Changeset 240 in t29-www for en/computer/analog.shtm


Ignore:
Timestamp:
Apr 18, 2011, 8:57:56 PM (13 years ago)
Author:
heribert
Message:

Heriberts Aenderungen:

  • Startseite abgeaendert
  • Heathkit-Bilder hinzufuegt
  • etc.
File:
1 edited

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  • en/computer/analog.shtm

    r191 r240  
    11<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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    23     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
     4
    35<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
     6
    47<head><!--#set var="title"        value="Analog and hybrid computers"
    58   --><!--#set var="location"     value="analogrechner"
     
    1215 --><title>technikum29 - <!--#echo var="title" --></title>
    1316
     17
     18
    1419    <!--#include virtual="/en/inc/head.inc.shtm" -->
    1520    <meta name="t29.SVN" content="$Id$" />
    1621</head>
     22
    1723<body>
     24
    1825<!--#echo encoding="none" var="heading" -->
    1926<div id="content">
     27
    2028    <h2><!--#echo var="title" --></h2>
    2129
    2230    <!-- Top paragraphs: Translation from 20.12.2008 -->
     31
    2332    <p>Analog computers were used to compute mathematical, physical and
    2433    technical problems. They were especially capable of solving equations
     
    3847    not at all.</p>
    3948
     49
     50
    4051    <p>All systems that yield the same mathematical model are called analog
    4152    systems among one another, disregarding their technical or physical origins.
     
    4455    analog computers at that time highly differed from each other.
    4556
    46     <p>Among others, computer systems by Telefunken (1961-64) are
    47     installed. They draw awesome curves on a storage oscilloscope and
    48     xy plotter. They solve difficult problems quite quickly, but handing,
    49     programming (plug connections) and analysis is not easy.</p>
     57
     58
     59    <p>Among others, computer systems by Telefunken (1961-64) are installed. They drew awesome curves on a storage oscilloscope and xy plotter. They solved difficult problems quite quickly, but handing, programming (plug connections) and analysis is not easy.</p>
     60
     61
    5062
    5163    <!--alter Text: <p>Electronical analog computers solved mathematical
     
    5567    writer or an oscilloscope.</p>-->
    5668
     69
     70
    5771    <h3>Heathkit Analog Computer H1</h3>
     72
    5873    <div class="box center" style="margin-bottom: 0;">
    59         <img src="/shared/photos/rechnertechnik/heathkit-analogrechner.jpg" width="493" height="337" alt="Heathkit Analog Computer H1" />
     74        <img src="/shared/photos/rechnertechnik/heathkit-analog-computer.jpg" width="694" height="443" alt="Heathkit Analog Computer H1" />
    6075        <p>Heathkit, known for it's construction kits, developed an analog
    6176        computer in 1956 that was primary designed for education. This
    6277        monster has 70 tubes, whereas 45 were placed external due to better
    6378        cooling. It is equipped with 15 computing amplifiers.</p>
    64     </div>
     79
     80    </div>
     81
     82
    6583
    6684    <div class="box left clear-after" style="margin-top: 0;">
    67        <img src="/shared/photos/rechnertechnik/heathkit-ausschnitt.jpg" alt=" Heathkit Analog Computers H1" width="247" height="179" class="nomargin-bottom"/>
     85       <img src="/shared/photos/rechnertechnik/heathkit-detail.jpg" alt=" Heathkit Analog Computers H1" width="400" height="277" class="nomargin-bottom"/>
     86
    6887       <p class="bildtext">
     88
    6989          It demonstrates archaic early technology from the first generation.
    7090          We have connected a compatible xy plotter equipped with tubes, too.
     
    7292          href="http://www.fitg.de/fitg_english/">FITG (Association for the
    7393          promition of industrial and technological history)</a>.
     94
    7495       </p>
    75     </div>
     96<p class="small">
     97Excerpt from the original prospekt:<br>
     98This is a highly flexible and accurate analog computer, designed to fill requirements not presently met by commercial computer. It is an instrument suitable for use as a design tool in industry and universities. An advanced “slide rule” which permits engineering or research personnel to electronically simulate equations or physical problems and save many hours of calculation or experimentation.....
     99Because it is a kit, and the labor and overhead costs found in present day computers are eliminated, the Heath Computer can be obtained for use in situations where a computer was ruled out in the past because of cost.......</p>
     100    </div>
     101
     102
    76103
    77104    <div class="box left clear-after">   
     105
    78106        <h3>Heathkit Analog Computer EC-1</h3>
    79         <img src="/shared/photos/rechnertechnik/heathkit EC-1.jpg" width="365" height="256" alt="Heathkit EC-1" />
     107
     108        <img src="/shared/photos/rechnertechnik/heathkit-ec1.jpg" width="400" height="252" alt="Heathkit EC-1" />
     109
    80110        <p>This is a very small analog computer that was designed for
    81111           educational purpose. It was built since 1960 and was equipped
     
