Fractorium and “Cross” Variation Tutorial
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Chapter 1: Introduction What Is an Operating System?
Chapter 1: Introduction What is an Operating System? Mainframe Systems Desktop Systems Multiprocessor Systems Distributed Systems Clustered System Real -Time Systems Handheld Systems Computing Environments Operating System Concepts 1.1 Silberschatz, Galvin and Gagne 2002 What is an Operating System? A program that acts as an intermediary between a user of a computer and the computer hardware. Operating system goals: ) Execute user programs and make solving user problems easier. ) Make the computer system convenient to use. Use the computer hardware in an efficient manner. Operating System Concepts 1.2 Silberschatz, Galvin and Gagne 2002 1 Computer System Components 1. Hardware – provides basic computing resources (CPU, memory, I/O devices). 2. Operating system – controls and coordinates the use of the hardware among the various application programs for the various users. 3. Applications programs – define the ways in which the system resources are used to solve the computing problems of the users (compilers, database systems, video games, business programs). 4. Users (people, machines, other computers). Operating System Concepts 1.3 Silberschatz, Galvin and Gagne 2002 Abstract View of System Components Operating System Concepts 1.4 Silberschatz, Galvin and Gagne 2002 2 Operating System Definitions Resource allocator – manages and allocates resources. Control program – controls the execution of user programs and operations of I/O devices . Kernel – the one program running at all times (all else being application programs). -
Golden Ratio: a Subtle Regulator in Our Body and Cardiovascular System?
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/306051060 Golden Ratio: A subtle regulator in our body and cardiovascular system? Article in International journal of cardiology · August 2016 DOI: 10.1016/j.ijcard.2016.08.147 CITATIONS READS 8 266 3 authors, including: Selcuk Ozturk Ertan Yetkin Ankara University Istinye University, LIV Hospital 56 PUBLICATIONS 121 CITATIONS 227 PUBLICATIONS 3,259 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: microbiology View project golden ratio View project All content following this page was uploaded by Ertan Yetkin on 23 August 2019. The user has requested enhancement of the downloaded file. International Journal of Cardiology 223 (2016) 143–145 Contents lists available at ScienceDirect International Journal of Cardiology journal homepage: www.elsevier.com/locate/ijcard Review Golden ratio: A subtle regulator in our body and cardiovascular system? Selcuk Ozturk a, Kenan Yalta b, Ertan Yetkin c,⁎ a Abant Izzet Baysal University, Faculty of Medicine, Department of Cardiology, Bolu, Turkey b Trakya University, Faculty of Medicine, Department of Cardiology, Edirne, Turkey c Yenisehir Hospital, Division of Cardiology, Mersin, Turkey article info abstract Article history: Golden ratio, which is an irrational number and also named as the Greek letter Phi (φ), is defined as the ratio be- Received 13 July 2016 tween two lines of unequal length, where the ratio of the lengths of the shorter to the longer is the same as the Accepted 7 August 2016 ratio between the lengths of the longer and the sum of the lengths. -
Personal-Computer Systems • Parallel Systems • Distributed Systems • Real -Time Systems
Module 1: Introduction • What is an operating system? • Simple Batch Systems • Multiprogramming Batched Systems • Time-Sharing Systems • Personal-Computer Systems • Parallel Systems • Distributed Systems • Real -Time Systems Applied Operating System Concepts 1.1 Silberschatz, Galvin, and Gagne Ď 1999 What is an Operating System? • A program that acts as an intermediary between a user of a computer and the computer hardware. • Operating system goals: – Execute user programs and make solving user problems easier. – Make the computer system convenient to use. • Use the computer hardware in an efficient manner. Applied Operating System Concepts 1.2 Silberschatz, Galvin, and Gagne Ď 1999 Computer System Components 1. Hardware – provides basic computing resources (CPU, memory, I/O devices). 2. Operating system – controls and coordinates the use of the hardware among the various application programs for the various users. 3. Applications programs – define the ways in which the system resources are used to solve the computing problems of the users (compilers, database systems, video games, business programs). 4. Users (people, machines, other computers). Applied Operating System Concepts 1.3 Silberschatz, Galvin, and Gagne Ď 1999 Abstract View of System Components Applied Operating System Concepts 1.4 Silberschatz, Galvin, and Gagne Ď 1999 Operating System Definitions • Resource allocator – manages and allocates resources. • Control program – controls the execution of user programs and operations of I/O devices . • Kernel – the one program running at all times (all else being application programs). Applied Operating System Concepts 1.5 Silberschatz, Galvin, and Gagne Ď 1999 Memory Layout for a Simple Batch System Applied Operating System Concepts 1.7 Silberschatz, Galvin, and Gagne Ď 1999 Multiprogrammed Batch Systems Several jobs are kept in main memory at the same time, and the CPU is multiplexed among them. -
