OCR AS Computing F451 - 2nd June 2014 Watch

chricky
Badges: 1
Rep:
?
#121
Report 4 years ago
#121
For last question I said; manages communication between devices and then tried to go in to detail and then manages shared peripherals eg prioritising print requests from different devices on the network.. Don't think they will be on mark scheme but that one stumped me.. Did the binary one definitely say two 8 bit bytes? I couldn't remember seeing 8 bit so went for a 9 bit byte and said the other represented the item itself eg tin of beans.. but nobody I talked to wrote that either.. rest of the paper wasn't too bad though!
0
reply
Ledhead27
Badges: 0
Rep:
?
#122
Report 4 years ago
#122
It just said two bytes, so I assumed tagging an extra 0 to the front (making the number of bits 10) would be sufficient but I'm beginning to doubt myself now

P.S will anyone be able to do a Mark Scheme for this exam in the near future as I'd be interested to see where I went wrong. Plus I can't remember all of the questions, unless someone can help me with that with regards to what all the questions were.
0
reply
CrystalSavage
Badges: 0
Rep:
?
#123
Report 4 years ago
#123
Why is everyone doing such strange things for the 312 in binary question??? I wrote it using two separate bytes, but all you lot seem to have done something with 10 bits. We were never taught that so am I missing something?
0
reply
Nick_888
Badges: 4
Rep:
?
#124
Report 4 years ago
#124
For the binary question I got 0000000100111000. I wasn't sure if I should have included those 7 0's but I did it anyway
2
reply
laarchie
Badges: 2
Rep:
?
#125
Report 4 years ago
#125
(Original post by TelephoneBox)
Bold: ??? what question?! Don't scare me! Do you mean the 312 one?

I thought the CIR question was worth more marks than I anticipated. I tried to get 6 points down but not sure if all of them were valid enough to be put in the mark scheme.
The 312 one yes
0
reply
KieRigby
Badges: 0
Rep:
?
#126
Report 4 years ago
#126
If you tuned into the F451 stream yesterday, I'm doing the post exam discussion if anyone feels the need to share their thoughts on today's exam! Starts at 5:30pm

1
reply
iamanerd991
Badges: 0
Rep:
?
#127
Report 4 years ago
#127
provides a platform for other applications to run and controls the hardware
0
reply
Hoosierette
Badges: 0
Rep:
?
#128
Report 4 years ago
#128
(Original post by Nick_888)
For the binary question I got 0000000100111000. I wasn't sure if I should have included those 7 0's but I did it anyway
I did that! Pretty sure you're meant to as otherwise it isn't 2 bytes!
0
reply
Hoosierette
Badges: 0
Rep:
?
#129
Report 4 years ago
#129
(Original post by chricky)
For last question I said; manages communication between devices and then tried to go in to detail and then manages shared peripherals eg prioritising print requests from different devices on the network.. Don't think they will be on mark scheme but that one stumped me.. Did the binary one definitely say two 8 bit bytes? I couldn't remember seeing 8 bit so went for a 9 bit byte and said the other represented the item itself eg tin of beans.. but nobody I talked to wrote that either.. rest of the paper wasn't too bad though!
But a byte is 8 bits...
0
reply
pat6089
Badges: 1
Rep:
?
#130
Report 4 years ago
#130
(Original post by Hoosierette)
I did that! Pretty sure you're meant to as otherwise it isn't 2 bytes!
Yeah, thats correct, i just went from the 9th bit -> (excluding the first 7 "0"'s)

Kicking myself for it
0
reply
pat6089
Badges: 1
Rep:
?
#131
Report 4 years ago
#131
(Original post by Ledhead27)
It just said two bytes, so I assumed tagging an extra 0 to the front (making the number of bits 10) would be sufficient but I'm beginning to doubt myself now

