OPERATION SYSTEM

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operatingsystem简介

operatingsystem简介

操作系统(英语:Operating System,简称OS)是管理和控制计算机硬件与软件资源的计算机程序,是直接运行在“裸机”上的最基本的系统软件,任何其他软件都必须在操作系统的支持下才能运行操作系统是管理计算机硬件资源,控制其他程序运行并为用户提供交互操作界面的系统软件的集合。

操作系统是计算机系统的关键组成部分,负责管理与配置内存、决定系统资源供需的优先次序、控制输入与输出设备、操作网络与管理文件系统等基本任务操作系统的种类相当多,各种设备安装的操作系统可从简单到复杂,可分为智能卡操作系统、实时操作系统、传感器节点操作系统、嵌入式操作系统、个人计算机操作系统、多处理器操作系统、网络操作系统和大型机操作系统。

[1]按应用领域划分主要有三种:桌面操作系统、服务器操作系统和嵌入式操作系统。

一、桌面操作系统桌面操作系统主要用于个人计算机上。

个人计算机市场从硬件架构上来说主要分为两大阵营,PC机与Mac机,从软件上可主要分为两大类,分别为类Unix操作系统和Windows操作系统:1.Unix和类Unix操作系统:Mac OS X,Linux发行版(如Debian,Ubuntu,Linux Mint,openSUSE,Fedora等);2.微软公司Windows操作系统[2]:Windows 98,Windows XP,Windows Vista,Windows 7,Windows 8,Windows 8.1等。

二、服务器操作系统服务器操作系统一般指的是安装在大型计算机上的操作系统,比如Web服务器、应用服务器和数据库服务器等。

服务器操作系统主要集中在三大类:1.Unix系列:SUNSolaris,IBM-AIX,HP-UX,FreeBSD,OS X Server[3]等;2.Linux系列:Red Hat Linux,CentOS,Debian,Ubuntu Server等;3.Windows系列:Windows NT Server,Windows Server 2003,Windows Server2008,Windows Server 2008 R2等。

十个明确简答

十个明确简答

十个明确简答1.What is a computer?A computer is a device that can store, retrieve, and process data.2.What is the internet?The internet is a global network of interconnected computers, allowing users to access, exchange and share data.3.What is a computer virus?A computer virus is a malicious program designed to spread itself by copying itself to other computers or exploiting computer vulnerabilities.4.What is hardware?Hardware refers to the physical components of a computer system, including the processor, memory, power supply, motherboards and other components.5.What is software?Software is a set of instructions for a computer that can be used to perform specific tasks.6.What is a database?A database is a collection of data or information that is organized and stored so that it can be easily accessed and manipulated.7.What is system software?System software is a set of programs that control the operation of a computer and manage its resources.8.What is an operating system?An operating system is a set of software that manages the resources of a computer system, such as its memory and processor, and allows applications and users to interact with the computer.9.What is a program?A program is a set of instructions that a computer can execute to carry out specific tasks.10.What is a compiler?A compiler is a program that can convert a program written in a programming language into instructions that can be read and executed by a computer.。

IT专业英语词汇精选(T2)

IT专业英语词汇精选(T2)