The Mathematics of Art: an Untold Story Project Script Maria Deamude Math 2590 Nov 9, 2010
The Mathematics of Art: An Untold Story Project Script Maria Deamude Math 2590 Nov 9, 2010 Art is a creative venue that can, and has, been used for many purposes throughout time. Religion, politics, propaganda and self-expression have all used art as a vehicle for conveying various messages, without many references to the technical aspects. Art and mathematics are two terms that are not always thought of as being interconnected. Yet they most definitely are; for art is a highly technical process. Following the histories of maths and sciences – if not instigating them – art practices and techniques have developed and evolved since man has been on earth. Many mathematical developments occurred during the Italian and Northern Renaissances. I will describe some of the math involved in art-making, most specifically in architectural and painting practices. Through the medieval era and into the Renaissance, 1100AD through to 1600AD, certain significant mathematical theories used to enhance aesthetics developed. Understandings of line, and placement and scale of shapes upon a flat surface developed to the point of creating illusions of reality and real, three dimensional space. One can look at medieval frescos and altarpieces and witness a very specific flatness which does not create an illusion of real space. Frescos are like murals where paint and plaster have been mixed upon a wall to create the image – Michelangelo’s work in the Sistine Chapel and Leonardo’s The Last Supper are both famous examples of frescos. The beginning of the creation of the appearance of real space can be seen in Giotto’s frescos in the late 1200s and early 1300s. -
Operating System
OPERATING SYSTEM INDEX LESSON 1: INTRODUCTION TO OPERATING SYSTEM LESSON 2: FILE SYSTEM – I LESSON 3: FILE SYSTEM – II LESSON 4: CPU SCHEDULING LESSON 5: MEMORY MANAGEMENT – I LESSON 6: MEMORY MANAGEMENT – II LESSON 7: DISK SCHEDULING LESSON 8: PROCESS MANAGEMENT LESSON 9: DEADLOCKS LESSON 10: CASE STUDY OF UNIX LESSON 11: CASE STUDY OF MS-DOS LESSON 12: CASE STUDY OF MS-WINDOWS NT Lesson No. 1 Intro. to Operating System 1 Lesson Number: 1 Writer: Dr. Rakesh Kumar Introduction to Operating System Vetter: Prof. Dharminder Kr. 1.0 OBJECTIVE The objective of this lesson is to make the students familiar with the basics of operating system. After studying this lesson they will be familiar with: 1. What is an operating system? 2. Important functions performed by an operating system. 3. Different types of operating systems. 1. 1 INTRODUCTION Operating system (OS) is a program or set of programs, which acts as an interface between a user of the computer & the computer hardware. The main purpose of an OS is to provide an environment in which we can execute programs. The main goals of the OS are (i) To make the computer system convenient to use, (ii) To make the use of computer hardware in efficient way. Operating System is system software, which may be viewed as collection of software consisting of procedures for operating the computer & providing an environment for execution of programs. It’s an interface between user & computer. So an OS makes everything in the computer to work together smoothly & efficiently. Figure 1: The relationship between application & system software Lesson No. -
Leonardo Da Vinci's Study of Light and Optics: a Synthesis of Fields in The
Bitler Leonardo da Vinci’s Study of Light and Optics Leonardo da Vinci’s Study of Light and Optics: A Synthesis of Fields in The Last Supper Nicole Bitler Stanford University Leonardo da Vinci’s Milanese observations of optics and astronomy complicated his understanding of light. Though these complications forced him to reject “tidy” interpretations of light and optics, they ultimately allowed him to excel in the portrayal of reflection, shadow, and luminescence (Kemp, 2006). Leonardo da Vinci’s The Last Supper demonstrates this careful study of light and the relation of light to perspective. In the work, da Vinci delved into the complications of optics and reflections, and its renown guided the artistic study of light by subsequent masters. From da Vinci’s personal manuscripts, accounts from his contemporaries, and present-day art historians, the iterative relationship between Leonardo da Vinci’s study of light and study of optics becomes apparent, as well as how his study of the two fields manifested in his paintings. Upon commencement of courtly service in Milan, da Vinci immersed himself in a range of scholarly pursuits. Da Vinci’s artistic and mathematical interest in perspective led him to the study of optics. Initially, da Vinci “accepted the ancient (and specifically Platonic) idea that the eye functioned by emitting a special type of visual ray” (Kemp, 2006, p. 114). In his early musings on the topic, da Vinci reiterated this notion, stating in his notebooks that, “the eye transmits through the atmosphere its own image to all the objects that are in front of it and receives them into itself” (Suh, 2005, p. -
