OturuDansay
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I couldn't find a thread for the Paper 2, so I thought I'd make one.

How's everyone's revision going?
Feel free to share resources
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Christian Prior
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ok
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swingrx
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How did everyone find that paper?
I didn't like the Boolean algebra and the assembly language questions
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OturuDansay
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(Original post by swingrx)
How did everyone find that paper?
I didn't like the Boolean algebra and the assembly language questions
A lot easier than the programming paper lol and yeah the assembly language Q's were a bit tricky.
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Valantina.R
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(Original post by swingrx)
How did everyone find that paper?
I didn't like the Boolean algebra and the assembly language questions
Yeah I didn't like that one either what did you end up writing for it though?
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MrCoolVille
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What did you get for the Boolean algebra answer? I got A.B or A+B!
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swingrx
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(Original post by MrCoolVille)
What did you get for the Boolean algebra answer? I got A.B or A+B!
I got Not A and Not BBut apparently the right answer was Not A and B :/
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MrCoolVille
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I got Close Anyways how did you do the assembly code question?
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swingrx
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(Original post by MrCoolVille)
I got Close Anyways how did you do the assembly code question?
AND R3 R1, #1
BNQ endif1:
STR R2, #69
endif1
BEQ endif2
STR R2, #Y
endif2
HALT
I think thats what I wrote, I'm not write if it's right though...
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Djebar
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What did people get for the first assembly question? The 1 mark one. I got #128 because it asked for the last bit but everyone I talked to go #1 or #0.
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MrCoolVille
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(Original post by Djebar)
What did people get for the first assembly question? The 1 mark one. I got #128 because it asked for the last bit but everyone I talked to go #1 or #0.
I got #1 too.
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MrCoolVille
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What did people write for simp lying the two Boolean statements. The first one was not C but what was the second one?
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OturuDansay
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(Original post by Djebar)
What did people get for the first assembly question? The 1 mark one. I got #128 because it asked for the last bit but everyone I talked to go #1 or #0.
I wasn't sure, I put 0 tho
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Bradley99
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Haha I got B on the boolean algebra question
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ShatnersBassoon
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For the assembly question, I put "Machine code" for the 1 marker and my assembly code was something like:

AND R3, R1, #1
CMP R3, #1
BEQ odd:
BNE even:
odd STORE* R2, 79
even STORE* R2, 69
HALT

*Not its exact name - can't remember now what it was called.

I imagine most people did it the other way around ("CMP R3, #0; BEQ even:" etc.)

I got (not A).B for the Boolean logic.

For the pixel image I got 64 bytes (16*16*2/8), but said that the actual file would be larger because computers use 8-bit numbers for each pixel.

The networking stuff was terrible - what was the device you needed to name in the first part and why couldn't the student access the network?

I also had no clue as to the components of an SSD drive.
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Bradley99
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(Original post by MrCoolVille)
What did people write for simp lying the two Boolean statements. The first one was not C but what was the second one?
I got just C for the second one.
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Bradley99
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(Original post by ShatnersBassoon)
For the assembly question, I put "Machine code" for the 1 marker and my assembly code was something like:

AND R3, R1, #1
CMP R3, #1
BEQ odd:
BNE even:
odd STORE* R2, 79
even STORE* R2, 69
HALT

*Not its exact name - can't remember now what it was called.

I imagine most people did it the other way around ("CMP R3, #0; BEQ even:" etc.)

I got (not A).B for the Boolean logic.

For the pixel image I got 64 bytes (16*16*2/8), but said that the actual file would be larger because computers use 8-bit numbers for each pixel.

The networking stuff was terrible - what was the device you needed to name in the first part and why couldn't the student access the network?

I also had no clue as to the components of an SSD drive.
I got 64 bytes for the image
It was a networking card i think and by using SSID whitelisting.
And floating gate transistor / NAND flash memory chips.
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ShatnersBassoon
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For the three methods of improving processor speed:

Word length: more words means more data can be processed at once.
Clock speed: the faster the clock speed, the more instructions can be processed per second.
Bus width: a wider data bus means more data can be transmitted at once.

I'm pretty sure I got the three methods right but I'm not sure my explanations of their effects were sufficient enough to get the other 3 marks.

(-9)^2 was a natural number; sqrt(2) was irrational; -4 was an integer but not natural.
For the binary stuff I remember 39 (in hex), 57 (in decimal), the character "9" and 3.5625.

(Original post by Bradley99)
It was a networking card i think and by using SSID whitelisting.
And floating gate transistor / NAND flash memory chips.
I can say for a fact that our teachers have never mentioned NAND flash memory chips or floating gate transistors. Thanks for the answer tho - I'm blaming my teachers if I've done badly.
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swingrx
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(Original post by MrCoolVille)
What did people write for simp lying the two Boolean statements. The first one was not C but what was the second one?
I got C
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Bradley99
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(Original post by ShatnersBassoon)
For the three methods of improving processor speed:

Word length: more words means more data can be processed at once.
Clock speed: the faster the clock speed, the more instructions can be processed per second.
Bus width: a wider data bus means more data can be transmitted at once.

I'm pretty sure I got the three methods right but I'm not sure my explanations of their effects were sufficient enough to get the other 3 marks.

I can say for a fact that our teachers have never mentioned NAND flash memory chips or floating gate transistors. Thanks for the answer tho - I'm blaming my teachers if I've done badly.
Yeah for the 3 I put wider data bus, wider address bus, higher clock speed.

My teacher only went through SSD's today so I was lucky. The paper was okay, there were just some bad questions.
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