IGCSE Computer Science 2023-25 - (2d) Data Transmission - ENCRYPTION, SYMMETRIC and ASYMMETRIC

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  • Опубліковано 27 гру 2024

КОМЕНТАРІ • 52

  • @mazenzaheer4603
    @mazenzaheer4603 2 роки тому +24

    Sir, your lectures are amazing ✨. As a private candidate these are extremely helpful. Love from Pakistan ❤️❤️❤️

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 роки тому +10

      Mazen…it’s always a pleasure answering your questions

    • @mazenzaheer4603
      @mazenzaheer4603 2 роки тому +6

      @@mrbulmerslearningzone ❤️✨

    • @AbdulRehman-qm7el
      @AbdulRehman-qm7el Рік тому +2

      Me too just came to know about his lectures and truly they are very easily understandable and extremely helpful

    • @iiant2949
      @iiant2949 4 місяці тому

      ​@@AbdulRehman-qm7elExactly

  • @habiv1377
    @habiv1377 2 роки тому +7

    AMAZING SIR-------/ FROM GILGIT PAKISTAN

  • @lokawyaraju1479
    @lokawyaraju1479 13 днів тому +1

    Omg you are the best i have my mid term exam tomorrow.

  • @deadricxshoe
    @deadricxshoe Рік тому +4

    lets all just A*s in these CIES!! IA lesgoo

  • @omerkhan5396
    @omerkhan5396 2 роки тому +8

    tomorrow is my midterm and your lectures will save my grades. Love from PAKISTAN❤❤❤

  • @palestinianmapping1923
    @palestinianmapping1923 Рік тому +4

    You're actually a lifesaver, these videos are really helpful especially because I get bored from reading textbooks.

  • @money_time247
    @money_time247 8 місяців тому +3

    Your amazing I'm appearing from Pakistan for computer science your vedios help me alot.

  • @ureedahtehreem6941
    @ureedahtehreem6941 2 роки тому +5

    very informative. every student may understand it. (from Pakistan)

  • @siddoesstuffonyt2074
    @siddoesstuffonyt2074 9 місяців тому +2

    Got my exam tom need to complete most of the book thanks

  • @dlankesh
    @dlankesh 2 роки тому +12

    Hey , I am 47 years of age
    Still learning
    Following your lectures

  • @leventefaludi-orszagh211
    @leventefaludi-orszagh211 2 роки тому +2

    Massively appreciated!

  • @reallucivcam
    @reallucivcam 2 роки тому +4

    Sir you have made my computer 💻 science easy by these videos thank you 🙏 sooo much for the help you have done because of you I was able to get a A* for my previous exam Thank you 🙏 again

  • @balaraajsubaangi144
    @balaraajsubaangi144 2 роки тому +4

    Hey you have explained how to use the check digit using ISBN 13, may I know where you have explained how to use it with the Modulo 11 method?

  • @MATH605
    @MATH605 2 роки тому +2

    Sir could you please upload the answers to Exam-Style Questions of Chapter 1 and 2? Really need them....please help

  • @simplyflamez2138
    @simplyflamez2138 2 місяці тому +1

    One of the best teachers for computer science honestly helps a lot
    From Pakistan ❤❤

  • @OutplayerR
    @OutplayerR 10 місяців тому +3

    Most people are from pakistan like me, which is cool, also like your videos! they are helpful and informative! I just learned about Ciphertext from this! Thanks!

  • @BSK2501
    @BSK2501 2 роки тому +2

    Thanks alot - very helpful as private candidate

  • @s_afe
    @s_afe 2 роки тому +4

    I can't thank you enough for your hardwork

  • @cheaterryzefn1504
    @cheaterryzefn1504 Рік тому

    in isbn -13 step 5 its a little bit different in book, after adding the even and odd numbers we divide it by 10 and if the remainder is 0 then we use that value otherwise we subtract the remainder from 10 to find the check digit.

  • @minawthathike3513
    @minawthathike3513 2 роки тому +2

    this is the best explanation ever

  • @leerezking194
    @leerezking194 2 роки тому +2

    sir you are the best so far

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 роки тому +2

      ‘so far’??? I hope I can help you get an outstanding grade in Computer Science :-)

  • @AvaabAhmed69
    @AvaabAhmed69 9 місяців тому +1

    amazing teacher trust me love from pakistan
    i cant tell u enough ow good of a teacher u are

  • @aayanmalik3131
    @aayanmalik3131 11 місяців тому +1

    Is ISBN 13 still part of the syllabus?

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  11 місяців тому +2

      Yes, I believe so... 2.2 Methods of Error Detection - Describe how a check digit is used to detect errors in data entry and identify examples of when a check digit is used, including international standard book numbers (ISBN) and bar codes.

  • @Umar_Baloch_MVP
    @Umar_Baloch_MVP 15 днів тому

    I really enjoy your lectures. They are very clear and easy to understand. I especially like the way you explain complex topics.
    Love from Pakistan .

  • @MFH17
    @MFH17 Рік тому +1

    Legend I have never failed a computer science mock cause of this mandem

  • @moueezcow6365
    @moueezcow6365 2 роки тому +1

    Can you do chapter 6 automated and emerging technologies please

  • @iambatman232
    @iambatman232 2 роки тому +1

    Sir you are the best I was literally wasting my time trying to understand it all by myself these videos are a gem 💎 can't thank you enough

  • @tayyabjaved1185
    @tayyabjaved1185 2 місяці тому

    MODULO-11??

  • @ZeenatAli-o9x
    @ZeenatAli-o9x 4 місяці тому

    LOVE FROM PAKISTAN! LOVES YOUR AMAZING STEP BY STEP TEACHING

  • @varshak3826
    @varshak3826 2 роки тому

    how do u do modulo 11

    • @mrbulmerslearningzone
      @mrbulmerslearningzone  2 роки тому +2

      Modulo 11: A check digit according to Modulo 11 is used for ISBN.
      First all digits are multiplied individually with a multiplier. The multiplier corresponds to the position of the digit + 1. All resulting products are added. The result is then divided by 11. The resulting remainder is the check digit. If the check digit is 10, this number shall not be used as ISBN. The code would therefore be invalid.

  • @vivahapi
    @vivahapi Рік тому

    thanks

  • @healedmoon3877
    @healedmoon3877 Рік тому

    My man your the guy your lecture are just marvelous they are gorgeous thankyou bruh