This is part one of the basics in Digital Systems. Beginning with the existence of Boolean Algebra, take on the form of “true” and “false”. This area of thought process is called “Deductive Logic”. This presentation explains the three most common gates, its meanings and how it relates to Boolean algebra. The fundamentals to Digital Systems relates to 1 and 0’s (binary numbers). Binary logic consists of binary values and logical operations. Variables are designated by letters of the alphabet. This series shows how binary numbers, truth tables, Boolean equations, Karnaugh maps and timing diagrams are used to communication within computers.
Narrated along with animation, part one of this series introduces the logic of starting a car and how to translate this information into a truth table. The presentation continues to explain the most significant bit orientation of a truth table, the introduction of ‘AND’, ‘OR’, and ‘NOT’ gates, the gates’ truth table with two variables, and how these gates translates into a timing signal.
http://www.youtube.com/watch?v=N2nLcQ3BZOM&feature=youtu.be
in regards to the Video: What are Digital Systems? (Part One)
I found it Extremely Difficult to listen to the speaker, her speaking patterns are lets say annoying at best It might be more appropriate to get someone with a more neutral pattern of speech to give dissertations of this type.
This is the failing of the US education system to promote not correct this.
I dont care what color you are you still must speak clearly in English to get ahead.
No real employer would tolerate this to begin with, no mater what her qualifications are her resume would go to the bottom of the pile upon hearing her speak.
Not racism Reality fair or not.
Could you listen for long if someone spoke this way in a corporate board meeting…
Thank you for your opinion. I will do better at articulating more clearly and speak at a monotone and even pace.
I have to disagree with the first comment. I found it very helpful and I thank you for taking the time to do this. I understood every word just fine.
(To me the first comment was based on race. My personal opinion.)
I don’t think you should work on being more monotone. I thought the inflections were helpful to the understanding. I don’t think there were any articulation problems either. I could understand every word. What made it sound strange was the pausing and the placement of emphasis. It sounded like it was scripted and sometimes there were pauses to make sure the next word was said correctly. It was usually at those moments that the next word would have extra emphasis and make it harder to understand the meaning of the sentence. This is something that is prevented mostly by practicing with the script to make it flawless or by speaking more naturally and unscripted, which has it’s dangers of going off on tangents or fumbling with words more if you aren’t a practiced presenter.
Overall, the audio presentation was technically accurate and clear but did require a focused concentration on the words, because the visual presentation didn’t match up well with the words. The slide transitions were distracting, and a lot of the explanations could have been backed up with visual changes to the slides. Particularly when formulas are being discussed. If you are looking at and trying to understand what is on the slide, it is more difficult to listen to technical information, unless the visual cues and the explanations line up perfectly so that they add meaning to one another rather than diverting attention. If you three tables on a slide, perhaps each, could appear as that gate is being discussed rather than all appearing at once. When you discuss the representation of a not gate with an apostrophe or an overrbar, having each appear as (or close to when) they are mentioned, directs your attention to specifically what you are mentioning and solidfys what you are saying by displaying what an overbar looks like (which in this case looked more like a slash).
I think it would be helpful to somebody with some exposure to the topic trying to figure out the specifics of the gates and logic, but to somebody with no exposure, may have been a bit overwhelming.
Hi Felicia,
Great feedback. In reviewing the current video, I have created another video that focuses solely on one gate, the ‘XOR’ gate. This will help our learning engineers to understand clearly. Inasmuch, I am considering breaking this video into three parts so that it focuses on each gate separately.
The upcoming videos will have better timing and points of emphasis on what I am discussing, making it easier to follow.
Thank you kindly,
Natasha