    85115           inexactly to be used for real computing.
    86116           <br/>This device costed around 1.900 DM (about 900 Euro/500US$) </p>
    87     </div>
     117
     118    </div>
     119
    88120
    89121    <div class="box right">
     122
    90123        <h3>Telefunken RAT 700</h3>
     124
    91125        <img src="/shared/photos/rechnertechnik/telefunken_rat700.jpg" width="291" height="917" alt="Telefunken RAT 700" class="nomargin-bottom" />
     126
    92127        <p class="bildtext">
     128
    93129            The image shows the <b>Telefunkten RAT 700</b> in the bottom (first
    94130            model from 1961), above a part from the successor. On the new model
     
    100136            direct voltage is amlified by using choppers still today, but of course
    101137            they are made with electronic components.
     138
    102139        </p>
     140
    103141    </div>
    104142
    105143    <div class="box center" style="margin-right: 291px">
     144
    106145        <h3>GTE Analog Computer EA22</h3>
     146
    107147        <img src="/shared/photos/rechnertechnik/gte-analogrechner.jpg" width="312" height="346" title="GTE Analog computer EA22" />
     148
    108149        <p>
    109150          It's quite remarkable that the EA22 from GTE looks like the Telefunken
     
    114155          firm <u>G</u>oldmann <u>T</u>echnische <u>E</u>elektronik,
    115156          Ulm/Donau.
     157
    116158        </p>
    117     </div>
    118 
     159
     160    </div>
    119161    <div class="clear">&nbsp;</div>
     162
    120163        <!-- Yay, strange layout... -->
     164
    121165               
     166
    122167    <h3>EAI 180 and EAI 185 digital-anlog computer</h3>
     168
    123169     
     170
    124171    <p><b>EAI 180</b> from "Electronic Associates Incorporated",
     172
    125173       New Jersey, is a so called <b>hybrid computer</b>  (hybris [greek]: From twofold parentage), year of manufacture 1970. It contains the parts of an analoge computer and these from a digital computer. The device is equipped with IC's from the first generation (DTL-technology). The calculation circuit is plugged with cables on the front panel. The cycle time from the analoge part can be set to less than 10ms. With that parameter, an equation will be solved at least 100 times per second. So you can watch the output with a simple oscilloscope.<br><br>
     174
    126175    </p>
    127176
    128177    <div class="box center auto-bildbreite">   
     178
    129179        <img src="/shared/photos/rechnertechnik/eai180.jpg" width="545" height="435" alt="EAI 180 hybrid computer" />
     180
    130181                <p class="bildtext"><b>EAI 180 hybrid computer</b></p>
    131     </div>
    132        
     182
     183    </div>
     184
    133185        <div class="box center auto-bildbreite">
     186
    134187        <img src="/shared/photos/rechnertechnik/eai,185.jpg" width="545" height="535" style="float:none" alt="EAI 185 Hybridrechner" />
     188
    135189                <p class="bildtext"><b>EAI 185 hyprid computer</b></p>
     190
    136191        </div>
    137192
     
    145200
    146201    <h3>Dornier DO 240 analog computer</h3>   
    147    
     202
    148203    <div class="box left clear-after">
     204
    149205         <img src="/shared/photos/rechnertechnik/do_240.jpg" alt="Dornier DO 240" width="424" height="412"/>
    150206         <p class="bildtext">
     207
    151208             The analog computer DO 240, made by the German enterprise DORNIER, is a high precision device,
    152209             compared to the EAI hybrid computers, which were used almost only for education due to their
     
    156213             nixie tubes as a display), a digital counter, two function generators and many more.
    157214             This computer was built in the early 1970s and was priced at 80.000 DM (about 40.000 euro/dollar)
     215
    158216         </p>
     217
    159218    </div>
    160219
    161220        <h3>(Cylindrical) slide rules</h3>
     221
    162222    <div class="box center">
    163223        <img src="/shared/photos/rechnertechnik/rechenschieber.jpg"
    164224          alt="Slide rule (slipstick) and Cylindrical slide rule" width="694" height="161"/>
    165     </div>
    166        
     225
     226    </div>
     227
    167228    <p>
    168229        Last but not least a mechanical analog computer that was used up to
     
    179240        </p>
    180241
     242
     243
    181244</div><!-- end of content -->
     245
    182246<!--#include virtual="/en/inc/menu.inc.shtm" -->
    183247</body>
    184248</html>
     249
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