CS 101/Additional Materials/Chapter 4

Section 4.2 Gates
Boolean Algebra/Logic gates http://www.tutorialspoint.com/computer_logical_organization/boolean_algebra.htm copyright 2016 This is an easy location to look up all the basics on boolean algebra, logic gates, truth tables and combinational circuits all in one location Sean Thomson Feb.13 2016

Boolean Algebra Truth Tables http://www.electronics-tutorials.ws/boolean/bool_7.html This website gives a good summary using tables that helped me remember the different operations of the gates. Rebecca Sherr 14 Oct 2015

http://www.ee.surrey.ac.uk/Projects/CAL/digital-logic/gatesfunc/index.html This website was a great site to summarize all the gates, truth tables, and expressions. In addition it gave you a small paragraph in order to summarize each gate.

https://www.youtube.com/watch?v=q2OBYz3K6PM 28 Sep. 2015 28 Jan. 2012 This link to a very helpful video helps explain what gates and circuits are used for. Unlike the book this explanation is simple and to the point. Although the math and apps are helpful this video gives a little more background and history on why they are used and how. Although circuits and gates are pretty to the point, it helps to learn how they are used in a computer and how they assist the programming factor of binary. Zachary Nader. This video helped explain the different gates and their truth tables. It had a lot of explanation about each gate and how they connect to different gates to create a circuit. Also he did some examples and made it easy to understand. Video created Jan. 28, 2012. Kristina Mironidis September 24, 2015

http://www.cs.umd.edu/class/sum2003/cmsc311/Notes/Comb/gates.html This website was very helpful in explaining the different logic gates. The website includes NOT gates, AND gates, OR gates, NAND gates, NOR gates, XOR gates, and XNOR gates. It also goes into the truth tables and the math behind the different gates. -Caitlyn Lambert-Hutchinson

https://www.youtube.com/watch?v=NsrYV59QFZk Within this video, the six gates as well as circuits are acknowledged. It demonstrates Voltage level and it's binary level, the Boolean algebra, logic diagram, truth tables, and adders/full adder. This video really simplifies understand gates. The examples presented were very well explained and quite logical at the same time. Christopher Phethean 2/12/2016

http://drstienecker.com/tech-332/3-logic-circuits-boolean-algebra-and-truth-tables/ This website was extremely helpful in trying to understand logic diagrams. There are ample examples of interpreting diagrams as well as step by step instructions on how to identify them using truth tables and Boolean expressions. There are also questions at the bottom of the page where if you were confused then you could get a clearer explanation. Zachary Brogna 9-25-15

http://computer.howstuffworks.com/boolean.htm This website helped me to better understand Boolean logic. It is a basic introduction to it in a very general sense, but there are a few things that I found that are extremely useful for me and possibly another student. - Joseph Clark

http://www.tutorialspoint.com/computer_logical_organization/logic_gates.htm This website summarized chapter 4 of our text pertaining to logic gates, boolean expressions and truth tables in a clear, concise manner. Bob Lafrance

https://www.youtube.com/watch?v=q2OBYz3K6PM 3. 12/7/2015 4. 1/12/2012 I found this tobe a very helpful resource because it discusses gates an circuts theory in a laymans terms and gradually escalates it throughout the video. I like seeing how things work while it is being explained so this video was very helpful

http://www.cs.umd.edu/class/sum2003/cmsc311/Notes/Comb/gates.html This website was very helpful in explaining the different logic gates. The website includes NOT gates, AND gates, OR gates, NAND gates, NOR gates, XOR gates, and XNOR gates. It also goes into the truth tables and the math behind the different gates. -Caitlyn Lambert-Hutchinson

https://www.youtube.com/watch?v=8IodGjURPsY This is a Youtube video posted by a student in 2013. He covers XOR and XNOR Logic Gates in this video. He shows a lot of different images and uses different colors for different topic points. Makes it easier to follow if you are a visual learner. -Rebecca Peacott 2/8/16

