Network Types and Performance

Рет қаралды 82,369

6 жыл бұрын

Introducing the terms PAN, LAN and WAN as well as two usage models. I also briefly talk about factors that affect the performance of networks.
Made primarily for OCR GCSE Computer Science (J277) Paper 1. If you are following another course, be sure to use the playlists on my channel.
If this video was useful, please like it and subscribe, it really helps! Also, if you use an ad blocker, whitelisting my channel is very much appreciated!
These videos will always be free but if you'd consider a donation I'd be extremely grateful - www.paypal.me/computerscience... or ko-fi.com/mrbrowncs.
Link to my TES shop where I upload my teacher resources (including the PowerPoints): www.tes.com/teaching-resource...
For any questions or enquiries, please email me using the address given on my channel page.

Пікірлер: 133

@lukeyyyyyy 6 жыл бұрын

Thanks mate. Your voice really helps me keep the info as opposed to the monotonous older people who bore me half to death. Thanks!

@fatimaakamrann 3 жыл бұрын

😂

@minaco2772 Жыл бұрын

🤣🤣

@teacupcakes2739 2 күн бұрын

fr i sleep on those videos

@mm-ic5vf 6 жыл бұрын

This channel doesn`t get the recognition it deserves.

@harrysemple9770 6 жыл бұрын

you're doing god's work here my dude

@jaylancaster8826 6 жыл бұрын

I've never even heard of a PAN before and I have my exam later. Thanks babes.

@RoninxDD 5 жыл бұрын

Why don't you just smack his ass?

@excaliber2845 Жыл бұрын

babes?

@kookieskosmos8160 5 жыл бұрын

anyone else powering through these for monday?

@jaysonfred8313 5 жыл бұрын

Me. Try it on 2x speed if it's taking too long

@sv_gaming5818 5 жыл бұрын

yep

@Ah-ec5ch 5 жыл бұрын

My guy

@toby3594 5 жыл бұрын

Yep :)

@khadz4life540 5 жыл бұрын

kookieskosmos me

@samuelcox9656 5 жыл бұрын

My computer science teacher is apparently one of the best, her along with your videos will hopefully really boost my grade. Thanks, you have a new sub.

@facs4119 7 ай бұрын

boost

@khadz4life540 5 жыл бұрын

Good luck guys for tomorrow

@che640 3 жыл бұрын

i love how u naturally assume my test is tmmr

@EwxnT 3 жыл бұрын

Haha yep

@khadz4life540 3 жыл бұрын

@@che640 this was like a year ago😂

@che640 3 жыл бұрын

@@khadz4life540 the test was horrible tho

@che640 3 жыл бұрын

@@khadz4life540 i thank u for replying and for that u earned urself an extra sub :)

@shaunakkaryekar9834 3 жыл бұрын

you are a life saver as you have the only cs series for as and a level, great work man!

@revisionnaire 3 жыл бұрын

there is craigndave. They are masters at their craft

@devnyorm944 3 жыл бұрын

Thank you. Good video, helped me understand networks more...

@seangriffin4691 6 жыл бұрын

thank you thus has been great for a crash course revision

@agsharansakthitharan 3 жыл бұрын

You are the god who is gonna save me from exams

@gl1tchmast3r43 6 жыл бұрын

I am in year 9 and I took my computer science GCSE early and this definitely helped thanks

@FaizanA-mh4pd 5 жыл бұрын

What'd you get?

@SSphinx. 11 ай бұрын

Feel old yet?

@gl1tchmast3r43 11 ай бұрын

@@SSphinx. welp im defo older now lmao. studying software engineering at university

@SSphinx. 11 ай бұрын

Good to hear ur still on the route

@alizashafi4524 6 жыл бұрын

Exam is tomorrow morning and i am so grateful that i have come across this !

@yumnairshad1164 5 жыл бұрын

very helpful content...thank you...

@zebroar4630 6 жыл бұрын

I just wanted to thank you for that B in Computer Science GCSE! Although it's late!

