英语翻译LABORATORY ASSIGNMENTSIf you have access to the Internet

英语翻译
LABORATORY ASSIGNMENTS
If you have access to the Internet,use the tools you have available (perhaps Archie,Gopher,Netscape,Mosaic,or a WWW search engine) to search for information about GIS and for digital mao data on-line covering your town or city.Are there any attribute data for the maps,perhaps in gazetteers,almanacs,or data books?You may be able to get these from network services such as America Online or CompuServe.If you are not connected to the networks,visit a library and use their facilities,or book in the reference section fou information.If you live near a map library,perhaps at a university,see if you can use this facility in your search.After a few searches,make an inventory of data you were successful in locating,Put the inventoryin the form of a list.Add a column to show which agencies supplied the data you found and how recent the data were.How are the data made available to the public?
Using the information in this chapter,obtain as much information as possible about the GIS you are or will be using.When was the package creates?What is the package’s history?Who wrote the software?Are there manuals,research papers,or other sources of information,such as newsletters,user groups,or other maunals,relating to the software of which you are unware?
If you have access to the Internet,join GIS-L and retrieve the FAQ(frequently asked questions) list.How would you get answers to any questions you have at this stage that are not on the list?
Review the operating system of the computer on which you will work with GIS.Whether it be Unix,Windows,OS/2,DOS,or any other,what operations are necessary to create and delete files,create and delete directories,copy and move files,edit the contents of an ASC2 file,and to use peripheral devices such as CD-ROMdrives and plotters or digitizers?Become familiar with the systen’s manuals and/or on-line help facility.

地理信息系统,国际上称为GIS,即 Geograhpic Information system
如果你能使用互联网,尽可能的使用各种你能用到的搜索工具（例如 Archie,Gopher,Netscape,Mosaic,或其他网络搜索引擎）搜索有关GIS的信息；还有有关你所在这个城镇的更多的数字数据.哪里有有关于地图的资料数据呢?也许在地名词典,年鉴,或数据手册中有；你也可以从像 America Online 或 CompuServe这样的网络服务中获得资料.如果你不能上网,去图书馆,利用那儿的资源或检索书来获取你要的信息.如果你离一家地图图书馆很近,或许你在一所大学里,看看你能不能利用这些地方的资源来检索到你需要的.
在以上这些搜索工作完成后,就可以成功做一份此地区的资料清单了,把这些资料列在某种形式的表格中,并加一栏专门列出这些资料都是从哪里获得的,是什么时候的资料.
如何让这些数据变得对公众有用呢?以章的形式来组织这些数据,为现在及以后的工作获得尽可能多的GIS信息.什么时候做数据包?数据包包含多长的历史?谁来写软件?与软件相关的手册,研究论文,实事通讯,用户群这些信息我们有漏掉吗?
如果你能上网,进GIS-L看看FAQ（问与答）,看看大家都有什么样的问题,你能在你的系统中回答这些问题吗?
对你将运行GIS的电脑的系统再进行一下检查,看看Unix,Windows,OS/2,DOS等等这些系统那些有必要添加或删除文件,根目录,复制或移动文件,或有用ASC-2码编辑的文件,还有要用到的外围设备如光驱,数字绘图器或数字转换器?要变得对操作系统和在线帮助技巧越来越熟悉.