IT专业英语词汇精选(T2)tlc task level controller 任务级别控制器tlc terminal link control 终端链路控制tlc threshold logic circuit 阈值逻辑电路.tlc swat的编译工具命令语言源码文件格式〖后缀〗tlct total life cycle time 生命周期总计时间tld threshold logic device 阈值逻辑设备tld top – level domain 顶级域名tle threshold logic element 阈值逻辑单元tle trunk line equipment 中继线设备tli transmission layer interface 传输层接口tli transport level interface 传送级接口〖unix〗tll television laser link 电视激光传送线路tlm telemeter 遥测装置tlm telemetry 遥测tlm time linearization method 时间线性化法tlm transmission line matrix 传输线路矩阵tlp transmission layer protocol 传输层协议tlp telephone line patch 电话线路修补tlp terminal link process 终端链路进程.tlp timeline的项目文件格式〖后缀〗tlr toll line release 长途线路释放tlrn time – lagged recurrent networktls transport layer security 传输层安全(1995年5月ietf推出的协议)tlt transportable link terminal 可运输的链路终端tlu table lookup 查找表tlu threshold logic unit 阈值逻辑单元.tlx 电传文件格式〖后缀〗tlxau telex access unit 电传接入部件tlz transfer on less than zero 小于零转移tm tape mark 磁带标记tm tape module 磁带模块tm teaching machine 教学机tm technical manual 技术手册tm technical memorandum 技术备忘录tm terminal management 终端管理tm terminal mobility 终端设备机动性(个人通信服务-pcs的三项功能之一)tm terminal monitoring 终端监视程序tm terminal multiplexers 终端多路复用器tm thematic mapper 主题映射程序tm time modulation 时间调制tm tone modulation 音调调制tm trade mark 商标tm traffic manager 传输量管理器tm transcription machine 录放机tm translation memory 翻译记忆(德国塔多斯机器翻译公司的核心技术)tm transverse magnetic field 横向磁场tm traymenu “桌面与资源管理专家” 〖软件名〗tm turing machine 图灵机(即不受存储容量限制的假想计算机)tm turkmenistan 土库曼斯坦(域名)tm-pdu test management pdu 测试管理-协议数据单元tma terminal movement area 终端活动区tmas transport maintenance & administration system 传送器维护管理系统tmc telecommunication maintenance center 远程通信维护中心tmc thinking machines corp. “思考机器”公司(美国,研制了大规模并行处理机,1994年破产)tmc transmission maintenance center 传输维护中心tmd telemetered data 遥测数据tmde test measurement and diagnostic equipment 测试的度量诊断设备tmds transmission minimized differential signaling 传输最小化差别信令(提供传输数字信号到显示器的技术)tmdt total mean down time 总平均关机时间tmf technology managers forum 技术经理论坛tmf through – mastergroup filter 经由主群滤波器tmf transmission monitoring facility 传输监控设备tmf trunk maintenance file 中继线维护文件.tmf wordperfect for win的标记公制字体文件格式〖后缀〗tmgb telecommunications main grounding busbar 远程通信主接地汇流排tmis technical maintenance information system 技术维护信息系统tmis technical meetings information service 技术会议信息服务处(美国)tmis television management information system 电视管理信息系统tmis transportation management information system 运输管理信息系统(中国铁道部的)tmm telex main memories 电传主存储器tmm transparent monitor mode 透明监视模式,直通监视模式tmn telecommunications management network 远程通信管理网络tmn telephony management network 电信管理网络tmn time management networking 时间管理联网tmo telegraphic money order 电汇汇单.tmo zortech c++的共用优化程序默认输出文件格式〖后缀〗tmp temporary 暂时tmp terminal monitor program 终端监视器程序.tmp 临时文件格式〖后缀〗tmr triple modular redundancy 三重模块冗余tmr trunked mobile radio 中继的移动无线通信tmrs traffic measuring and recording system 通信交往的测量和记录系统tms task management services 任务管理服务tms technical and management support 技术和管理支持tms technology management services 技术管理服务tms telecommunications management services 远程通信管理服务tms telecommunications message switch 远程通信报文转换tms telemetry modulation system 遥测调制系统tms telephony management system 电信管理系统tms test monitor system 测试监控系统tms testing method select 测试方法选择tms text management system 文本管理系统tms thesaurus management system 词表管理系统tms tight master – slave (synchronous system) 紧耦合主从同步系统tms time – multiplex switching 时间多路复用交换tms time – multiplexed switch 时间多工开关tms traffic measurement system 传输量测量系统tms transmission measurement set 电平表tms transportation management system 运输业管理系统tms truth maintenance system 真值维护系统.tms telemate的脚本文件格式〖后缀〗tmsf track, minute, second and frame 音轨、分钟、秒和帧〖cd播放器〗tmsi temporary mobile station identity 临时移动站标识tmtc thru – mode tape converter 通过式磁带转换器tmtc tri – model tape converter 三模型带转换器tmu transmission message unit 传输报文单元tn target network 目标网络tn task number 任务数tn telephone network 电话网tn telephone number 电话号码tn terminal node 终端节点tn transaction number 事物处理编号tn transport network 传送网络tn tunisia 突尼斯(域名)tn twisted nematic 扭曲向列相tnc terminal network controller 终端网络控制器tnc total numerical control 全部用数字表示的控制tnc track navigation computer 跟踪导航计算机tndf transnational data flows 跨国数据流tnds total network data system 全部网络数据系统tnef transport neutral encapsulation format 传送中性封装格式tnet (terminal and computer network) 终端与计算机网络tng tone generator 双音频发生器tni traffic noise index 通行噪音指数tni trusted network interpretation 可信网络翻译tnic telex network identification code 电传网络标识码tn-lcd twisted nematic – liquid crystal display 扭曲向列相液晶显示器tnrec tone receiver 双音频接收机tns temporal noise shaping 现时噪音整形技术〖mpeg〗tns tone sender 双音频发送器tns transparent network substrate 透明网络底层(奥瑞克公司的)tnt the news toolkit 新闻网工具包tnt total network tester 全网测试器tnv telecommunication network voltage circuit 电信网电压电路tnw tactical nuclear weapon 战术核武器tnz transfer on non – zero 非零转移to target option 目标选项to telegraph office 电报局to telegraph operator 电报员to telephone operator 话务员to time – out error 过时错误to tonga 汤加(域名)toa take off angle 发射角〖天线〗toa terminal operations activity 终端操作活动toa type of address 地址类型toc table of contents 内容表〖光盘〗toc technical operation center 技术操作中心toc television operating center 电视控制中心toc time out circuit 超时线路toc total ownership cost 总体拥有成本.toc 目录表文件格式〖后缀〗tocar task – oriented computer architecture 面向任务的计算机体系结构tocc technical operation control center 技术操作控制中心tocs terminal – oriented computer system 面向终端的计算机tod technical objective document 技术目标文档tod time of day 昼夜计时(即cpu使用的24小时制)todc time-of-day clock 昼夜时钟toe tape overlap emulator 磁带重叠仿真器toe total operating expense 总操作费用toes trade – off evaluation system 交替使用的鉴定系统tof time – of – filing 归档时间tof top – of – file 文件头,文件头标记符tol telephonic oriented language 面向电话使用的语言tol test – oriented language 面向测试的语言tol type of line 线路类型tolar terminal online availability reporting 终端在线可用性报告tolr toll restricted 限制长途呼叫tom technical operations manager 技术操作管理器tomb raider 《古墓丽影》〖游戏名〗ton type of number 编号类型tongfang 同方光驱·清华〖品牌〗tonics telephone operations network integration control system 电话操作网络综合控制系统too time of origin 起始时间top technical and office protocol 技术和办公室协议,top协议topas total outside plant administration system 全部车间外管理系统topms telemarketing operations performance management system 电话推销运行表现管理系统topp task oriented plant practice 面向任务的车间实践top tech thermal overheat protection technology 过热保护tops teletype optical projection system 电传光学投影系统tops thermoelectric outer planet spacecraft 热电外行星太空船tops time – sharing operating system 时间共享的操作系统tops total operation processing system 总操作处理系统tops trancendental operating system 先验性操作系统tor telegraph on radio 无线电报tor transmission over radio 无线传输tortos terminal oriented real time operating system 面向终端的实时操作系统tos tape operating system 磁带操作系统tos time ordered system 时间有序系统tos type of service 服务类型,业务类型.tos atari st的自提取存档文件格式〖后缀〗tosbac toshiba scientific and business automatic computer 东芝科学与商用自动计算机toshiba tokyo shibaura electric co. ltd. 