Browse our Course Catalog - University Consortium. Droid. Kumarharmuscat.tripod.com/CP6009/lecture4.pdf. Chapter 3. The main theme of the chapter is how to allocate a single broadcast channel (versus point to point) among competing users.
Various approaches using static and dynamic channel allocation will be examined. Special attention will be given Ethernet. 4.1.1 Static Channel Allocation in LANs and MANs - Important to remember bursty nature of data communications. WANs not considered because normally connected via a point to point channel. Frequency Division Multiplexing - Frequency of one channel divided (usually evenly) among n users. Intuitively, static allocation results in restricting one user to one channel even when other channels are available. Generally we want delay to be small. For each of n subchannels, the mean delay time using FDM (TFDM) is: Generally, dividing a channel statically into n channels increases the average delay by a factor of n agreeing with the intuitive result from the diagrams. 4.2 Multiaccess Protocols - Dynamic channel allocation Important points 4.3 IEEE 802 Standards. The Elements of Computing Systems / Nisan & Schocken.
The Nand2Tetris course and book are completely self-contained, requiring only programming ability as a pre-requisite.
More accurately, the course consists of two subsets of projects. Projects 1-5 focus on building the hardware platform of the computer system. Projects 6-12 build the computer's software hierarchy. Technically, one can build the hardware platform without a programming experience. There is no way though to complete projects 6-12 without knowing to program in some decent language like Java or Python.
If you wish to learn programming, you can find several good and freely-available courses in such places as Coursera, edX, and Udacity. If you know C++, C#, or some other similar object-oriented langauge, you'll be fine also. Video Lecture: From Nand to Tetris in 12 Steps. I watched another really great video lecture.
It's called 'From Nand to Tetris - Building a Modern Computer From First Principles'. At first I thought it was just a video lecture by some computer hobbyist, but it turned out to be a lecture about a new computer science course for both undergraduate and graduate students, developed by professor Shimon Schocken. The goal of this course is to teach students various levels of abstractions in computing by letting them build a computer from scratch and have it run a computer game. One of Shimon Schocken's colleagues says that, "Computer science is a thousand layers of abstraction", which is quite true. If we write a program in a high level language, it gets translated into assembly language which in turn gets translated into machine code, which in turn gets executed on hardware platform, which in turn uses logic gates to perform computation which is itself electrical engineering and physics. And here is the whole 1 hour lecture:
What Every Computer Scientist Should Know About Floating-Point Arithmetic. This appendix is an edited reprint of the paper , by David Goldberg, published in the March, 1991 issue of Computing Surveys.
Copyright 1991, Association for Computing Machinery, Inc., reprinted by permission. Abstract Floating-point arithmetic is considered an esoteric subject by many people. This is rather surprising because floating-point is ubiquitous in computer systems. Almost every language has a floating-point datatype; computers from PCs to supercomputers have floating-point accelerators; most compilers will be called upon to compile floating-point algorithms from time to time; and virtually every operating system must respond to floating-point exceptions such as overflow. Categories and Subject Descriptors: (Primary) C.0 [Computer Systems Organization]: General -- ; D.3.4 [Programming Languages]: Processors -- ; G.1.0 [Numerical Analysis]: General -- (Secondary) General Terms: Algorithms, Design, Languages Introduction Rounding Error Floating-point Formats Relative Error and Ulps.
General. General. RP. Bada. Graphics. 13 LinkedIn Mistakes You Should Avoid. Java. Computer Science.