Basic Logic Gates https://www.youtube.com/watch?v=eJHmVlzH_9Q Added on February 8th, 2016. Link last updated on October 21st, 2012. Though this video seems short, it is a great way to recap the six different types of gates. The uploader also added in the tables to help show why each action is taking place when plugging in numbers from the table. This was a good way for me to review after reading the chapter and taking the chapter 4 quiz. Urooj Haider

http://www.bing.com/videos/search?q=gates+and+circuits&&view=detail&mid=7DC666A5ABF464A76EE67DC666A5ABF464A76EE6&FORM=VRDGAR this video gives a detailed explanation on gates and constructing circuits. It helped break everything down and give a visual of constructing circuits. Rebecca Campbell 2/9/16

http://www.facstaff.bucknell.edu/mastascu/elessonshtml/logic/logic1.html This is a good website to learn about the different types of gates with visual pictures and tables. This website also contains some simple problems to help you understand the basics of gates. Mike Huynh 2/13/16

Section 4.3 Constructing Gates
How do transistors work? http://www.explainthatstuff.com/howtransistorswork.html (last updated 2007) This is a good resource that gives some more information on what transistors are and how they work. Added by Zachary Halzel 2/11/16

Transistor Gates. http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/trangate.html it isn't listed when this page was last updated. access date 2/12/16. This link allows you to play around with different types of gates and describes how they work with transistors. Mike Wilbur.

Section 4.4 Circuits
Combine Gates into circuits http://www.electronics-tutorials.ws/combination/comb_1.html This link expresses how to combine gates into circuits. It help me to understand Boolean expressions. Bright Danso 13 Oct 2015

Combinational Circuits
Combinational Circuits- https://youtu.be/XCiLHOZsQl8 Added 2/9/2016. Link last updated 12/27/2007. Video explains combinational circuit design and how it works. Easy to understand and follow along. - Samantha Stuart

Adders
Adder and Half-Adders http://www.circuitstoday.com/half-adder-and-full-adder This website explained very well how adders and half-adders worked, and also helped me use learn "sum, carry" system for these adders. The website was last update February 10, 2011. -Zackery Squires, February 9, 2016

Multiplexers
Multiplexer Lesson

https://www.youtube.com/watch?v=MjO--13qjBU Uploaded on October 24, 2012. Posted here on February 13, 2016.

I found multiplexers to be the most difficult understand topic of the chapter, and the textbook's description of them was very brief. This video helped clear some things up for me about what they are and how they work.

- Andrew Lund

https://www.youtube.com/watch?v=hCrnDV1Li4M This video helped me understand the concept of multiplexers. It was Published on Apr 20, 2013 by Robot Brigade. Sworup Ojha 2/13/16

Section 4.5 Circuits as Memory
https://www.youtube.com/watch?v=3CALwL3ActA Professor Wurst's video on Flip-Flops

https://en.wikibooks.org/wiki/Digital_Circuits/Flip-Flops. Note that Prof Wurst does not cover the SR = 11 state where both outputs Q and ~Q = 0. Although the Q output is a Reset to 0, the ~Q output is not really ~Q, so not a good Flip-Flop. Added,2/13/16 by J. Young.

Seciton 4.5 Integrated Circuits
https://learn.sparkfun.com/tutorials/integrated-circuits It summarizes the topic of Integrated Circuits and showed their functions. -Justin Cabacungan (Date added: February 9, 2016)

http://www.explainthatstuff.com/integratedcircuits.html This website provides a good overview of integrated circuits, as well as their history. It also provides links to other various resources to learn more. Added by Kylie Sauter on 13 FEB 2016

Section 4.7 CPU Chips
How a CPU works https://www.youtube.com/watch?v=cNN_tTXABUA (Feb. 10, 2016) Published March 2013. In Chapter 4, it says that the next chapter would be more focused on CPU. If one does not have a good knowledge about CPU, a YouTube video could explain it better if the person is a visual learner. -Danielle Gary