东京芝蒲电气有限公司,东芝电气有限公司(日本)tosl terminal – oriented service language 面向终端的服务语言toss terminal – oriented support system 面向终端的支持系统tosnuc toshiba numeric control 东芝数字控制公司tot telephone organization of thailand 泰国电话组织tot time of transmission 传输时间tot total 全体,总数tot transfer of technology 技术转让tot transfer open time 传送开始时间tote teleprocessing on – line test executive 远程处理在线测试执行程序tp east timor 东帝汶(域名)tp tape terminal printer 磁带终端打印机tp teleprocessing 远程处理tp television program 电视节目tp tenting program 测试程序tp terminal processor 终端处理器tp terminal protocol 终端协议tp test position 测试位置tp time pulse 时钟脉冲tp top priority 最高优先级tp tracking program 跟踪程序tp traffic padding 通信量填充tp transaction processing 事务处理tp transparency 投影胶片tp twisted pair 双绞线〖网络〗.tp turbo pascal的配置文件格式〖后缀〗.tp turbo profiler的会话状态文件格式〖后缀〗.tp3 harvard graphics 3.0的模板文件格式〖后缀〗tpa tape pulse amplifier 磁带脉冲放大器tpa telematic protocol architecture 远程信息处理协议体系结构tpa transfer and propagation agent 传送与宣传代理tpa tunable parametric amplifier 可调参数放大器tpad teleprocessing analysis and design program 远程处理分析和设计程序tpad terminal packet assembler disassembler 终端分组汇编反汇编程序tpap transaction processing applications program 事物处理的处理应用程序.tpb hijaak的可下载pcl soft字体备份文件格式〖后缀〗tpc test pattern check 测试模式复选tpc time – to – pulse height converter 时间-脉冲振幅转换器tpc time polarity control 时间极性控制tpc transaction processing council 事物处理委员会tpc twisted – pair channel 双扭线通道tpc two – phase commit 二相提交,双相委托tpc typewriter and paper – tape control 打字机与纸带控制器tpc typewriter paper tape reader controller 打字机纸带阅读器控制器tpc-d transaction processing performance council benchmark d 事物处理处理性能委员会基准dtpci transport protocol control information 传送协议控制信息tpd time pulse decoder 时间脉冲解码器tpd time pulse distributor 时间脉冲分配器tpd total program diagnostic 总程序诊断tpd transient propagation delay 瞬态传播延时tpd trivial problem discriminator 琐碎问题鉴别器tpddi twisted pair distribution data interface 双绞线分布数据界面tpdu transfer protocol data unit 传送协议数据单元tpdu transport protocol data unit 传送协议数据单元tpf transaction processing facility 事物处理处理工具tpe test pattern evaluator 测试模式评定器tper teleprocessing error record 远程处理错误记录tpf theoretical peak fillrate 理论峰值填充率〖3d芯片〗.tpf hijaak的可下载pcl soft字体备份文件格式〖后缀〗tpg test pattern generator 测试模式发生器tpg timing pulse generator 定时脉冲发生器tpg total precedence grammar 总体优先语法.tph turbo pascal的帮助文件格式〖后缀〗tpi target position indicator 目标位置显示器tpi tracks per inch 每英寸磁轨数tpi transport provider interface 传送器接口tpis telecommunication products information retrieval and simulation 电信产品信息检索和模拟tpl table producing language 表生成语言tpl telecommunication –oriented programming language 面向远程通信的编程语言tpl telecommunication programming language 远程通信编程语言tpl terminal processing language 终端处理语言tpl terminal programming language 终端编程语言tpl test point logic 测试点逻辑tpl test procedure language 测试过程语言tpl test program language 测试程序语言tpl transmission protocol layer 传输协议层.tpl turbo pascal的常驻单元库文件格式〖后缀〗.tpl harvard graphics 2.0的模板文件格式〖后缀〗tplc test program and logic computer 测试程序与逻辑计算机tpm technical performance measurement 技术性能测量tpm telemetry processor module 遥测处理器模块tpm tracks per millimeter 每毫米磁轨数tpms transaction processing management system 事物处理处理管理系统tpn timed petri net 计时佩特里网tpn trading partners network 贸易伙伴网tpn trading process network 贸易过程网络tpon telephony over passive optical network 在无源光纤网上通电话.tpp borland pascal 7.0的受保护方式单元格式〖后缀〗单元tppc telecommunications public policy committee 远程通信公共政策委员会tppc transaction processing performance council 事务处理性能委员会(权威的计算机性能测试机构)tpr tape programmed raw data 磁带程控原始数据tpr teleprinter 电传打字机tpr telescopic photograph recorder 带望远镜头的录像机tps task parameter synthesizer 任务参数合成器tps terminals per station 每工作站终端数tps terminal polling system 终端轮询系统tps terminal programming system 终端编程系统tps thermal protection system 热防护系统tps timing pulse shaper 定时脉冲整形器tps transactions per second 每秒事务处理次数(用于服务器测试)tps transaction processing system 事物处理处理系统tpt propagation delay time 传播延时tpt temporary program table 临时程序表tpt train positioning tracking 火车定位跟踪tpt transport 输送,转移,传送tpt twisted pair transceiver 双绞线收发器tptc teleprocessing test center 远程处理测试中心tp-tcp iso transport service on top of the tcp 基于传输控制协议的国际标准化组织的传送服务〖因特网〗tpu terminal processing unit 终端处理单元.tpu turbo pascal的单元常数文件格式〖后缀〗.tpu vaxtpu editor命令文件格式〖后缀〗tpw theme park world 《主题公园世界》〖游戏名〗.tpw turbo profiler for windows的会话状态文件格式〖后缀〗.tpw turbo profiler for windows的单元常数文件格式〖后缀〗.tpz 由tar和gnuzip (.tar.gz) 生成的压缩存档文件格式〖后缀〗tqc total quality control 完全质量控制tqm total quality management 完全质量管理tr tape recorder 磁带记录器tr tape residence 磁带驻留tr technical reference 技术引用tr technical report 技术报告tr telegraph repeater 电报转发器tr tele – recording 电视屏幕录像tr telephone repeater 电话转发器tr terminal ready 终端就绪〖指示灯〗tr test report 实验报告tr test requirements 测试要求tr throughput ratio 吞吐量比率tr token – ring 令牌环tr track 磁道tr tracking radar 跟踪雷达tr traffic route 通信交往路由tr transient response 瞬态响应tr transmit and receiving 发射与接收tr transmitter – receiver 收发两用机tr transparent routing 透明路由选择tr trouble report 故障报告tr trunk relay 中继线中继tr trust relation 委托关系〖网络〗tr turkey 土耳其(域名).tr turbo debugger for dos的会话状态设置文件格式〖后缀〗.tr 适用于troff -man (cawf2.zip)的城域网网页输入文件格式〖后缀〗.tr2 turbo debugger for win32的会话状态设置文件格式〖后缀〗tra traffic – restart – allowed 允许通信交往重新开始trac text reckoning and compiling 电文的合计与编译trace tolls recording and computing equipment 长途电话纪录与计算设备trace transaction control and encoding 