P.S will anyone be able to do a Mark Scheme for this exam in the near future as I'd be interested to see where I went wrong. Plus I can't remember all of the questions, unless someone can help me with that with regards to what all the questions were.
It should have been with 7 "0"'s then the 1, and onwards. I did similar to you. I think you we will have got 1 out of the 2 marks
0
reply
pat6089
Badges: 1
Rep:
?
#132
Report 4 years ago
#132
(Original post by chricky)
For last question I said; manages communication between devices and then tried to go in to detail and then manages shared peripherals eg prioritising print requests from different devices on the network.. Don't think they will be on mark scheme but that one stumped me.. Did the binary one definitely say two 8 bit bytes? I couldn't remember seeing 8 bit so went for a 9 bit byte and said the other represented the item itself eg tin of beans.. but nobody I talked to wrote that either.. rest of the paper wasn't too bad though!
I did the same as you! Incorrect, but we would have got 1 mark apperantly.
1
reply
Nick_888
Badges: 4
Rep:
?
#133
Report 4 years ago
#133
(Original post by Hoosierette)
I did that! Pretty sure you're meant to as otherwise it isn't 2 bytes!
It's nice to know that I'm not the only one who did that
0
reply
Ledhead27
Badges: 0
Rep:
?
#134
Report 4 years ago
#134
For the final question I ended up talking about time slicing and the use of flags and priorities so by the sounds of it I've well and truly messed that question up as well how did people describe the animation and interactive presentation questions?
0
reply
coder4
Badges: 2
Rep:
?
#135
Report 4 years ago
#135
(Original post by Nick_888)
For the binary question I got 0000000100111000. I wasn't sure if I should have included those 7 0's but I did it anyway
Thats what I did too but people at school were telling me I was wrong haha, just used BCD on each, added the extra to make it two bytes.
0
reply
QUANTAM
Badges: 11
Rep:
?
#136
Report 4 years ago
#136
The binary question asked how the data would be represented on the computer; the data that was represented on the database was stored as two bytes. Nothing was specified about the data being represented on the computer as two bytes...

If that makes sense? Anyways all is done now, let us move on to F452, I hope we all get the grades we deserve!
0
reply
laarchie
Badges: 2
Rep:
?
#137
Report 4 years ago
#137
(Original post by chricky)
For last question I said; manages communication between devices and then tried to go in to detail and then manages shared peripherals eg prioritising print requests from different devices on the network.. Don't think they will be on mark scheme but that one stumped me.. Did the binary one definitely say two 8 bit bytes? I couldn't remember seeing 8 bit so went for a 9 bit byte and said the other represented the item itself eg tin of beans.. but nobody I talked to wrote that either.. rest of the paper wasn't too bad though!
What was the question?
0
reply
Hoosierette
Badges: 0
Rep:
?
#138
Report 4 years ago
#138
(Original post by laarchie)
What was the question?
I think the last question was what a Network Operating system does.
0
reply
cdc3267
Badges: 0
Rep:
?
#139
Report 4 years ago
#139
In assuming Network OS was part of Chapter 2 R

It doesn't mention Network OS in the spec

r. describe the characteristics of different types of operating systems and their uses: batch, real-time, single-user, multi-user, multi-tasking and distributed systems;

Or could it be covered in Chapter 2 Q

q. describe the purpose of operating systems;


Cheers
0
reply
laarchie
Badges: 2
Rep:
?
#140
Report 4 years ago
#140
(Original post by Hoosierette)
I think the last question was what a Network Operating system does.
I said it allows files and resources to be shared (eg printers)
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of East Anglia
    All Departments Open 13:00-17:00. Find out more about our diverse range of subject areas and career progression in the Arts & Humanities, Social Sciences, Medicine & Health Sciences, and the Sciences. Postgraduate
    Wed, 30 Jan '19
  • Solent University
    Careers in maritime Undergraduate
    Sat, 2 Feb '19
  • Sheffield Hallam University
    City and Collegiate Campus Undergraduate
    Sun, 3 Feb '19

Brexit: Given the chance now, would you vote leave or remain?

Remain (529)
80.27%
Leave (130)
19.73%

Watched Threads

View All