Please tell me you teach for a living! Your lectures are easier to follow than any professors I've taken.

@ComputerScienceLessons

3 жыл бұрын

I have been a teacher for most of my working life. Either in schools, or training software engineers. I am currently Head of Computer Science in UK school. Thanks for the lovely comment. :)KD

@SQUELCH-zj7il

Жыл бұрын

@@arjay_2002 So he's still knowledgeable on the topic

@utility507A

9 ай бұрын

I couldn't agree more. I'm doing a digital electronics course right now, and this single 15 minute video cleared up all the confusion my professor has caused in the past two weeks. I have mid-terms coming and this lecture series is going to save me. Thank you so much!!!

The textbook for my computer hardware class is entirely white page/black text, no color, minimal diagrams. Made it very hard to get boolean logic and algebra down. This video has already taught me so much more than the book did 3 weeks into the semster. Thanks a ton!

@ComputerScienceLessons

6 жыл бұрын

You are very welcome. I was the inadequacies of the majority of the textbooks out there that prompted me to make these videos. Having said that, I do like the A level computer science textbooks by Heathcote and Heathcote.

@JayJay-ki4mi

Жыл бұрын

I've got essential computer mathematics, practical discrete mathematics and concrete mathematics for computer science. All 3 are dry. After watching this video, and revisiting the textbooks it all made sense. Maybe I'm a visual learner.

@mawataksmara6653

Жыл бұрын

Hi Jachob, I need assistant for my digital class

This is fantastic. It's amazing what proper preparation and presentation can do. This obviously wasn't just banged off in a spare 20 minutes at the end of a day. I really appreciate the work you put into this. Trying to read the material and coming across something like 1 + 1 = 1 for the first time confused me, but you cleared it up with no doubts as to what's going on. Thanks a million!

@ComputerScienceLessons

4 жыл бұрын

You are very welcome indeed. Thanks for acknowledging the time and effort. :) KD

@thatonellamawhoissoobsesse8138

Жыл бұрын

I kinda see it as math involving the description of nouns through numbers -1 being closer to "one in the presence of one" than "1-1=0" Theres a name for this type of information under statistical sociology being descriptive/representative data instead of a variable data (integers gathered for data) idk :) just rambling, this is my first video on boolean algebra

Having locked maths away in a dusty corner of my brain about 30 years ago, I now find myself needing a serious bootcamp as I teach myself coding and software development. Your videos are an absolute godsend - just head and shoulders above every other resource I've looked at. Thank you so much!

im from germany and its really hard to find good material on all of this, been struggling with my homework and didnt really know what to do but your calm and collective way of explaining things really helps. presentation wise perfect. what a blessing

This is one of the most succinct explanations I've found on the topic. Thank you, for the great tutorial!

@ComputerScienceLessons

4 жыл бұрын

You are welcome. :) KD

Many thanks for the excellent series of videos on Boolean logic, I've been using these with my A-level classes over a number of years and found them very valuable.

@ComputerScienceLessons

3 жыл бұрын

Delighted to hear it. Thanks for commenting. :)KD

this is one of the best explanations of anything I've ever come across. I've been doing electrical engineering for 5 months now and only just come across your channel. Subbed! Thank you!

@ComputerScienceLessons

4 жыл бұрын

I'm delighted to hear it was useful. Thanks for the great comment. :)KD

Thank you, this is making much more sense now. Started JavaScript, from there had to understand Boolean algebra. For a person who always struggled with any kind of math this is making sense.

THANK YOU ! Your explanation is so clear and easy to follow, much better than what i have from my school :)

Your lectures are easier to follow than any professors I've taken. Exactly Thanks Sir God Bless You

@ComputerScienceLessons

2 жыл бұрын

You are most welcome. Delighted to help :)KD

What have I been watching? Whaoooo! I hit the subscribe button 3 minutes into your first video. The voice and explanation...Whaooo! Thanks sooOOoooOOOOooo much.

@ComputerScienceLessons

Жыл бұрын

You are most welcome, and thank you :)KD

this is making online uni so much more manageable, thank you so much good sir! :)

I appreciate the simplicity of the name of the channel.

I'm at the University of Edinburgh, and I wish our lectures and tutorials were even 10% as clear as your videos. Thanks!

Studying for an ICT exam tomorrow, these videos are really helpful.