事物处理控制和编码tracis traffic records and criminal justice information system 交通记录与刑事审判信息系统tradacomm trading data communication 贸易数据通信tradex target resolution and discrimination experiment radar 分辨和识别目标的实验雷达tradic transistor digital computer 晶体管数字计算机tradic transistorized airborne digital computer 晶体管化的机载数字计算机trai telecom regulatory authority of india 印度电信管理局tram trademark reporting and monitoring 商标报告与监视tramps text information retrieval and management program system 文本信息检索和管理程序系统transac transistorized automatic computer 晶体管化自动计算机translang translator language 翻译程序语言trau transcode rate adapter unit 译码速率适配器单元trawl tape read and write library 带读写库trax (transaction processing system) 事物处理处理系统trc technology reports center 技术报告中心(英国)trc telegram retransmission center 电报重传中心trc television relay center 电视转播中心trc token ring connection 令牌环连接trc transmission and receive control equipment 播送与接收控制设备trc transmission and reception controller 传送与接收控制器trc transverse redundancy check 横向冗余复选trc trunk resource coordinator 中继线资源协调器.trc power ctrace的调试支持文件格式〖后缀〗trd token ring d 象征性环网d标准〖网络〗trdy transmit buffer ready 发送缓冲器就绪.tre pc-tools的目录树文件格式〖后缀〗trend 中凌电脑〖厂标〗trf tuned radio frequency 调谐射频trfa tuned radio – frequency amplifier 调谐射频放大器tri telemanagement resource international 远程管理国际资源trial technique for retrieving information from abstracts of literature 文献摘编信息检索技术trice transistorized real – time incremental computer 晶体管化实时增量计算机tridac three – dimensional analog computer 三维模拟计算机trident 泰鼎公司(中国台湾,出品显示器和音效芯片等)〖厂标〗trim tailored retrieval and information management 定做的检索和信息管理系统trimedia 三媒体处理器(ps公司1997年开发)〖品牌〗trinitron 特丽珑显象管,贵翔显示器(索尼公司研制)triplex 中国台湾启亨(出品显卡、声卡、56k调制解调器等)trl transistor resistor logic 晶体管电阻逻辑(电路)trm test request message 测试请求报文trm time ratio modulation 时间比率调制trm transmission resource managementtrm trunk memory 中继线存储器.trm windows 3.x的终端设置文件格式〖后缀〗trms technical requirements management system 技术要求管理系统trn terrestrial radio navigation 地面无线电导航trn token ring network 象征性环状网络.trn quattro的翻译支持文件格式〖后缀〗tropo (tropospheric scatter communications) 对流层散射通信tros transformer read – only store 变压器只读存储体trp television remote pickup 远距离电视摄像管trp transmission reference point 传输参考点trpb truncated reverse path broadcast 删节的反向路径广播trr trouble recorder 故障记录器trs telegram retransmission system 电报重传系统trs teleoperator retrieval system 远程操作员检索系统trs terrestrial radio system 陆地无线电通信系统trs texture rendering speed 纹理贴图速度〖显卡测试〗.trs micrografx的可执行文件格式〖后缀〗trsm token ring switching module 令牌环交换模块trt token rotation timer 令牌轮流定时器trtl transistor – resistor – transistor logic 晶体管-电阻-晶体管逻辑(电路)trtv transistorized television receiver 晶体管电视接收机trump teller register unit monitoring program 出纳寄存器监视程序trw traffic – restarted – waiting 等待通信交往重新开始.trw turbo debugger for windows的会话状态设置文件格式〖后缀〗ts tag switching 标记交换ts task switching 任务切换ts technique specifications 技术规范ts telecommunication service 远程通信服务ts telephone subscriber 电话用户ts televised speech 电视讲话ts temporary storage 暂存ts terminal series 终端系列ts terminal server 终端服务器ts terminal service 终端服务ts terminal station 终端站ts terminal strip 终端剥离ts test set 试验装置ts text segment 正文段ts the sims 《模拟人生》〖游戏名〗ts time sharing 时间分享,分时ts time slice 时间片断,时间分段ts time slot 时间空档,时隙ts time switch 时间开关ts time – space 时间空间ts timing selector 定时选择器ts timing sequence 定时顺序ts tracking system 跟踪系统ts transmission services 传输服务ts transient state 瞬态ts transport service 传送服务ts traveling software 移动软件公司(美国,出品离线阅读器、远程控制器等因特网工具)ts trunking system 干线系统ts tunneling server 隧道服务器ts-ansi (ansi committee for telecommunications standards) 美国国家标准学会远程通信标准委员会ts / dms time – shared / data management system 时间共享数据管理系统tsa target service agent 目标服务代理tsa technical support association 技术支持同盟tsa test signal analyzer 测试信号分析器tsa time slot access 时间空档接入tsa time – slot assignment 时间空档分配tsap transfer service access point 传送服务访问点〖osi〗tsap transport layer service access point 传送层服务接入点tsap transport service access point 传送服务接入点tsapi telephony services application programming interface 电话服务应用编程接口(网威公司针对局域网推出)tsapi telephone services application programming interface 电话业务应用编程接口tsap-id transfer service access point – identifier 传送服务访问点标识符tsar time sharing activating report system 分时启动报告系统tsb target specification block 目标说明块tsb technical system board 技术系统布告牌tsb terminal status block 终端状态块tsb time switch bus 时间开关总线tsbo timing signal bus out 定时信号输出总线tsbp time sharing business package 时间分享业务软件包tsc tagram system corp. 标记内存系统公司(美国,电脑主机)tsc tally systems corp. 记录系统公司(美国,出品网管工具)tsc time – assigned synchronous composite 时间指派的同步合成tsc time – sharing control 时间分享控制tsc time sharing control task 时间分享控制任务tsc transit switching center 中转交换中心tsc transmitter start code 发送器起始代码tsc trunking system controller 中继线系统控制器tsc two subcarrier system 两个副载波系统〖彩电〗tscc telemetry standards coordination committee 遥测标准协调委员会tsds time – sharing diagnostic supervisor 时间分享诊断管理程序tsdu transport service data unit 传送业务数据单元tse test support equipment 测试支持设备tse time slice end 时间分段结束tses time sharing executive system 时间分享执行系统tses transportable satellite earth station 移动式卫星地面站tsf through supergroup filter 经由超群滤波器tsfs trunk servicing forecasting system 中继线维修预测系统tsg telegraph signal generator 电报信号发生器tsg test signal generator 测试信号发生器tsg time slot generator 时间空档发生器tsh technical support hotline 技术支持热线tsi task status index 任务状态索引tsi time – slot interchange 时间空档互换tsi total system intervention 全系统干预tsi transmitting subscriber identification 发送用户识别tsl three – state logic 三态逻辑tsl time series language 时间序列语言tsl tree searching language 树搜索语言tsl tri – state logic 三态逻辑(电路)tsl trouble – shooting loop 故障查找环路tslt transportable satellite communications link terminal 可运输的无线通信链路终端tsm time sharing multiplex 时间分享多路传输,时分多工tsm time stage memory 时间阶段存储器tsm total storage management 总存储管理tsm tree storage management 子目录存储管理tsmc Chinese Taiwan semiconductor manufacturing co. 