Overview of Functions of an Operating System Norman Matloff University of California‚ Davis ©2001‚ N. Matloff May 30‚ 2001 Contents 1 Introduction 1.1 It’s Just a Program! 1.2 What Is an OS for‚ Anyway? 1.3 A Bit More on System Calls 1.4 Making These Concepts Concrete: Commands You Can Try Yourself 2 System Bootup 3 Application Program Loading 4 Timesharing 4.1 Many Processes‚ Taking Turns 4.2 Example of OS Code: Linux for Intel CPUs 4.3
Premium Interrupt Computer program
A BRIEF HISTORY OF HCI 13.1 Early Interfaces Memex (1945) . Vannevar Bush‚ 1945 [Bush‚ 1945b]. . Memex = “memory extender”. . Hypothetical design (never built) based on microfilm technology and mechanical levers integrated into a large desk. . Vision of document repository with links between documents. . “Trails” = chained sequence of links. . Personal annotations. Memex Chronology . Bush started to formulate Memex ideas in 1932 [Nyce and Kahn‚ 1991‚ page 42]. . Draft sent to FORTUNE
Premium Graphical user interface
not a required part of an information system? A. People B. Procedures C. Internet D. Data 2. The physical equipment that processes data in order to create information is called the A. typology B. compiler C. hardware D. software 3. The word "software" is interchangeable with the word A. procedure B. application C. program D. computer 4. What are the two major software types? A. System analysis software and data warehousing software B. Operating system software and utilities
Premium Personal computer Computer Operating system
Operating Systems Q.1. Consider the following Snapshot of a System. Allocation Max Available A B C D A B C D A B C D P0 0 0 1 2 0 0 1 2 1 5 2 0 P1 1 0 0 0 1 7 5 0 P2 1 3 5 4 2 3 5 6 P3 0 6 3 2 0 6 5 2 P4 0 0 1 4 0 6 5 6 Use Banker’s algorithm. a) What is the content of matrix need ? b) Is the system in a safe state ? Implement Banker’s algorithm using a C program. Solution : /*-------------Banker’s
Premium
the need of Operating System in a Computer? Explain the facilities provided by an operating system to its users. Also explain the services that are offered by the Operating System Ans: An operating system is an essential software component of a computer system. The basic objectives of an operating system are to make the computer system convenient to use and to utilize computer hardware in an efficient manner. We can define an operating system as a large collection of software‚ which manages the resources
Premium Operating system Computer Computer program
Inventory System) Project Proponents Name: Ma. Kristine Jane D. Lamban - System Analyst Leary John H. Tambagahan - Lead Database Designer/ Programmer Ramy S. Hindap – Lead Interface Designer/Asst. Programmer Ma. Lucille A. Santillan - Lead Documenter/Researcher Sharmen Onido- Asst. Interface Designer/ Asst. Researcher Amie Tamboong - Asst. Documenter /Asst. Researcher Project Beneficiary Domingo’s Minimart in Centro Norte‚ Pandan‚ Antique. General Objectives This system aims
Premium Microsoft Office Project management User interface
The Chronicles of HSMCS (Holy Spirit of Mt. Carmel School) “Great things‚ start from small beginnings.” This is an old adage of many people based from their own experiences. And same as with our beloved school directress Mrs. Belen G. Erlandez‚ who has shown her full determination to established Mt. Carmel School. When classes opened on June‚1986‚ the pupils who enrolled were only 25 in the preparatory‚ where in Mrs.Erlandez started teaching as tutorial. The classes
Free High school Education Graduation
Week 1 Assignment 2 DQ1: This week we were introduced to the basic functions of our computers. The three things I learned are: 1. I’ve always known that our computers come preloaded with the operating system‚ although I didn’t know that the Microsoft applications I have on my computer are compatible on a MAC. For example‚ MS word‚ MS PowerPoint‚ and MS Excel. 2. One of the things I found important to share with others was the use of external storage devices. I learned the hard way my senior
Premium Microsoft Microsoft Office Computer virus
Introduction to Operating System:- Computer is a somewhat complex machine. The world has become accustomed to so many choices. One of the major choices in the modern era is the “Operating System (OS)”. Operating systems are the central software component to any computer. The main brands of operating system are; Windows Mac OS‚ Sun Solaris‚ UNIX‚ DOS and Linux. Each brand has its own take on what makes up an operating system. Windows is the most commonly used operating system around the world. The most
Premium Operating system Unix
A. Title: A Proposed Online Student Information System: Baliuag University-School of Information Technology Education (SITE) Department B. Proponents Leader: Irish Mae P. Santos Members: Melanie A. Lajom Bryan Allan Francisco Katherine Y. Simbulan I. Intoduction A. Background The development of the information communication superhighway has been a buzzword in all aspects of human endeavor be it globally or locally. To keep pace with the trends‚ the Philippines sees
Premium