@ComputerScienceTutor 6 жыл бұрын

+Pl0x Ayuda not at all, I’m really pleased to hear that 😀

@anushiyagunarajah4832 3 жыл бұрын

I thought i was late to start studying but then these dudes are studying day before exam

@esthermay7066 3 жыл бұрын

what about it lmao

@chenrui9354 4 жыл бұрын

A question, sir: your playlist is titled 'OCR A level Computer Science' but the content more closely matches that of GCSE. Is there a separate GCSE playlist or are both included in this one?

@methulidulanima5344 5 ай бұрын

Thank you !

@taorobwatimwata5301 5 жыл бұрын

Thank you man

@mernistasphes 5 жыл бұрын

is bandwidth shared only across wireless networks? or is it shared for wired too?

@ThantarMyint Жыл бұрын

I am interest, thank for million

@jawadulkarim8877 3 жыл бұрын

Does this particular topic covers the new Cambridge 9618 syllabus?

@whazzupp100 6 жыл бұрын

Anyone else got their exam tomorrow?

@SKPlayZRaDiuM 6 жыл бұрын

@joeholmes2002 6 жыл бұрын

Yes, how are you feeling?

@whazzupp100 6 жыл бұрын

Joe Holmes I feel ok for most exam, but I'm nervous about computing.

@joeholmes2002 6 жыл бұрын

Haha, I suggest just trying to cram everything in. Going through these videos/ books. Maybe writing notes on the spec?

@dinomiteeatu9787 6 жыл бұрын

me im shook

@LexusXY 6 жыл бұрын

3 hours left till exam, learning it now. I should be fine.....

@mariacristiana7501 6 жыл бұрын

Mitchel Geddes, for sure there are going to be very low grade boundaries. There aren't many qualified computer science teachers (I didn't have one, so that's why I find this Chanel so useful), and we don't have the NEA anymore. On top of that this subject isn't easy, therefore the grades boundaries will be low, in my opinion. And to be honest, I hope they are low cause otherwise I'm not passing.

@epictetus8697 6 жыл бұрын

ye our teacher got injured in october and had substitutes ever since and our skl spent so much time on coursework im gambling on grade boundaries too

@cosmin1037 6 жыл бұрын

Nu ma asteptam sa gasesc pe cineva roman si aici=))))

@mariacristiana7501 6 жыл бұрын

Buna Cosmin=)))

@cosmin1037 6 жыл бұрын

Bafta azi :)

@neilgeorge6227 6 жыл бұрын

thats deep then, because from what i seen most people found the first paper easy, so the boundaries are likely to be high

@gameitwright7821 6 жыл бұрын

Hi, I know I comment a lot but my exam is 4 days away and I need some advice. My teacher makes the topic about Ethical and Environmental issues out to be like some huge topic that we need to spend loads of time revising for. However, I really struggle with networks. I haven't really revised either of these topics much yet (I've revised most other things) but I want to know do you thing I should spend loads of time on networks or focus more on the Ethical and Environmental issues? Personally, I'm leaning towards focusing on networks as the specimen paper seemed to have loads on it and little to nothing on the Ethical and Environmental side of things.

@ComputerScienceTutor 6 жыл бұрын

You have time to revise everything (4 days will seem like a luxury this time next week!), but personally I'd focus on networks, as you can't wing that as much. You have to understand the concepts, whereas the ethics/legal/environmental Qs are mostly application based, where you have to give opinions. They do tend to be longer mark questions though, and there are still some terms you need to know, but that won't take too long to cover

@gameitwright7821 6 жыл бұрын

Computer Science Tutor ok thank u

@MarcoLopez-pc3nw 3 жыл бұрын

Why would the bandwidth be greater with wireless? Shouldn't it be better with ethernet?

@fadybassem9804 3 жыл бұрын

same qs

@gcse3564 5 жыл бұрын

Exam tomorrow anyone?

@archiewillsjohnson4615 5 жыл бұрын

GC SE how much work you done?

@kianhorton5186 5 жыл бұрын

More like exam in an hour

@redleo-gm4mc 2 жыл бұрын

Joe

@yumnairshad1164 5 жыл бұрын

please upload for paper 3 and 4 ......

