
Isn't 278 impossible in two's complement. Since the left most bit is -128
MSB is the sign bit, the second most is 64
14. (Original post by JamesGlackin)
Everyone got 278 for the 8 bit twos complement denary to binary right?
I got -76 or something similar - the most significant bit is -128, then add the placeholders where there is a 1
15. (Original post by TercioOfParma)
MSB is the sign bit, the second most is 64
Meaning 278 is impossible right? In 8 bit two's compliment anyway

EDIT: -76 as the guy above me got, is the same as what I got
16. (Original post by archiebaker)
Meaning 278 is impossible right? In 8 bit two's compliment anyway

EDIT: -76 as the guy above me got, is the same as what I got
Yes, it would be. I got -76 too.
17. How did everyone find setting the "H" and the "C" into the middle or outer of the board?
18. (Original post by UsmanM)
Then file size divided by 8 to get bytes.
Oh yeah - Luckily I didn't forget and actually did that in the actual exam!
19. I got that aswell
(Original post by JamesGlackin)
Everyone got 278 for the 8 bit twos complement denary to binary right?
20. ?????? -76 you mean?

For the Sound Calculation what did you guys get?

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