Optimizing stateless servers Consider a connectionless server for file Table of information about files clients are using We find hash(IP addr, port) Overhead of opening and closing file each Buffer for file x

·第一节管理、信息和系统 ·第二节管理信息系统的概念、组成与功能 ·第三节管理信息系统的结构 ·第四节信息技术在旅游业中的应用

I. Pre-reading Task II. Related Information III. Detailed Study IV. Outline& Summary V. Home Assignment

I. Pre-reading Task II. Related Information III. Detailed Study IV. Outline& Summary V. Home Assignment

Unit Seven Text A I. Pre-reading Task II. Related Information Ill. Detailed Study I V. Outline& Summary V. Home Assignment

Text B Sounds we cannot Hear Text-related information Pre-reading task Detailed study of the text Summary and outline Home assignment

text A The Bermuda Triangle Text-related information Pre-reading questions Detailed study of the text Summary and outline Home assignment

Text A A Look at Tomorrow Text- related information Pre-reading tasks Detailed study of the text Outline and summary Home assignment

Unit Two Text A l. Pre-reading Task ll. Related\\ Information lll. Outline& Summary IV. Detailed Study V. Home Assignment

PR aims at winning public confidence and goodwill, giving a business or other ganization information, telling the pubic about a companys activities, plans or ideas and being on good terms with the public. It requires thoughtfulness about others beliefs