操作系統(tǒng)原理緒論(英文課件)-展示頁
2024-12-17 09:40本頁面
【正文】 on 1980 – present ? personal puters, handheld devices, sensors First Generation 1945 – 1955 ? OS: none (programs were entered by setting some switches) ? Computer designer is: builder, programmer, operator, and “sys admin” ? A physicist who wanted to calculate the trajectory of a missile would sign up for an hour on the puter in advance. ? When his time came, he would e into the room, feed in his program from punched cards or paper tape, watch the lights flash, maybe do a little debugging, get a printout, and leave. ENIAC (Electronic Numerical Integrator And Computer) ? It contained 17,468 vacuum tubes, weighed 30 short tons (27 t), and took up 680 square feet (63 m178。 it is responsible for the management and coordination of activities and the sharing of the limited resources of the puter. Computer System Components 1. Hardware – provides basic puting 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. Application programs– define the ways in which the system resources are used to solve the puting problems of the users (pilers, database systems, video games, business programs). 4. Users (people, machines, other puters) What is an Operating System? ? a program that acts as an intermediary between a user of a puter and the puter hardware. ? Operating system purpose: ? Provide an environment in which a user can execute programs. ? Operating system goals: ? Make the puter system convenient to use(Convenience). ? Use the puter hardware in an efficient manner(Efficiency). Definitions of an Operating System ? Resource allocator – manages and allocates resources. 管理和分配資源 ? Control program– controls the execution of user programs and operations of I/O devices . 控制用戶程序運行和 I/O設備的操作 ? Kernel – the one program running at all times (all else being application programs). 全時運行的一個程序 Our Traditional Definition A set of programs that control and manage puter hardware and software, and anize puter39。Principles of Operating System 操作系統(tǒng)原理 About This Course ? 課程基本情況 ? 課程類別：學科專業(yè)課必修課 ? 學時學分：總學時 64學時 實驗 8學時 4學分 ? 先修課程：數(shù)據(jù)結構、程序設計語言 ? 課程內(nèi)容 ? 主要講授操作系統(tǒng)基本原理， 即教材第 1章至第 13章 ? 成績評定方法 ? 期末考試成績占 70%，平時成績占 30% ? 平時成績包括：作業(yè)、實驗、課堂、考勤 Textbook amp。 References ? Abraham Silberschatz． Applied Operating System Concepts． Higher Education Press, 2022,5 ? 湯子瀛．計算機操作系統(tǒng)． 西安：西北電子科技大學出版社 , 1999,5 ? 胡志剛．計算機操作系統(tǒng)． 長沙：中南大學出版社 ,2022,8 ? 張堯?qū)W．計算機操作系統(tǒng)教程（第二版）． 北京：清華大學出版社 , 2022,8 Lecture Format ? Help you understand important and hard OS concepts ? Lectures do not cover everything ? Not all questions in homework or exams are from lectures ? Students responsibility ? Attend lectures ? Read textbooks ? Homework, Experiments, Exam ? Periodically check web page Overview(13) Mainly explain: ? What operating systems are? ? How operating systems are designed and constructed? ? What the mon features of an operating systems are? Process management(48) Mainly introduce methods for: ? Process scheduling ? Interprocess munication ? Process synchronization ? Deadlock handling ? Discussion of threads Storage ma
教學課件相關推薦
鄂ICP備17016276號-1