Computer Vision Today Introductions Introductions Computer Vision Why
Today • Course overview • Requirements, logistics Computer Vision • Image formation Thursday, August 30 Introductions Introductions • Instructor: Prof. Kristen Grauman grauman @ cs TAY 4.118, Thurs 2-4 pm • TA: Sudheendra Vijayanarasimhan svnaras @ cs ENS 31 NQ, Mon/Wed 1-2 pm • Class page: Check for updates to schedule, assignments, etc. http://www.cs.utexas.edu/~grauman/courses/378/main.htm Computer vision Why vision? • Automatic understanding of images and • As image sources multiply, so do video applications • Computing properties of the 3D world from – Relieve humans of boring, easy tasks visual data – Enhance human abilities • Algorithms and representations to allow a – Advance human-computer interaction, machine to recognize objects, people, visualization scenes, and activities. – Perception for robotics / autonomous agents • Possible insights into human vision 1 Some applications Some applications Navigation, driver safety Autonomous robots Assistive technology Surveillance Factory – inspection Monitoring for safety (Cognex) (Poseidon) Visualization License plate reading Visualization and tracking Medical Visual effects imaging (the Matrix) Some applications Why is vision difficult? • Ill-posed problem: real world much more complex than what we can measure in Situated search images Multi-modal interfaces –3D Æ 2D • Impossible to literally “invert” image formation process Image and video databases - CBIR Tracking, activity recognition Challenges: robustness Challenges: context and human experience Illumination Object pose Clutter -
COSC 6385 Computer Architecture - Multi-Processors (IV) Simultaneous Multi-Threading and Multi-Core Processors Edgar Gabriel Spring 2011
COSC 6385 Computer Architecture - Multi-Processors (IV) Simultaneous multi-threading and multi-core processors Edgar Gabriel Spring 2011 Edgar Gabriel Moore’s Law • Long-term trend on the number of transistor per integrated circuit • Number of transistors double every ~18 month Source: http://en.wikipedia.org/wki/Images:Moores_law.svg COSC 6385 – Computer Architecture Edgar Gabriel 1 What do we do with that many transistors? • Optimizing the execution of a single instruction stream through – Pipelining • Overlap the execution of multiple instructions • Example: all RISC architectures; Intel x86 underneath the hood – Out-of-order execution: • Allow instructions to overtake each other in accordance with code dependencies (RAW, WAW, WAR) • Example: all commercial processors (Intel, AMD, IBM, SUN) – Branch prediction and speculative execution: • Reduce the number of stall cycles due to unresolved branches • Example: (nearly) all commercial processors COSC 6385 – Computer Architecture Edgar Gabriel What do we do with that many transistors? (II) – Multi-issue processors: • Allow multiple instructions to start execution per clock cycle • Superscalar (Intel x86, AMD, …) vs. VLIW architectures – VLIW/EPIC architectures: • Allow compilers to indicate independent instructions per issue packet • Example: Intel Itanium series – Vector units: • Allow for the efficient expression and execution of vector operations • Example: SSE, SSE2, SSE3, SSE4 instructions COSC 6385 – Computer Architecture Edgar Gabriel 2 Limitations of optimizing a single instruction -
Linking Math with Art Through the Elements of Design
2007 Asilomar Mathematics Conference Linking Math With Art Through The Elements of Design Presented by Renée Goularte Thermalito Union School District • Oroville, California www.share2learn.com [email protected] The Elements of Design ~ An Overview The elements of design are the components which make up any visual design or work or art. They can be isolated and defined, but all works of visual art will contain most, if not all, the elements. Point: A point is essentially a dot. By definition, it has no height or width, but in art a point is a small, dot-like pencil mark or short brush stroke. Line: A line can be made by a series of points, a pencil or brush stroke, or can be implied by the edge of an object. Shape and Form: Shapes are defined by lines or edges. They can be geometric or organic, predictably regular or free-form. Form is an illusion of three- dimensionality given to a flat shape. Texture: Texture can be tactile or visual. Tactile texture is something you can feel; visual texture relies on the eyes to help the viewer imagine how something might feel. Texture is closely related to Pattern. Pattern: Patterns rely on repetition or organization of shapes, colors, or other qualities. The illusion of movement in a composition depends on placement of subject matter. Pattern is closely related to Texture and is not always included in a list of the elements of design. Color and Value: Color, also known as hue, is one of the most powerful elements. It can evoke emotion and mood, enhance texture, and help create the illusion of distance. -
Arm Streamline Tutorial Analyzing an Example Streamline Report with Arm