中国台湾半导体制造公司(世界最大的半导体厂商)tsn task sequence number 任务序号tso technical standard order 标准技术规范tso time sharing operation 时间分享操作,分时操作tso time sharing option 时间分享选项,可选分时软件包〖mvs〗tsos time sharing operating system 时间分享操作系统,分时操作系统tsp tabloid – size printer 大幅面打印机tsp telephony api service provider 电话应用编程接口服务提供商tspl telephone systems programming language 电话系统编程语言tsps time sharing programming system 时间分享编程系统,分时编程系统tsr technical support center (ibm中国)技术支持中心tsr terminate – and – stay – resident 终止驻留程序,内存驻留程序tsr track specification record 磁轨规格记录tsr transfer service redirect 传送服务重新定tsr transparent static routing 透明静止路由选择tss task selecting strand 任务选择串tss telecommunication standardization sector 电信标准部门tss telecommunications switching system 电信交换系统tss teletype switching system 电传机转换系统tss terminal security system 终端安全系统tss time – sharing service 时间分享服务,分时服务tss time – sharing system 时间分享系统,(ibm360)分时系统tss toll switching system 长途交换系统tss transaction security system 交易安全系统tss transportation support system 运输业支持系统tss tributary status slot 从属状态存储槽tss trunk servicing system 中继线维修系统tss trunk and signaling subsystem 中继线和信令子系统tssc touchstone software corp. “试金石”软件公司(美国,出品反病毒工具)tst time sharing terminal 时间分享终端,分时终端tst time – space – time 时间-空间-时间.tst wordperfect for win的打印机测试文件格式〖后缀〗tsts transparent spanning tree schema 透明生成树状轮廓图tsw tele software 电信软件tsw trouble – shooting wizards 疑难解答向导tsx time sharing executive 时间分享执行程序tt telephoned telegraph 电话电报tt teletext 图文电视tt teletype 电传打字机tt toll ticket 长途电话单tt tracking telescope 跟踪望远镜tt transaction terminal 事物处理终端tt trinidad & tobago 特立尼达和多巴哥(域名)tt-fr tunable transmitter, fixed receiver 可调发射机,固定接收机tta test target array 测试目标阵列tta theatre television authority 电视剧场ttbomk to the best of my knowledge 就我所知〖网语〗ttc table top computer 桌上计算机,台式计算机ttc telemetry tracking and command 遥测跟踪和指令ttc telephone toll call 长途电话呼叫ttc terminating toll center 终端长途电话局ttc&m tracking, telemetry, control, and monitoring 跟踪、遥测、控制和监视ttcn tree and tabular combined notation 树状图与表格相结合的注释ttd temporary text delay 文本暂时延迟符ttdl terminal transparent display language 终端清晰显示语言ttdr tracking telemetry data receiver 跟踪遥测数据接收机tte telecommunication terminal equipment 远程通信终端设备ttf transport terminal function 传送终端功能.ttf true type 字体文件格式〖后缀〗ttfn ta – ta for now 多谢多谢〖网语〗ttis toll transit and incoming switch 长途中转和入局开关ttk toyo tsushinki kaisha 东洋通信机械公司ttl terminating test line 终端测试线路ttl time to live (信息包)生存时间〖因特网〗ttl toll terminal loss 长途电话终端损耗ttl transistor – transistor logic 晶体管晶体管逻辑(电路)ttm two – tone modulation 双音频(信号)调制ttos toll transit and outgoing switch 长途中转和出局开关ttp teller transaction processor 柜员交易处理程序〖p+〗ttp telnet terminal protocol 远程注册终端协议ttp timed token passing 计时标记通过ttp timed token protocol 定时令牌协议ttr target tracking radar 目标跟踪雷达ttr teletype translator 电传打字机译码器ttr touch tone registration 按钮式音频注册登记ttrt target token rotation timer 目标令牌循环定时器tts tank thermal sight 坦克热成像瞄准镜tts target tracking system 目标跟踪系统tts teletype setting (-er) 电传打字机定位(器)tts television training system 电视训练系统tts text to speech 文本语音转换技术,全程化语音技术tts transaction tracking system 事务处理跟踪系统tts transmission test set 传输测试装置tts transmission testing device 传输测试设备ttts toll trunk transit switch 长途中继线中转开关ttu teletype terminal unit 电传终端设备ttu terminal timing unit 终端定时器ttul talk to you later 以后再谈〖网语〗ttx teletex 智能用户电报tty teletypewriter 电传打字机tu tape unit 带装置tu terminal unit 终端装置tu tilt up 仰摄tu timing unit 定时器tu transmission unit 传输设备tu tributary unit 附属单元tua telecommunications users’ association远程通信用户协会tuba tcp and udp with bigger addresses 具有较长地址的传输控制协议和用户数据报协议tubi tape unit bus in 磁带机输入总线tubo tape unit bus out 磁带机输出总线tuf telecommunications users’ foundation电信用户基金会(英国)tug tributary unit group 附属单元组tulip tcp and udp over light weight ip 因特网少量目录访问协议上的传输控制协议和用户数据电报协议tulip 郁金香电脑(欧洲,荷兰)〖品牌〗〖厂标〗tunip tcp and udp over nonexistent ip 因特网不存在目录访问协议上的传输控制协议和用户数据电报协议tur traffic usage recorder 通信交往用法记录器.tut 教程文件格式〖后缀〗tuv 德国技术监督协会tuvm turbo universal voice module “涡轮”通用语音模块tuwds international ursigram and world days service 国际无线电科学协会广播节目和世界日业务tv television 电视tv television vision channel 电视图像信道tv throughput with voice 带语音的吞吐量tv transfer vector 转移向量tv threshold value 阈值tv tree view 树形视图tv tuvalu 图瓦鲁(域名).tv paradox的表格视野设置文件格式〖后缀〗.tv1 wordperfect for win的doc 1高于插入点溢出文件格式〖后缀〗.tv2 wordperfect for win的doc 2高于插入点溢出文件格式〖后缀〗.tv3 wordperfect for win的doc 3高于插入点溢出文件格式〖后缀〗.tv4 wordperfect for win的doc 4高于插入点溢出文件格式〖后缀〗.tv5 wordperfect for win的doc 5高于插入点溢出文件格式〖后缀〗.tv6 wordperfect for win的doc 6高于插入点溢出文件格式〖后缀〗.tv7 wordperfect for win的doc 7高于插入点溢出文件格式〖后缀〗.tv8 wordperfect for win的doc 8高于插入点溢出文件格式〖后缀〗.tv9 wordperfect for win的doc 9高于插入点溢出文件格式〖后缀〗tva television audio 电视音频tva / cue television audio / cue 电视伴音 / 字幕tvb transmit control block 传送控制块tv-bm tv – based multimedia 基于电视的多媒体,多媒体电视tvbs tv broadcast by satellite 卫星电视广播tvc television camera 电视摄像机.tvf dbase的表格视图设置文件格式〖后缀〗tvg time variation of gain 增益的时变tvi television interference 电视干扰tvi transient voltage indicator 瞬时电压指示器tvig television inertial guidance 电视惯性制导tvist television information storage tube 电视信息存储管tvm television monitor 电视监视器tvn transcend virtual networking 超常虚拟联网tvo total value of ownership 拥有电脑的总价值t-vod true video – on – demand 纯粹视频点播tvr television recording 电视录像技术tvr temperature variation of resistance 阻温度变化tvro television receive only 只接收电视〖卫星天线〗tvs telemetry video spectrum 遥测视频频谱tvs television shopping 电视购物tvs television viewing system 电视观看系统tvs triangular voltage sweep 三角形电压扫描tvsc television sound channel 电视伴音通道tvsg television signal generator 电视信号发生器tvspg television synthetic pattern generator 电视合成图案发生器tvsw television switch 电视开关tvt television teletypewriter 电视电传机tvt television translator 电视翻译器,电视转发器tvt television typewriter 电视打字机tvt the virtual tourist 虚拟游客tvtuner tv tuner 电视调谐器tw Chinese Taiwan 中国台湾省(域名)tw teleworking 家庭办公tw terminal line word 终端线路字tw traveling – wave 行波tw twin wire 双芯引线,双芯电缆twa transient working area 过渡工作区,临时工作区twa traveling – wave amplifier 行波放大器twain technology without an interesting name 无名技术(为应用软件和图像捕获之间的接口标准)twb two way beeping 双向寻呼twc three – way calling 三方呼叫twc two way channel 双向信道twdt temporary word descriptor table 暂时字描述符twg team ware group 组件集团公司(美国,出品电子邮件客户软件)twi time warner inc. 时代华纳公司(世界最大传媒集团,2000年1月10日被美国在线公司并购)twinhead 伦飞电脑〖厂标〗见:tctwinpro “双高能”系列显卡(生产商:omni )〖品牌〗twk traveling wave klystron 行波速调管two traveling wave oscillator 行波振荡器two traveling wave oscillograph 行波示波器。

