IGCSE Computer Science 2023-25 - (2b) Data Transmission - 2.2-2.3 Data Transmission and the USB

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  • เผยแพร่เมื่อ 23 ม.ค. 2025

ความคิดเห็น • 72

  • @Ashyx1n
    @Ashyx1n 2 ปีที่แล้ว +79

    My actual computer science teacher is literally useless, you are an absolute life saver. Words cannot explain how grateful I am for your existence.

    • @MATH605
      @MATH605 2 ปีที่แล้ว +3

      haha....mine too, my computer science teacher always leaves most of the important topics.

    • @awsaf4996
      @awsaf4996 2 ปีที่แล้ว +2

      same goes for me

    • @Aisha-gd6dq
      @Aisha-gd6dq 2 ปีที่แล้ว +2

      Same😭

    • @lapsaispro
      @lapsaispro 2 ปีที่แล้ว +2

      Same

    • @HealedMoonYT
      @HealedMoonYT ปีที่แล้ว +2

      Same bruh

  • @splat_oon
    @splat_oon หลายเดือนก่อน +5

    you're saving my mid terms right now

  • @alexanderig9449
    @alexanderig9449 5 หลายเดือนก่อน +9

    you are the computer science teacher we all needed

  • @shr07i
    @shr07i 2 ปีที่แล้ว +15

    thank you so much you're videos are truly helpful for 2023 igcse cs students

  • @tsgojas3181
    @tsgojas3181 ปีที่แล้ว +4

    My schools Computer science is so trash you are actually a life saver Thanku so much to help us out! :))))

  • @hazelamv3028
    @hazelamv3028 2 ปีที่แล้ว +10

    Hi I started studying while listening to your lectures and it helps me so much. I just need some guidance at chapter 8 I hope you will have lectures of it soon! Looking forward to it.

  • @NadaAhmed-nk5mv
    @NadaAhmed-nk5mv ปีที่แล้ว +5

    FINALLY FOUND THE VIDEO I'VE BEEN SEARCHING FOR! THANKS. SIR!!

  • @DeebajHasan
    @DeebajHasan หลายเดือนก่อน +1

    Well thanks that you came in handy i have my exam tomorrow thanx 😊

  • @fdplays6518
    @fdplays6518 6 หลายเดือนก่อน

    Ur the man, im really struggling as i just switched my field from medical to computer sciences, i hope it gets better

  • @HENDROGNWN
    @HENDROGNWN 2 ปีที่แล้ว +5

    There is very good examination for my university (UNSIA) Siber Asia University and my own leason in the class the name is "Data Communcation". Thankyou Mr Blumer's

  • @emanmohsin1035
    @emanmohsin1035 ปีที่แล้ว +6

    I'm litterly watching ur vids 1 day before my mid 😂😂
    Ur a hugeeee live saver thank you so much very very helpful

    • @ahmedatif1081
      @ahmedatif1081 หลายเดือนก่อน

      SAME!!!!🤣🤣🤣🤣

  • @MuhammadAbdullah-uq7wk
    @MuhammadAbdullah-uq7wk หลายเดือนก่อน

    U are the best man Mr Bulmer best teacher ive seen by far

  • @A2Square
    @A2Square 2 ปีที่แล้ว +4

    Sir, could you upload a video on the specimen paper 2023 it would help a lot

  • @abeehaahmed1536
    @abeehaahmed1536 ปีที่แล้ว +1

    Thank u these videos are a gift

  • @muhammadmubashirqureshi3907
    @muhammadmubashirqureshi3907 2 ปีที่แล้ว +3

    Salaam. Can we get the answers of the activity and exam style questions. It will be great help

  • @mahnoornasir3647
    @mahnoornasir3647 ปีที่แล้ว +1

    My teacher lecture is bla bla you are saving my life may God bless you

  • @wardahmansoor1113
    @wardahmansoor1113 7 หลายเดือนก่อน +1

    thank you mr bulmer for this video it really helps

  • @learningsupport
    @learningsupport 2 ปีที่แล้ว +3

    Great videos

  • @nityambajaj3417
    @nityambajaj3417 ปีที่แล้ว +1

    very nice video, keep up the good work

  • @damnitsali_
    @damnitsali_ 2 หลายเดือนก่อน

    Thank You !

  • @-stephenhawking-2404
    @-stephenhawking-2404 ปีที่แล้ว +1

    I was in need of serious help, as I was a boi student before (Done my full bio course btw). Thank you so much for the help Bulmer sir!