Arm Streamline Tutorial Revision: NA Analyzing an example Streamline report with Arm DS Non-Confidential Issue 0.0 Copyright © 2021 Arm Limited (or its affiliates). NA All rights reserved. Arm Streamline Tutorial Analyzing an example Streamline NA report with Arm DS Issue 0.0 Arm Streamline Tutorial Analyzing an example Streamline report with Arm DS Copyright © 2021 Arm Limited (or its affiliates). All rights reserved. Release information Document history Issue Date Confidentiality Change 0.0 30th of Non- First version March 2021 Confidential Confidential Proprietary Notice This document is CONFIDENTIAL and any use by you is subject to the terms of the agreement between you and Arm or the terms of the agreement between you and the party authorized by Arm to disclose this document to you. This document is protected by copyright and other related rights and the practice or implementation of the information contained in this document may be protected by one or more patents or pending patent applications. No part of this document may be reproduced in any form by any means without the express prior written permission of Arm. No license, express or implied, by estoppel or otherwise to any intellectual property rights is granted by this document unless specifically stated. Your access to the information in this document is conditional upon your acceptance that you will not use or permit others to use the information: (i) for the purposes of determining whether implementations infringe any third party patents; (ii) for developing technology or products which avoid any of Arm's intellectual property; or (iii) as a reference for modifying existing patents or patent applications or creating any continuation, continuation in part, or extension of existing patents or patent applications; or (iv) for generating data for publication or disclosure to third parties, which compares the performance or functionality of the Arm technology described in this document with any other products created by you or a third party, without obtaining Arm's prior written consent. -
Chapter 20: the Linux System
Chapter 20: The Linux System Operating System Concepts – 10th dition Silberschatz, Galvin and Gagne ©2018 Chapter 20: The Linux System Linux History Design Principles Kernel Modules Process Management Scheduling Memory Management File Systems Input and Output Interprocess Communication Network Structure Security Operating System Concepts – 10th dition 20!2 Silberschatz, Galvin and Gagne ©2018 Objectives To explore the history o# the UNIX operating system from hich Linux is derived and the principles upon which Linux’s design is based To examine the Linux process model and illustrate how Linux schedules processes and provides interprocess communication To look at memory management in Linux To explore how Linux implements file systems and manages I/O devices Operating System Concepts – 10th dition 20!" Silberschatz, Galvin and Gagne ©2018 History Linux is a modern, free operating system (ased on $NIX standards First developed as a small (ut sel#-contained kernel in -.91 by Linus Torvalds, with the major design goal o# UNIX compatibility, released as open source Its history has (een one o# collaboration by many users from all around the orld, corresponding almost exclusively over the Internet It has been designed to run efficiently and reliably on common PC hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can run much existing free UNIX soft are, resulting in an entire UNIX-compatible operating system free from proprietary code Linux system has -
FOR IMMEDIATE RELEASE August 18, 2015
FOR IMMEDIATE RELEASE August 18, 2015 MEDIA CONTACT Emily Kowalski | (919) 664-6795 | [email protected] North Carolina Museum of Art Presents M. C. Escher, Leonardo da Vinci Exhibitions and Related Events Raleigh, N.C.—The North Carolina Museum of Art (NCMA) presents two exhibitions opening in October 2015: The Worlds of M. C. Escher: Nature, Science, and Imagination and Leonardo da Vinci’s Codex Leicester and the Creative Mind. The Worlds of M. C. Escher features over 130 works (some never before exhibited) and will be the most comprehensive Escher exhibition ever presented in the United States. The Codex Leicester is a 500-year-old notebook handwritten and illustrated by inventor, scientist, and artist Leonardo da Vinci—the only manuscript by Leonardo in North America—that offers a glimpse into one of the greatest minds in history. “This is going to be an exciting fall at the Museum—an incredibly rare opportunity for our visitors to see not only centuries-old writings and sketches by Leonardo da Vinci, but also the work of M. C. Escher, another observer of nature and a perfect modern counterpart to Leonardo,” says NCMA Director Lawrence J. Wheeler. “These exhibitions will thrill art lovers and science lovers alike, and we hope that all visitors leave with a piqued curiosity, an ignited imagination, and a desire to more closely observe the world around them.” The Worlds of M. C. Escher: Nature, Science, and Imagination October 17, 2015−January 17, 2016 Comprising over 130 woodcuts, lithographs, wood engravings, and mezzotints, as well as numerous drawings, watercolors, wood blocks, and lithographic stones never before exhibited, The Worlds of M.