operatingsystem

operatingsystem

operatingsystemOperating System: A Comprehensive OverviewIntroductionAn operating system is a crucial software component that manages computer hardware and software resources, allowing users and other software programs to interact with the computer system. In this document, we will explore the essential aspects of operating systems, including their definition, functions, types, and examples. Furthermore, we will delve into the key components and features of an operating system, shedding light on its significant role in managing computer systems efficiently.Definition of an Operating SystemAn operating system (OS) can be defined as a software program that acts as an intermediary between the user and computer hardware. It provides an interface for users to interact with computer resources such as the Central Processing Unit (CPU), memory, storage, and input/output devices. Additionally, the OS ensures the execution of software programs by managing system resources effectively.Functions of an Operating SystemThe primary functions of an operating system can be categorized into the following:1. Process management: The OS manages and allocates system resources, including CPU time, memory, andinput/output devices, to different processes running concurrently. It ensures fair distribution of resources and prevents processes from interfering with each other.2. Memory management: The OS manages the system's memory, allocating and deallocating memory space to different processes as needed. It keeps track of available memory and prevents processes from exceeding their allocated memory limits.3. File system management: An operating system manages the storage and retrieval of files on secondary storage devices, such as hard disks. It provides a hierarchical structure for organizing files and ensures secure and efficient data access.4. Device management: The OS manages input/output devices such as keyboards, monitors, printers, and networkdevices. It facilitates communication between the user or applications and these devices.Types of Operating SystemsOperating systems can be broadly classified into the following categories:1. Batch operating systems: These operating systems are designed to execute a series of jobs in batch mode, without any user interaction. They process jobs one after another, optimizing resource utilization and overall system efficiency.2. Time-sharing operating systems: Time-sharing operating systems allow multiple users to simultaneously access and utilize the system resources. These systems divide the CPU time into small time intervals, enabling each user to perform tasks efficiently.3. Real-time operating systems: Real-time operating systems are used in applications that require precise and predictable system response times. They are commonly used in critical systems like aerospace, medical devices, and industrial control systems.4. Network operating systems: Network operating systems are designed for managing and coordinating multiple computers within a network. They provide mechanisms for file sharing, resource sharing, and communication between computers.Features of an Operating SystemSome prominent features of an operating system include:1. Multiuser support: Operating systems allow multiple users to access and utilize the system resources simultaneously, ensuring efficient resource allocation.2. Multitasking: Operating systems support running multiple tasks (processes/programs) concurrently, allowing users to switch between different applications seamlessly.3. Virtual memory: Operating systems provide virtual memory management, allowing the execution of processes that are larger than the available physical memory.Operating System ExamplesHere are a few examples of popular operating systems:1. Microsoft Windows: Windows is a family of operating systems developed by Microsoft Corporation. It is widely used in personal computers, laptops, and servers.2. macOS: macOS is the operating system used in Apple's Macintosh computers, providing a user-friendly interface and a range of software tools.3. Linux: Linux is an open-source operating system that is widely used in servers, embedded systems, and mobile devices. It offers high flexibility and customizability.4. Android: Android is a mobile operating system developed by Google. It is primarily used in smartphones and tablets, providing a rich user experience and a wide range of applications.ConclusionOperating systems are an integral part of computer systems, providing a crucial interface between users and hardware resources. They enable efficient resource management, process execution, and data storage. Understanding the fundamental concepts and functions of operating systems isessential for both users and software developers, as it helps optimize system performance and achieve desired results.。

经济学operational system的文章

经济学operational system的文章

经济学operational system的文章
经济学中的operationsystem是指一套有机的经济活动管理系统,它是保证经济体系运转的关键因素之一。

operation system的
核心是一系列互相关联、相互作用的机制和规则,能够调节各种经济行为,保证经济活动的有序进行。

operation system的主要功能包括:资源配置、市场调节、生
产计划和效率管理等。

这些功能直接影响着经济的效益和社会的福利。

在不同的经济体系中,operation system的实现方式各有不同。

例如,市场经济体系中,operation system主要依靠市场机制来调
节经济行为;而在计划经济体系中,operation system则主要由政
府计划机构来管理。

