Demand Paging (按需调页) Copy-on-Write (写时复制) Page Replacement (页面置换) Allocation of Frames Thrashing (抖动) Memory-Mapped Files Allocating Kernel Memory Other Issues Operating System Examples

1 Background and System Model 2 Deadlock Characterization Necessary Conditions Resource-Allocation Graph Methods for Handling Deadlocks 3 Deadlock Prevention (死锁预防) 4 Deadlock Avoidance (死锁避免) Safe State (安全状态) Resource-Allocation Graph Scheme Banker’s Algorithm (银行家算法) 5 Deadlock Detection (死锁检测) and Recovery

一、燃油简介 质量指标 (一)十六烷值 (二)密度 (三)粘度 (四)凝点、浊点、倾点 (五)机械杂质和水分 (六)热值 (七)闪点

Topics to be Discussed National Income Accounting and the Balance of Payments other concepts The determination of exchange rate floating exchange rate system Fixed exchange rate system Trade environment and policy o Summary of the open economy

• File systems overview • NFS & AFS (Andrew File System) • Google File System

• 3.1 What is a Process • 3.2 Process States • 3.3 Process Description • 3.4 Process Control • 3.5 Execution of the Operating System

• 1.0 Intro • 1.1 Basic Elements • 1.2 Processor Registers • 1.3 Instruction Execution • 1.4 Interrupts • 1.5 The Memory Hierarchy • 1.6 Cache Memory • 1.7 I/O Communication Techniques • 1.8 Evolution of Microprocessor

一、自主神经系统的功能 (Function of autonomic nervous system)又称植物神经系统或内脏神经系统

An LtI discrete-time- system is completely characterized in the time-domain by its impulse response {h[n]} We consider now the use of the DTFT and the z-transform in developing the transform- domain representations of an Lti system Copyright 2001, S. K. Mitra

6. Quality Assurance 6.1 Comprehensive QA system 6.1.1 The company must have a comprehensive system of quality assurance and monitoring, to ensure the consistent production of safe, legal product in compliance with the agreed specification