南京师范大学泰州学院英文翻译原文
年级：2011级学号：12110330姓名：申佳佳
系部：信息工程学院
专业：通信工程
题目：基于C51的数字测速仪设计与仿真
指导教师：焦蓬蓬
2015年4月5日
Linux-Operating system of cybertimes
Though for a lot of people,regard Linux as the main operating system to make u p huge work station group,finish special effects of"Titanic"make,already can be r egarded as and show talent fully.But for Linux,this only numerous news one of.Rece ntly,the manufacturers concerned have announced that support the news of Linux to i ncrease day by day,users'enthusiasm to Linux runs high unprecedentedly too.Then, Linux only have operating system not free more than on earth on7year this piece wh at glamour,get the favors of such numerous important software and hardware manufa cturers as the masses of users and Orac le,Informix,HP,Sybase,Corel,Intel,Net scape,Dell,etc.,OK?
1.The background of Linux and characteristic
Linux is a kind of"free(Free)software":What is called free,mean users can o btain the procedure and source code freely,and can use them freely,including revise or copy etc..It is a result of cybertimes,numerous technical staff finish its research a nd development together through Inte rnet,countless user is it test and except fault,c an add user expansion function that oneself make conveniently to participate in.As th
e most outstanding one in free software,Linux has characteristic o
f the following:
(1)Totally follow POSLX standard,expand the network operating system of sup porting all AT&T and BSD Unix characteristic.Because of inheritting Unix outstandi ng design philosophy,and there are clean,stalwart,high-efficient and steady kernels, their all key codes are finished by Li nus Torvalds and other outstanding programmer s,without any Unix code of AT&T or Berkeley,so Linu x is not Unix,but Linux and Unix are totally compatible.(2)Real many tasks,multi-user's system,the built-in n etwork supports,can be with such seamless links as NetWare,Windows NT,OS/2, Unix,work in various kinds of Unix it tests to be fastest in comparing and ass ess efficiency.Support such many kinds of files systems as FAT16,FAT32,NTFS,E x t2FS,ISO9600,etc.at the same time.
(3)Can operate it in many kinds of hardwares platform,including such processo rs as Alpha,SunSparc,PowerPC,MIPS,etc.,to various kinds of new-type periphera l hardwares,can from distribute on global numerous programmer there getting suppor t rapidly too.
(4)To that the hardware requires lower,can obtain very good performance on mo re low-grade machine,what deserves particular mention is Linux outstanding stabilit y,permitted"year"count often its running times.
2.Main application of Linux At present,
Now,the application of Linux mainly includes:
(1)Internet/Intranet:This is one that Linux was used most at present,it can offer and
include Web server,all such Inter net services as Ftp server,Gopher server,SM TP/POP3mail server,Proxy/Cache server,DNS server,etc..Linux kernel supports I Palias,PPP and IPtunneling,these functions can be used for setting up fictitious host computer,fictitious service,VPN(fictitious special-purpose network),etc..Operatin g Apache Web server on Linux mainly,the occupation rate of market in1998is49%, far exceeds the sum of such several big companies as Microsoft,Netscape,etc..
(2)Because Linux has outstanding networking ability,it can be usedin calculati ng
distributedly large-scaly,for instance cartoon making,scientific caculation,data base and file server,etc..
(3)As realization that is can under low platform fullness of Unix that operate,ap ply at all levels teaching and research work of universities and colleges extensively,if Mexico government announce middle and primary schools in the whole country dispo se Linux and offer Internet service for student already.
(4)Tabletop and handling official business appliedly.Application number of peo ple of in this respect at present not so good as Windows of Microsoft far also,reason i ts lie in Lin ux quantity,desk-top of application software not so good as Windows ap plication far not merely,because the characteristic of the freedom software makes it n ot almost have advertisement that support(though the function of Star Office is not se