Brilliant video sir. Really well explained. I've been stuggling with grasping A2 Boolean Algebra laws because our teacher was rushing the topic too fast, and our Computer Science A level coursebook hardly explains it in such detail...

@ComputerScienceLessons

Жыл бұрын

Glad to help :)KD

Thanks from Bharat I left this topic because single distributive formula which is given in wrong in my book now I corrected this it saved my time a lot thanks sir

I am sort of late to the party but i still felt the need to praise you for this video, you've done a great job. I had absolutely no idea about logic gates etc. beforehand but got everything after these 15 minutes

@ComputerScienceLessons

2 жыл бұрын

That's really nice to hear. Thank you :)KD

To the host of CS,I say Thankyou for taking me to class. This is the first of your vids I've watched,I Believe. Yet I'll be watching more for sure!!! *Subbed*

@ComputerScienceLessons

3 ай бұрын

You are most welcome :)KD

Omg I love you sooooo muchhhhhhhhhhhh !!!!! You're a lifesaver my friend

People like you make Math and Computer Science bearable for people who cannot understand logic fast enough like a lot of people do. It takes me hours to figure out how a concept works and so videos that explain it in simple terms make it extremely helpful for me to understand these topics. Math and Computer Science is more fun when we have people like you, Ben Eater, Neso Academy, The Organic Chemistry Tutor, and many other amazing people. Thank you for this series and all the other videos you have put out!

@excalibur6246

Жыл бұрын

Organic chemistry tutor is the goat

I want to cry happy tears, thank you so much Sir❤️

@ComputerScienceLessons

4 ай бұрын

You're welcome :)KD

This is a great video sir ,very well explained!!

@ComputerScienceLessons

6 жыл бұрын

Tnx. :)

Thx sir your voice is so clear and the De Morgan's law really blown my mind

@ComputerScienceLessons

4 жыл бұрын

Thanks for the comment. :)KD

Great video! Clear and very useful. Keep going

thx alot, mr brown for explaining this. I understood with ease in just about 30 minutes

What a great presentation and explanation. Thank you so much!

@ComputerScienceLessons

4 жыл бұрын

You are very welcome

This helped visualize the text I'm using so well. Thank you.

Brilliant video, thank you so much for your help!

@mohsinsultan3947

4 жыл бұрын

😆

I was struggling to understand the equations and tables my school uses to teach. Now I got the grasp! You're an amazing teacher, thank you.

@ComputerScienceLessons

3 жыл бұрын

Thank YOU. Delighted to help :)KD

Brilliantly simple, well explained. Very helpful.

@ComputerScienceLessons

3 жыл бұрын

You are most welcome. Thanks for the comment :)KD

what an easy to follow break down! thank you

Thank you sir for this video. It's helpful.

Now am satisfied with your explanation. Thank you sir.

@ComputerScienceLessons

4 жыл бұрын

You are most welcome

i like all yo videos sir they are easy and very modern,you make me like the subject i had faileed and had no intrest in it THANKS ALOT,WE/I need more videos from you please

This is a great video, and the narrator has a fantastic voice.

@ComputerScienceLessons

5 жыл бұрын

The narrator thanks you for the comment.

Thank u so much for this video, i have a test on this stuff coming up and my teacher is completely useless : 'D Your explanations were much clearer and helped me figure out the concepts much better

Very Good Video, will help me in my digital class, Very well explained..

Thanks alot sir. Made it very easy to understand. Love the Ascent too.

@ComputerScienceLessons

6 жыл бұрын

You are very welcome.

@ahmadshumail731

4 жыл бұрын

accent*

Thank you! I have an exam tomorrow and your video is really helpful.

@ComputerScienceLessons

Жыл бұрын

Good luck :)KD

Thanks for the great explanation!

Explained really well. Thank you so much

You are the best teacher on Earth! Amaizing video! Many Million Thanks :)

@ComputerScienceLessons

2 жыл бұрын

Perhaps not. But I appreciate the sentiment :)KD

Thank you so much! This is very well-explained

Such a useful video. Thank you so much. I can go and explain Logic gates to my Y10 Computer Science group

@ComputerScienceLessons

5 жыл бұрын

Thanks for the comment. I'm not sure I would go this far with ALL of my Y10 class (writing expressions from simple gate combinations is usually enough for mine), but many would benefit from an insight into this.

6yrs later still so much useful

@ComputerScienceLessons

2 ай бұрын

Thank you :)KD

Thank you for making this make sense!