@gustas8201 6 жыл бұрын

I’m in year 9 but I just want my predicted grade to go up.

@flash_gamer6081 5 жыл бұрын

yep

@nonenone6388 6 жыл бұрын

how come this context does not matchup with the ocr cambridge revision books

@ComputerScienceTutor 6 жыл бұрын

What doesn't match? Please don't trust the textbooks too much!

@caitlins1258 6 жыл бұрын

Computer Science Tutor Hi, i would just like to say I really appreciate your work, my exam is tommorw and I was so stressed out by it. Fortunately I found your videos and they have simplified everything and now I have confidence for the exam... Thank you so so much ! YOU DESERVE MORE RECOGNITION !!!

@ComputerScienceTutor 6 жыл бұрын

That's so great to hear, thanks! Good luck :)

@caitlins1258 6 жыл бұрын

Computer Science Tutor Thank you :)

@lolcat 6 жыл бұрын

none none This is the Edexcel spec

@lelouchvibritannia4495 6 жыл бұрын

Can you make a video for NEA help?

@ComputerScienceTutor 6 жыл бұрын

+Lelouch Vi Britannia I’m not sure, what videos would be helpful?

@gameitwright7821 6 жыл бұрын

Lelouch Vi Britannia well u defo won't be needing that now whether u r in year 10 or 11!😂😂😂

@Peppy10003 5 жыл бұрын

is this loss?

@tanyajames5977 6 жыл бұрын

last minute revision gang where you at

@hmzach9403 2 жыл бұрын

good luck for tomorrow ya'll :((

@akikabanu5885 2 жыл бұрын

how did it go?

@lc4979q 3 жыл бұрын

I got a 9

@mariacristiana7501 6 жыл бұрын

Cosmin, chair nu a fost rău. Sper ca te-ai descurcat.

@alexireade3408 5 жыл бұрын

1 more hour bois, gl

@abdulrehman-fl7zp 3 жыл бұрын

watch this video at 0.75x playback speed thank me later

@SKPlayZRaDiuM 6 жыл бұрын

I am sorry but you are telling me one thing; the textbook is telling me another; the CGP revision guide is telling another. I feel like crying...

@ComputerScienceTutor 6 жыл бұрын

What's not matching up? Textbooks + CGP seem to include whatever they want so you have to be a bit careful

@JG-qo1os 5 жыл бұрын

Computer Science Tutor bus topology and star. Is that different from client to server and peer to peer

@eliabenson4201 5 жыл бұрын

Just thought I should point out some mistakes with this video... For performance the specification has this: Explain the effect of the following on the performance of the CPU: • clock speed • number of processor cores • cache size • cache type why are you talking about latency, bandwidth and error rate? Furthermore the specification requires knowledge of star and bus topologies, not Peer to peer.

@ComputerScienceTutor 5 жыл бұрын

I'm not quite sure what you mean about not mentioning hardware performance here, it's a bit of a non sequitur because that's a different topic and it's covered by another video. Same applies for the topologies, I have videos that cover those both. For peer-to-peer, I'm not sure what spec you're following but I try to make these videos as general as possible so it's possible your course is one of the few that doesn't cover the two network models

@eliabenson4201 5 жыл бұрын

@@ComputerScienceTutor I was pointing out the fact that at 4:47 you mention 3 aspects of performance, none of which are in the AQA gcse specification, despite the fact that they are in a playlist for AQA GCSE videos. I wasn't saying that you hadn't fully covered the topics of topolgies, rather that you had mentioned aspects of them not in the AQA specification

@parallax9938 5 жыл бұрын

@@eliabenson4201 you're talking about factors that affect the performance of the cpu, not performance of a network, and this is the ocr spec

@nazmamulla2041 5 жыл бұрын

@@eliabenson4201 these videos aren't 100% specific since there's so much overlap between exam boards. this vid is also on the ocr playlist and yes there are a few pieces that aren't on our spec (eg PANs) but its still a bit of extra useful knowledge and doesnt make much of a difference