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# AS Computing help Watch

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1. So there's these two questions that I don' understand :/

1) What is the greatest decimal integer you can represent with
a)4 b)8 c)16 bits?

2)How many different permutations of numbers can you represent with:
a)4 b)8 c)16 d)20 e) 24 bits?

It is urgent, any help would be appreciated, thanks in advance
2. (Original post by hamza772000)
So there's these two questions that I don' understand :/

1) What is the greatest decimal integer you can represent with
a)4 b)8 c)16 bits?

2)How many different permutations of numbers can you represent with:
a)4 b)8 c)16 d)20 e) 24 bits?

It is urgent, any help would be appreciated, thanks in advance
Not so sure on the first one.

I thought I'd bump the thread by saying a suggestion for no. 2 but you can't take my word for it
I believe you do each bit number to the power of 2 (because binary is base 2).
So for 4 bits, you'd have 2^4 permutations (16 variations)

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3. (Original post by Matrix123)
Not so sure on the first one.

I thought I'd bump the thread by saying a suggestion for no. 2 but you can't take my word for it
I believe you do each bit number to the power of 2 (because binary is base 2).
So for 4 bits, you'd have 2^4 permutations (16 variations)

Posted from TSR Mobile
Oh, thanks and np so erm for 8 bits it'd be 2^8?
4. (Original post by hamza772000)
So there's these two questions that I don' understand :/

1) What is the greatest decimal integer you can represent with
a)4 b)8 c)16 bits?

2)How many different permutations of numbers can you represent with:
a)4 b)8 c)16 d)20 e) 24 bits?

It is urgent, any help would be appreciated, thanks in advance
For 1) you can find the answer by the formula ((2^n)-1)

For 2) its just the formula 2^n
5. (Original post by hamza772000)
Oh, thanks and np so erm for 8 bits it'd be 2^8?

Best to wait for someone to confirm it though
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6. (Original post by IWMTom)
For 1) you can find the answer by the formula ((2^n)-1)

For 2) its just the formula 2^n
So for the first one for 4 bits it'd be ((2^4)-1)=(16-1)=15?

Oh, ok yh that confirms it

Thank you so much!

(Original post by Matrix123)

Best to wait for someone to confirm it though
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Yeah, the person above confirmed it

Ngl, this is simpler than I thought Thank you Matrix!
7. (Original post by hamza772000)
So for the first one for 4 bits it'd be ((2^4)-1)=(16-1)=15?

Oh, ok yh that confirms it

Thank you so much!

Yeah, the person above confirmed it

Ngl, this is simpler than I thought Thank you Matrix!
Cool

Haha glad to hear it
No worries!
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8. (Original post by Matrix123)
Cool

Haha glad to hear it
No worries!
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Right, back to work now! ttyl
9. (Original post by hamza772000)
Right, back to work now! ttyl
Haha good! and good luck with it
Yup
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10. (Original post by Matrix123)
Haha good! and good luck with it
Yup
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Oh, yeah Matrix, y'know that prefix sheet of yours helped me a lot, thanks!
11. (Original post by hamza772000)
Oh, yeah Matrix, y'know that prefix sheet of yours helped me a lot, thanks!
No worries! I haven't sent the Greek yet, have I? I can send that as well if you want

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12. (Original post by Matrix123)
No worries! I haven't sent the Greek yet, have I? I can send that as well if you want

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Yeah, I mean if you want, I can take a look, send it whenever ur free
13. (Original post by hamza772000)
Yeah, I mean if you want, I can take a look, send it whenever ur free
Of course!
Spoiler:
Show
Greek:

Base/Derived units:

Quantities and units:

You've probably done some of these before but I thought I'd send it all in one go - that's all the stuff from my summer hwk

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14. (Original post by Matrix123)
Of course!
Spoiler:
Show
Greek:

Base/Derived units:

Quantities and units:

You've probably done some of these before but I thought I'd send it all in one go - that's all the stuff from my summer hwk
Posted from TSR Mobile
Oh, goodness, Matrix! Didn't expect that much, really can't thank you enough but I can try, THANK YOU SO MUCH! I'll have a look once I'm doing Physics
15. (Original post by hamza772000)
Oh, goodness, Matrix! Didn't expect that much, really can't thank you enough but I can try, THANK YOU SO MUCH! I'll have a look once I'm doing Physics
Haha
No worries! Well it's only fair that I give you the stuff I've been given - we're doing the same AS anyways Okey dokey
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16. (Original post by Matrix123)
Haha
No worries! Well it's only fair that I give you the stuff I've been given - we're doing the same AS anyways Okey dokey
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Yh, we sure are You don't have to though
17. (Original post by hamza772000)
Yh, we sure are You don't have to though

True, but it's better to spread the resources round

Gonna sleep now, goodnight!
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18. (Original post by Matrix123)

True, but it's better to spread the resources round

Gonna sleep now, goodnight!
Posted from TSR Mobile
Yep, true

Goodnight!

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