然而,在实践中,不同的operation system实现方式也会面临
各种挑战和问题。

例如,在市场经济中,存在信息不对称、市场垄断等问题;而在计划经济中,则可能存在资源浪费、效率低下等问题。

因此,建立一套有效的operation system,是保障经济稳定和
可持续发展的必要条件之一。

经济学家们应该不断地探索、改进operation system,以适应不断变化的经济环境和需求。

- 1 -。

港口英文词汇及缩略语

港口英文词汇及缩略语

港口英文及缩略语港口(Port Harbor)码头(Terminal)船舶(ship)铁路(Railway)泊位(berth)航空(Aviation)控制室(Control Tower, CT)闸口(Gate House, GH)集装箱堆场(Container Yard, CY)集装箱运输(container transportation, CT)集装箱多式联运(Multimodal Transport)集装箱货运站(container freight station, CFS)集装箱码头企业(Container Terminal Enterprise)海侧操作系统(Seaside Operation System, SOS)堆场操作系统(Yard Operation System, YOS)陆侧操作系统(Landside Operation System, LOS)地面水平运输系统(Ground Vehicle Operation System, GVOS)水上运输系统(Water Transport System, WTS)码头物流系统(Terminal Operation System, TOS)陆上运输系统(Land Transport System, LTS)内部水平运输(Inside Ground Vehicle Operation, IGVO)外部水平运输(Outside Ground Vehicle Operation, OGVO)岸壁(Quay)岸桥(Quay Crane, QC/STS)码头前沿(Apron)深圳蛇口SCT码头德国汉堡港CTA(Container Terminal Altenwerder)自动化码头上海外高桥二期码头泰国林查班马士基APMT码头鹿特丹ECT DELT码头鹿特丹港Euromax 中国青岛QQCT 上海洋山四期:SDCT全自动化码头无线终端(Radio Data Transport, RDT)堆场管理实时控制(Real-Time Control, RTC)场箱位(Slot)箱区号(Yard Code, YC)场箱位号(Yard Location Code, YLC)闭路电视(CCTV)地磅(Truck Scale)箱号OCR自动识别系统无线对讲机(VHF)维修车间(Workshop)行政办公大楼(Administration Hall)物流装卸设备(Container Handling Equipment, CHE)岸边装卸机械(Ship to Shore Crane, SSC)水平运输机(Internal Horizontal Vehicle, IHV)场地装卸机械(Yard Handling Crane, YHC)超长:Over Length(O/L) 超宽:Over Width(O/W)超高:Over High(O/H)箱型种类(Container Type)船舶预计到港时间(Estimated Time of Arrival, ETA)到港船型(Ship Size)全集装箱船(Full Container Ship)干线(Main Service)小型支线(Feeder/Barge Service)微观效益(Microcosmic Benefit)宏观效益(Microscopical Benefit)泊位利用率(Berth Utilization Ratio)吞吐能力(Throughput Capacity)船舶利用率(Vessel Utilization Ratio)库场利用率(CY&CFS Utilization Ratio)振华重工集团(ZPMC)国际贸易(International Trade)对外贸易(Foreign Trade)商品进口(Import)商品出口(Export)贸易术语(Trade Terms)责任、费用与风险(Responsibilities , Costs, Risks)4个组别:E组:指卖方在自己的地点将货物交给买方。

operating system名词解释(一)

operating system名词解释(一)

operating system名词解释(一)操作系统(Operating System)操作系统是计算机硬件和软件之间的中间层,它负责管理计算机的资源,并为其他应用提供服务,如文件管理、进程调度和内存管理等。