@ComputerScienceLessons

Жыл бұрын

You're very welcome :)KD

Great video! Thank you very much :)

I'm not sure if this can be considered algebra but I believe it is. *S* is for *Step* 12:24 (A+B) * (A+C) *1S1* : = AA + AB + AC + BC {In binary A squared (A*A) is equal to A, so replace it} *1S2* : =A + AB + AC + BC {In addition I can place parenthesis anywhere} *1S3* : = (A + AB + AC) + BC *1S4* : = A(1 + B + C) + BC {In binary any thing plus one is equal to one. So (1 + B + C) = 1 ... (A * 1 = A)} *1S5* : = A + BC And we are done! Edit: 13:06 A * (A+B) *2S1* : = AA + AB *2S2* : = A + AB {Same as *1S2* } *2S3* : = A(1+B) *2S4* : = A*1 {Same as *1S5* } *2S5* : = A *3S1* ... {Start from *2S2* and continue}

@faridgulum1226

4 жыл бұрын

thank you for the explanation. I got stuck there for a moment.

You are awesome man!!

Awesome videos! Thank you for sharing

@ComputerScienceLessons

3 жыл бұрын

You're very welcome :)KD

I think it's much easier to understand with circle pictures, or if wires were colored (green = 1, red = 0)

I've found that the *absorption law* is the most difficult one to spot. Thankfully, once you learn about K-maps, simplification becomes a much easier and less error prone process. :)

@ComputerScienceLessons

6 жыл бұрын

For me, the biggest problem is knowing when to stop. K-Maps are definitely more conclusive.

Superb clear speaker. Little confused with the NOT graphic and wires jumping over others. Otherwise I will refresh my degree course some 50 years ago in Bolton

@ComputerScienceLessons

3 ай бұрын

Thank you. Hopefully, you made sense of the crossing wires :)KD

Thank you for the understandable video

@ComputerScienceLessons

4 жыл бұрын

You're welcome. :)KD

so helpful thank you!

@ComputerScienceLessons

Жыл бұрын

You are most welcome :)KD

This is so helpful!!!

@ComputerScienceLessons

6 жыл бұрын

:) Tnx for saying so

thankyou for this awesome explanation

@ComputerScienceLessons

3 жыл бұрын

You're very welcome :)KD

Thanks sir you lecture really professionally

@ComputerScienceLessons

3 жыл бұрын

Thank you :)KD

I really appreciate you explanation

@ComputerScienceLessons

3 жыл бұрын

Delighted to help. Thanks for commenting :)KD

Thanks a bunch!

@ComputerScienceLessons

2 жыл бұрын

You're very welcome :)KD

You you suggest a good book that is as good as your explanation in this video. I need to clear many more concepts such as that of Conditional Statements. There is no video I can find where you have covered that concept. Thanks.

This is so badass!!

@ComputerScienceLessons

2 жыл бұрын

Cheers me dear :)KD

Thanks you for video

Nicholas from Kenya,,, thank you for the good video

@ComputerScienceLessons

2 жыл бұрын

My pleasure :)KD

Very nice video

Thank you so much 🙏🏽🙏🏽

@ComputerScienceLessons

Жыл бұрын

You are very welcome :)KD

Thank you so much

@ComputerScienceLessons

2 жыл бұрын

You're most welcome :)KD

damn this is so pog thank you so much

Thank you a lot

@ComputerScienceLessons

3 жыл бұрын

You are most welcome :)KD

You are an amazing person

@ComputerScienceLessons

3 жыл бұрын

Thank you so much :)KD

Thank you! This is showing genius idea .( greater than in my school BTW )

@ComputerScienceLessons

2 жыл бұрын

You are most welcome. :)KD

Thanks!

I didn't know that David Attenborough did boolean algebraic commentary as well. Interesting.

@ComputerScienceLessons

4 жыл бұрын

He's one of my heroes. Thanks for taking time to comment. :)KD

might be a silly question but how do you know what input values goes on the truth table?

@ComputerScienceLessons

4 жыл бұрын

Not a silly question, but fundamental. Take a quick look at this video: kzread.info/dash/bejne/dKJ2lM9qnrvAaJc.html The idea is to include all of the input possibilities. :)KD

6:57 I don't understand why in Boolean addition 1+1 =1. So, it is not addition mod 2. Is it just the desired definition to correspond to what we want to represent, in this case an OR? I just noticed, if we follow a mod 2 arithmetic, so that 1+1 =0, then we get XOR.

