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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=gb2312"> <META NAME="GENERATOR" CONTENT="ZH-SGML-Tools 1.0.9"> <TITLE> Linux 的 Database-SQL-RDBMS HOW-TO 文件 (PostgreSQL 物件关联资料库系统): 只使用一个显示器 (monitor) 来建立多台 PostgreSQL 电脑</TITLE> <LINK HREF="PostgreSQL-HOWTO-14.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-14.html" REL=next> <LINK HREF="PostgreSQL-HOWTO-12.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-12.html" REL=previous> <LINK HREF="PostgreSQL-HOWTO.html#toc13" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO.html#toc13" REL=contents><SCRIPT src="menu.js"> function BeginPage() {} function EndPage() {} </SCRIPT> </HEAD> <BODY bgcolor=#FFFFFF MARGINHEIGHT=0 MARGINWIDTH=0> <A HREF="PostgreSQL-HOWTO-14.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-14.html"><IMG SRC="next.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/next.gif" ALT="Next"></A><A HREF="PostgreSQL-HOWTO-12.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-12.html"><IMG SRC="prev.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/prev.gif" ALT="Previous"></A><A HREF="PostgreSQL-HOWTO.html#toc13" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO.html#toc13"><IMG SRC="toc.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/toc.gif" ALT="Contents"></A><HR><H2><A NAME="s13">13. 只使用一个显示器 (monitor) 来建立多台 PostgreSQL 电脑</A></H2><P> 你可叠起电脑主机及只用一个显示器，而用一个 KWM （键盘、影像、显示器）(Keyborad, Video, Monitor) （译按∶M 是否当为鼠标？）选择器来选择所用电脑。这不但节省地方，也节省显示器、键盘和鼠标（每份总值 100 至 500 美元），和减少混乱。<P>籍著选择器，你可叠高多台 PostgreSQL 服务器（开发、测试、生产）、互联网服务器、ftp 服务器、内联网服务器、电邮服务器、新闻服务器在一个大柜。这选择器也可控制视窗 95/NT 和 OS/2 电脑。<P>请查看下列网址∶<UL><LI> DataComm Warehouse Inc，一天二十四小时，一星期七天都在致电 1-800-328-2261。他们提供所有品种的电脑硬件 <A HREF="javascript:if(confirm('http://www.warehouse.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.warehouse.com/'" tppabs="http://www.warehouse.com/">http://www.warehouse.com</A> 4 埠 手动 KVM 选择器 (PS/2) 大约 $89.99 Part No. DDS1354</LI><LI> Network Technologies Inc <A HREF="javascript:if(confirm('http://www.networktechinc.com/servswt.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.networktechinc.com/servswt.html'" tppabs="http://www.networktechinc.com/servswt.html">http://www.networktechinc.com/servswt.html</A> (120 美元/PC 8 埠) 的清单中包括 'Server Switches' 和 'Video only switches' </LI><LI> Scene Double Inc, 英国 <A HREF="javascript:if(confirm('http://www.scene.demon.co.uk/qswitch.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.scene.demon.co.uk/qswitch.htm'" tppabs="http://www.scene.demon.co.uk/qswitch.htm">http://www.scene.demon.co.uk/qswitch.htm</A> </LI><LI> Cybex corporation <A HREF="javascript:if(confirm('http://www.cybex.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.cybex.com/'" tppabs="http://www.cybex.com/">http://www.cybex.com</A> </LI><LI> Raritan Inc <A HREF="javascript:if(confirm('http://www.raritan.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.raritan.com/'" tppabs="http://www.raritan.com/">http://www.raritan.com</A> </LI><LI> RealStar Solutions Inc <A HREF="javascript:if(confirm('http://www.real-star.com/kvm.