下面是一些与操作系统相关的名词及其解释。

1. 内核(Kernel)操作系统的内核是操作系统的核心部分,它负责管理计算机的硬件资源,并提供最基本的功能。

内核控制硬件设备的访问、调度进程和分配内存等。

例如,Linux操作系统的内核是由Linus Torvalds开发的,它是开源的,被广泛用于各种设备上。

2. 进程(Process)进程是计算机中正在运行的程序的实例。

每个进程都有自己的内存空间和执行环境,可以独立地运行和管理资源。

操作系统负责调度进程,并为它们分配所需的资源。

例如,当你打开一个应用程序时,操作系统将创建一个新的进程来运行该应用程序。

3. 线程(Thread)线程是进程中的执行单元。

一个进程可以包含多个线程,它们共享相同的内存空间和其他资源。

线程可以并发地执行任务,提高程序的性能和响应性。

操作系统负责调度线程,并为它们分配处理器时间。

例如,当你在浏览器中同时打开多个标签页时,每个标签页通常都由一个独立的线程来处理。

4. 文件系统(File System)文件系统是操作系统用于管理文件的一种机制。

它提供了对文件的组织、存储和访问的方式。

文件系统可以将文件存储在硬盘、固态硬盘或其他存储介质上。

操作系统负责文件的创建、删除、读取和写入等操作。

例如,Windows操作系统使用NTFS文件系统来管理硬盘上的文件。

5. 虚拟内存(Virtual Memory)虚拟内存是一种将硬盘空间用作扩展内存的技术。

它使得操作系统可以将部分数据存储在硬盘上,以释放主存(RAM)中的空间。

当程序需要访问被换出到硬盘上的数据时,操作系统会将其重新加载到主存中。

虚拟内存可以提高系统的性能和稳定性。

例如,Mac操作系统使用虚拟内存来管理系统的内存资源。

operating system操作系统-ch01-introduction-44

operating system操作系统-ch01-introduction-44
operating system操作系统-ch01-introduction-44
1.2
1.3
1.4
Chapter Objectives
To provide a grand tour of the major operating systems components To provide coverage of basic computer system organization
1.9
Four Components of a Computer System
1.10
Roles: Two views of Operating System
User view
ease of use/ performance/ resource utilization
System view
OS is a resource allocator Manages all resources Decides between conflicting requests for efficient and fair resource use
Our definition: Software sets:
Resource management; Control programs; Convenient to users;
1.12
1.2 Computer System Organization
Basic Organization One or more CPUs, device controllers connect through common bus providing access to shared memory Concurrent execution of CPUs and devices competing for memory cycles
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1单选15个
2填空20个
2.1操作系统的类型1.批处理操作系统2.分时操作系统
3.实时操作系统
4.嵌入式操作
系统5.网络操作系统6个人计算机操作系统7.分布式操作系统8.智能卡操作系统
实现哪些功能:1.进程管理2.存储管理3.文件管理4.作业管理5.设备管理
2.2计算机系统有哪几种资源
2.3作业有哪几种类型1.管理方式:(1).批量型(2)终端型2.控制方式:(1)脱机
作业(2)联机作业
2.4操作系统中分时系统的特点:1.同时性2.独立性
3.及时性
4.交互性
2.5进程有多少种状态:1. 就绪状态(ready)2.执行状态(executive)
3.阻塞状态(block)
2.6进程调度有多少种算法:1.最高优先级优先(HPF)调度算法2.轮转法(round robin)
2.7存储管理有多少种功能:1.合理的分配内存2.对内存中的信息进行保护
3.完成从
虚地址到实地址的转换4.进行内存的扩充
2.8虚拟存储器四大特征:1.虚拟扩充,即不是物理上而是逻辑上扩充了内存容量2.
部分装入,即每个作业不是一次性的装入内存,而是一部分装入内存3.离散分配,
即不必占用连续的内存空间,而是“见缝插针”4.多次对换,即所需的全部程序
和数据要分成多次调入内存。

2.9设备有哪些类型1.安所属关系分类:系统设备、用户设备2.从资源管理的角度分
类:独享设备、共享设备、虚拟设备3.按性质分类:存储设备、输入输出设备
2.10设备中CPU交换IO有四个阶段???(控制方式):1.监视所有设备的状态,是
设备控制块之类的数据结构同每个设备相关联。

每个设备都有一个设备处理程
序,按用户的要求控制设备工作,完成用户希望的操作。

2.由于进程数目多于I/O
设备数目,会产生对设备这种资源的竞争,设备管理应该决定谁取得一台设备、
取得多长时间以及何时取得。

有3种实现设备管理策略的基本技术,它们是独占、
共享和虚拟3进行设备分配,把一台设备物理地址分配给进程,且分配相应的控
制器和通道,以便顺利的进行信息传输。

4解除分配
2.11文件物理结构有哪三种1.连续区分配—连续文件2.非连续文件
3.散列组织—哈希
(Hash)文件
3判断
4概念
4.1.1.1操作系统:是计算机系统中的一个系统软件,它既是计算机系统资源
的管理员,又是计算机系统用户的服务员。

4.1.1.2进程:是一个具有一定独立功能的程序,在一个数据集合上的一次动
态执行过程。

4.1.1.3页表:是在内存中为每个作业开辟一块特定区域,建立起作业的逻辑
页与存储块之间的对应关系,这种表称为页面映像表,简称页表。

4.1.1.4虚拟存储器:是把程序当前执行所涉及的信息放入内存中,其余部分
可根据需要临时调入,由操作系统和硬件相配合来完成主存和辅存之
间信息的动态调度。

这样的计算机系统好像为用户提供了一个存储容
量比实际主存大得多的存储器。

a、局部性,部分作业进内存就可以
运行;b、交换性,当程序作业所需要不在内存后,可以请求交换,当
缺页的时候要调页;c、虚拟性;d、它所占用的空间是外存的空间,
实现的物质基础是大容量的为存储器。

4.1.1.5SPOOLing技术:SPOOLing为外围设备同时联机操作,它的基本思想
是主机从磁盘选取作业运行,结果也存在磁盘中。

相应的通道则负责
磁盘与慢速外设的传输。

利用通道和中断机制,作业的输入输出与作
业在处理机上的运行可很好并行起来。

4.1.1.6多道程序设计:是内存中同时存放几道作业,它们轮流交替在处理机
上运行。

4.1.1.7互斥:是进程间因相互竞争使用独占型资源(互斥资源)所产生的制
约关系。

4.1.1.8抖动:如果置换算法选择不当,有可能产生从主存中刚刚移走的某一
页马上又要被访问(即又需要调入),这样,主存和外存之间频繁地来
回移动页面的现象称为“抖动”现象。

4.1.1.9设备独立性:也叫设备无关性。

为了方便用户使用设备,用户在程序
中使用逻辑设备名,使用户程序与所使用的物理设备无关。

系统中必
须有一张联系逻辑设备名称和物理设备名称的映像表,即进程连接表。

4.1.1.10文件系统:是操作系统中负责管理文件的机构(一组软件和数据)。


负责为用户建立、撤销、读写、修改和复制文件,还负责完成对文件
的按名存取和进行存取控制以及负责管理文件所使用的资源。

5大题
5.1.1.1互斥、同步的实现
5.1.1.2确定互斥或同步的关系
5.1.1.3分别写两个进程没关系时(第三章)
P
5.1.1.4作业平均周转时间(第二章))
(
42
作业的平均周转时间=周转时间之和/n
即:作业的平均周转时间=(60+120+70)/3=83.3min
P
5.1.1.5计算题(第四章))
132
(
(1)
2KB=2048B
320/2048=0所以页号是0 对应的块号是6
所以320对应的绝对地址是6*2048+320=12608
2345/2048=1所以页号是1 对应的块号是7
所以2345对应的绝对地址是7*2048+2345=16681
5374/2048=2所以页号是2 对应的块号是3
所以5374对应的绝对地址是3*2048+5374=11518
(3)
1MB=1024*1024=220B所以主存地址使用20位来表示
1MB=1024KB 1024/256=4KB 作业每一页的长度为4KB
0页号对应的起始地址是3*4*1024=12288
1号对应的起始地址是5*4*1024=20480
2页号对应的起始地址是8*4*1024=32768
3页号对应的起始地址是2*4*1024=8192写成08192
(4)
FIFO置换算法

访问次序1 2 3 4 5 6 7 8 9 10 11
页面踪迹1 2 4 7 4 2 3 5 1 7 6
1 2 4 7 7 7 3 5 1 1 6
1 2 4 4 4 7 3 5 5 1
1 2 2 2 4 7 3 3 5
1 1 1
2 4 7 7 3
√√√√√√√√缺页次数为3次
LRU置换算法
访问次序1 2 3 4 5 6 7 8 9 10 11
页面踪迹1 2 4 7 4 2 3 5 1 7 6
1 2 4 7 4 2 3 5 1 7 6
1 2 4 7 4 2 3 5 1 7
1 2 2 7 4 2 3 5 1
1 1 1 7 4
2
3 5
√√√√√√√√√缺页次数是2次
P
5.1.1.6磁道的(第五章))
165
(。

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