@other39201

4 жыл бұрын

I'm a beginner but I think I have a good way of thinking about it: If we think of 1 or TRUE as just any random voltage and 0 or FALSE as no voltage at all - we can say that NO VOLTAGE + NO VOLTAGE = NO VOLTAGE (0+0=0) and that SOME VOLTAGE + SOME VOLTAGE = SOME VOLTAGE (1+1= 1) So basically 1 just represents SOMETHING and 0 represents NOTHING and when you add SOMETHING with SOMETHING the answer will always be SOMETHING :)

@MyWissam

4 жыл бұрын

@@other39201 I like that!

I really like the way you explain things with your voice it’s like you are voice acting a lore or something.

@ComputerScienceLessons

4 жыл бұрын

Thanks for the lovely comment. :)KD

❤❤❤Thank you so much

@ComputerScienceLessons

Жыл бұрын

You are very welcome :)KD

Dude you rock👍

@ComputerScienceLessons

Жыл бұрын

Thank you :)KD

Some one mentioned Boolean algebra and I didn’t know what it was. I watched this, and still don’t know what it is. Thanks, it’s me not you. I swear.

@ComputerScienceLessons

3 жыл бұрын

Hi Paradox. You need to be familiar with the fundamentals of logic gates first, and be aware that logic gates can be combined to make useful circuits. Boolean algebra gives us a way to describe combinations of logic gates, that is, a way to describe electronic circuits that perform specific tasks. Simplifying Boolean algebra expressions is a technique that circuit designers can use to simplify circuits. Of course, all that is easier said than done; it takes plenty of practice to become proficient with Boolean algebra (and, to be honest, circuit designers use clever software to do it for them these days). :)KD

@inpickle

7 ай бұрын

@@ComputerScienceLessonsWould you recommend and resources to read / watch before this?

Sooo algebraically product rules are covered under addition rules? ..is all that i understoon Plus that the -. symbol means a type of "sum of.."

Thank you,😘😘

@ComputerScienceLessons

2 жыл бұрын

You're welcome :)KD

I must say I've been around the game for a few years now and I'm being actively involved in teacher training taking many courses on the Isaac platform running many CPD's curriculum's

@ComputerScienceLessons

3 жыл бұрын

and...?

That feel when youtube is far better than listening to the actual teacher.

@ComputerScienceLessons

2 жыл бұрын

Sadly, teachers don't come with a 'pause' button :)KD

You sound like one of the lecturers that used to do the database classes in Murdoch Uni.

@ComputerScienceLessons

2 жыл бұрын

I hope they sounded good :)KD

@TowerBooks3192

2 жыл бұрын

@@ComputerScienceLessons he was the best. Sadly from what I heard he left probably because od funding issues and whatnot. Thanks for your tutorials. I feel like I got a fighting chance now.

How can this be? B V ( B ^ C ) = B ( If we dont have truth table)

How did (A.B) + (A.C) +B became (A.C)+B in the last. I couldn't understand this step, shouldnt it become A.(B+C)+B ?

I wish you were my teacher back then

thanx ;)

14:39 Summary Page of all 19 laws

@ComputerScienceLessons

3 жыл бұрын

Maybe it belongs on a T-shirt!

3:31 1 ^ A = 1 is true fo 2nd column ?

@ComputerScienceLessons

3 жыл бұрын

1 AND A is not necessarily 1. If A = 0, then 1 AND A = 0.

thanks , it is very difficult to learn for a child of class IX

@ComputerScienceLessons

3 жыл бұрын

Stick with it and take your time. Make sure you are comfortable with the standard searching and sorting algorithms and Big O will be much easier :)KD

good

Trying not to freak out, here spending my Christmas learning my A level course 🤣

Way better than my proffesor

@ComputerScienceLessons

3 жыл бұрын

Thank you :)KD

What of (AUB) =A

The dominance law states that x + 1 = 1 If we go by that logic, does that mean that x' + 1 = 1?

@carloscarvajal7999

5 жыл бұрын

by logic 0 + 1 = 1 so yeah

Kaway-kaway sa mga gikan sa Moodle. ✋✋✋

Imagine having a teacher as hood as him in school.

@ComputerScienceLessons

2 жыл бұрын

I'm pretty strict! :)KD