  • @ZeenatAli-o9x
    @ZeenatAli-o9x 5 หลายเดือนก่อน

    Sir! can you tell the reason about p2 that cambridge first upload paper on it now but they stopped it but why

  • @hadiyahammad7713
    @hadiyahammad7713 2 ปีที่แล้ว +1

    very helpful 😊

  • @ayeshazahra8970
    @ayeshazahra8970 2 ปีที่แล้ว +1

    Pls explain what is meant change in voltage on the data signal wires in USB cable

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 ปีที่แล้ว +2

      If the processor voltage cannot be guaranteed then the data line voltage also cannot be guaranteed. With this system of voltages even if the 5v line sags the data line voltage can still be guaranteed. This guaranteed voltage is necessary to keep clean transmission for full speed and high speed USB. The USB is designed to run at 3.3V…the 5V is to allow for a dip.

  • @rajeswaripokuri6196
    @rajeswaripokuri6196 ปีที่แล้ว +1

    can i get these slides

  • @saimafaisal3677
    @saimafaisal3677 2 ปีที่แล้ว

    Is there a topic that explains what a network is..i think one has to know about the network before data transmission!

  • @akashasohail3097
    @akashasohail3097 2 ปีที่แล้ว +5

    Asslm o Alaikum! Sir can you plz make the video on Chapter 3 Hardware solution activity 3.3 and 3.4. if it possible because this is only platform where we get solution of our problems.

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 ปีที่แล้ว +3

      Ok…give me a little time… I’m on it!

    • @akashasohail3097
      @akashasohail3097 2 ปีที่แล้ว +3

      @@mrbulmerslearningzone Thanks sir! May ALLAH bless you✨

    • @lapsaispro
      @lapsaispro 2 ปีที่แล้ว +2

      He should have more than 100k

    • @maria.2506
      @maria.2506 2 ปีที่แล้ว

      @@lapsaispro yes

  • @khadijahashraf2544
    @khadijahashraf2544 ปีที่แล้ว +1

    Can you do more of explaining rather than just reading the text out, please.. the text is available in the textbook as well.

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  ปีที่แล้ว

      There is plenty of explaining… my videos correspond with the textbook, but the text isn’t repeated. If you have specific questions please ask. I am here to help. Thank you for your feedback!

  • @zo775youtube6
    @zo775youtube6 2 ปีที่แล้ว +3

    You are a lifesaver thank you so much for last minute prep 😂😂is it possible to get notes?

    • @zo775youtube6
      @zo775youtube6 2 ปีที่แล้ว +2

      also where can i get the softcopy of this book?

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 ปีที่แล้ว +2

      I know that PDF versions exist online...

  • @kleptosuni20
    @kleptosuni20 2 ปีที่แล้ว

    Can I get soft copy of the second edition

  • @KilluaYT420
    @KilluaYT420 ปีที่แล้ว +1

    You should monitize your channel. Would be nice for you and would be our way to pay back the wonderful lectures you give us

  • @kareldossantos7444
    @kareldossantos7444 2 ปีที่แล้ว +4

    Where are the answers??

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 ปีที่แล้ว +2

      Answers to what Karel…what can I help you with?

    • @ashwikaagarwal5637
      @ashwikaagarwal5637 2 ปีที่แล้ว +3

      @@mrbulmerslearningzone 5:53 the answers to these questions?

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 ปีที่แล้ว +16

      @@ashwikaagarwal5637 thank you for the question... remember here we are only talking about Serial or Parallel Transmission types, so speed and distance are the key factors. In the first question the printer is close to the computer, but is speed of data transmission important? In the past Parallel would have been the obvious choice but now a USB Cable would be the correct solution...this would be the same for the weather station question. Again the third question is a little confusing; ideally parallel would be the best option, but again a USB Serial Cable wins with it being universally compatible. The final question relating to internal components can only be parallel due to distance and speed required... I do hope this helps

  • @mikzedits1595
    @mikzedits1595 ปีที่แล้ว

    Your absolutely live safer

  • @lapsaispro
    @lapsaispro 2 ปีที่แล้ว +1

    I don't under stand my teacher 😮‍💨

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 ปีที่แล้ว +1

      …I’m sorry to hear that…if you need me to answer any questions please let me know :-)

  • @syedzohaib203
    @syedzohaib203 7 หลายเดือนก่อน

    Op