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.real-star.com/kvm.htm'" tppabs="http://www.real-star.com/kvm.htm">http://www.real-star.com/kvm.htm</A> </LI><LI> Belkin Inc <A HREF="javascript:if(confirm('http://www.belkin.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.belkin.com/'" tppabs="http://www.belkin.com/">http://www.belkin.com</A> </LI><LI> Better Box Communications Ltd. <A HREF="javascript:if(confirm('http://www.betterbox.com/info.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.betterbox.com/info.html'" tppabs="http://www.betterbox.com/info.html">http://www.betterbox.com/info.html</A> </LI><LI> 到附近的硬件商铺查询“Server Switch”或称“KVM Auto Switches”。</LI></UL> <P>在 yahoo 搜寻器中找出更多有“Server Switches”或“KVM Switches”的公司。<P>每个 PostgreSQL 资料库服务器最好用一部专用的 unix 电脑，以增强表现。任何其他程序/行程都不要在这电脑上执行。阅读你所住地方的报章的商业版找出有哪些商铺售卖 Intel 电脑和 13 □单色萤幕（十分廉宜的萤幕）。你只需要硬件，而<B>不需</B>微软视窗/DOS（节省约 150 美元）。资料库服务器不需要彩色显示器，因为你可在一个彩色的个人电脑上遥控管理。在以下地方取得 RedHat（或其他套件散布）Linux 的光碟∶<UL><LI>Linux System Labs 网址∶<A HREF="javascript:if(confirm('http://www.lsl.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.lsl.com/'" tppabs="http://www.lsl.com/">http://www.lsl.com/</A> 7 美元</LI><LI>Cheap Bytes Inc 网址∶<A HREF="javascript:if(confirm('http://www.cheapbytes.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.cheapbytes.com/'" tppabs="http://www.cheapbytes.com/">http://www.cheapbytes.com/</A> 7 美元</LI></UL> 确保你购买的硬件被 RedHat Linux 支持。购买前在 RedHat 的 ftp 站找出获推荐的硬件，如 SCSI 配接器和显示卡。用大约六百美元便可得到一台强劲的 Intel 电脑，用 RedHat Linux 来执行 PostgreSQL。从视窗 95、OS/2、Unix Motif、浏览器（如 Redbaron、Opera、Netscape 及其他廿多个）经 odbc/jdbc/perl/tcl 来连接 PostgreSQL。（浏览器正迅速成为标准的客户 (client)。）<P>用这个方法，你可只用一个显示器和一个键盘来控制很多部电脑！<P>以下有关“Server Switch”的资料<B>节录自 Networktechnic Inc</B><P>拨 800-742-8324 预订 （在美国免电话费）<P>想收到我们的产品目录的话，请把你的地址电邮到∶sales@networktechinc.com <P>只用一个键盘、显示器和鼠标来控制多部电脑这些电子选择器容许只用一个键盘、显示器和鼠标来控制最多六十四部电脑。嵌入 (embedded) 的微电脑所有时间都模拟在连接了的电脑上的键盘、显示器和鼠标的存在。<P>特性及用途<P><UL><LI>键盘、控制台或遥控</LI><LI>9 针 D 串联 或 6 针 miniDIN 鼠标支持 </LI><LI>5 针 DIN 或 6 针 miniDIN 键盘支持 </LI><LI>1600x1200 解像度而没有失真</LI><LI>使用标准的电线</LI><LI>桌面或架装 </LI></UL> <P>规格□键盘<P><UL><LI>所有连接器皆为 female</LI><LI>5 针 DIN 或 6 针 miniDIN </LI><LI>任何时候都可使所有 PC 软开机或硬开机 (hard or soft boot)</LI></UL> <P>控制□按钮<P><UL><LI>触动一个制来接到那部电脑</LI><LI>按紧一个制超过 0.5 秒进入 SCAN、BROADCAST 或 COMMAND 模式</LI><LI>前部的 LED 显示键盘的操作模式</LI><LI>键入 CTRL+* 来进入 COMMAND 模式</LI><LI>提供 SCAN、BROADCAST 或 COMMAND </LI></UL> <P>鼠标<P>* 9 针 D 串联 <UL><LI> NTI 开关对所有个人电脑模拟微软串联鼠标</LI><LI> 鼠标的 9 针 D male </LI><LI> 个人电脑的 9 针 D female </LI></UL> <P>* 6 针 miniDIN <UL><LI> NTI 开关对所有个人电脑模拟为 IBM PS/2 系列鼠标</LI><LI> 所有连接器皆为 female</LI></UL> <P>有线遥控<UL><LI>可自行选购□必须购买</LI><LI>和按制操作相同</LI></UL> <P>显示器□VGA <UL><LI>频宽为 150 MHz </LI><LI>1600X1200 点解像度而不变坏</LI><LI>所有连接器皆为 female</LI></UL> <HR><A HREF="PostgreSQL-HOWTO-14.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-14.html"><IMG SRC="next.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/next.gif" ALT="Next"></A><A HREF="PostgreSQL-HOWTO-12.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-12.html"><IMG SRC="prev.gif" 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