Changeset 30 in t29-www


Ignore:
Timestamp:
Aug 17, 2008, 10:53:27 PM (11 years ago)
Author:
sven
Message:

VERSION 5.8.0
=============

Sync der englischen Uebersetzung:

  • /en/computer/storage-media: Plated Wire: Neues Bild + neuer Text
  • /en/devices/plated-wire-storage.shtm: teilweise verbesserte Uebersetzungen

-- Sven @ Workstation

Location:
en
Files:
2 edited

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  • en/computer/storage-media.shtm

    r16 r30  
    1515    <meta name="DC.Title" content="Technikum29 - <!--#echo var="title" -->" />
    1616    <meta name="DC.Subject" content="<!--#echo var="title" -->" />
    17     <meta name="t29.germanoriginal" content="08.04.2008/v5.7.21" />
    18     <meta name="t29.thistranslation" content="18.06.2008/v5.7.22" />
    19     <meta name="t29.comment" content="BULL GAMMA 3 Laufzeitspeicher neu" />
     17    <meta name="t29.SVN" content="$Id$" />
     18    <meta name="t29.germanoriginal" content="17.08.2008/v5.8" />
     19    <meta name="t29.thistranslation" content="17.08.2008/v5.8" />
     20    <meta name="t29.comment" content="plated wire storage new text + photo" />
    2021    <!--changelog: 12.09.2007/v5.7.7 based on 17.07.2007/v5.7FINAL: Initialübersetzung von de dank B.Ullmann :-) -->
    2122    <!--changelog: 01.12.2007/v5.7.13 based on 22.08.2007/v5.7.5: Added plated wire storage -->
    2223    <!--changelog: 21.03.2008/v5.7.20 based on 18.02.2007/v5.7.18: Neues Kernspeicherbild uebernommen, Alt-Texte von Bildern uebersetzt -->
     24    <!--changelog: 18.06.2008/v5.7.22 based on 08.04.2008/v5.7.21: BULL GAMMA 3 Laufzeitspeicher neu -->
    2325</head>
    2426<body>
     
    119121       <!-- Neu seit 01.12.07 -->
    120122       <h3><a name="plated-wire-storage">Plated wire storage</a></h3>
    121        <a href="/en/devices/plated-wire-storage.shtm"><img src="/shared/photos/rechnertechnik/grafiken/magnetdrahtspeicher-uebersicht.en.gif" alt="Simplified diagram showing the plated wire storage" width="400" height="254" /></a>
     123       <!--<a href="/en/devices/plated-wire-storage.shtm"><img src="/shared/photos/rechnertechnik/grafiken/magnetdrahtspeicher-uebersicht.en.gif" alt="Simplified diagram showing the plated wire storage" width="400" height="254" /></a>-->
     124       <a href="/en/devices/plated-wire-storage.shtm"><img src="/shared/photos/rechnertechnik/speichermedien/magnetdrahtspeicher.jpg" alt="Photography from a plated wire storage, zoomed greatly" width="300" height="266" /></a>
    122125
    123        <p>The plated wire storage was intended for replacing the core memory. Our
     126       <!-- new text and image since 17.08.08 -->
     127       <p>The plated wire storage was intended for replacing the core memory.  Our
    124128          <a href="/en/devices/univac9400/univac_9300.shtm">UNIVAC 9300</a> is equipped
    125           with this type of memory. Unfortunately it is very error-prone.</p>
    126 
    127        <p>You can get <a class="go" href="/en/devices/plated-wire-storage.shtm">further informations and many graphics</a> by clicking on the picture.</p>
     129          with this type of memory that was initially announced by UNIVAC for the new
     130          UNIVAC 9000 series as a "technical revolution" in their magazine "The punch card"
     131          in 1967.</p>
     132       <p>While research and development in the Goddard Space Flight Center of the US space
     133          program, NASA, the american government closed a deal with UNIVAC to develop a
     134          storage medium with a total input power less then 1 Watt, non-destructive readout
     135          (that is, no more neccessarity to write the informations after reading them),
     136          high capacity, low cycle time and functionality in a temperature range from
     137          -20° C to +50°C (-4°F to 122°F).
     138          <br/>In this way the plated wire storage was developed, based on a cuple of
     139          genious ideas. Unfortunately, nowadays it is very error-prone.</p>
     140       <p>Clicking on the photography will yield further informations about the
     141          <a class="go" href="/en/devices/plated-wire-storage.shtm">design of the plated
     142          wire storage</a>.</p>
    128143       <div class="clear"></div>
    129144   </div>
  • en/devices/plated-wire-storage.shtm

    r7 r30  
    77
    88    <!--#include virtual="/de/inc/extra-head.inc.shtm" -->
    9     <meta name="t29.germanoriginal" content="21.10.2007/v5.7.10" />
    10     <meta name="t29.thistranslation" content="01.12.2007/v5.7.12" />
    11     <meta name="t29.this.comment" content="initialübersetzung von de" />
     9    <meta name="t29.SVN" content="$Id$" />
     10    <meta name="t29.germanoriginal" content="17.08.2008/v5.8.0" />
     11    <meta name="t29.thistranslation" content="17.08.2008/v5.8.0" />
     12    <meta name="t29.this.comment" content="several text improvements and new translations (new german text)" />
     13    <!--changelog: 01.12.2007/v5.7.12 based on 21.10.2007/v5.7.10: initialübersetzung von de -->
    1214</head>
    1315<body>
     
    2022    </div>
    2123
    22     <p>In the early 1970s, magnetical core memory was quite expensive. The cycle time (time needed to read and rewrite the information) was quite big, because all information had to be rewritten after they had been read.
     24    <p>In the early 1970s, magnetical core memory was quite expensive and slow. That is, the cycle time (time needed to read and rewrite the information) was quite long, because all information had to be rewritten after they had been read. Furthermore the storage medium was not consistent, all stored informations vanished after the power supply was turned off.
    2325      <br/>As a replacement, the plated wire was invented, just before the first semiconductor memories were ready for beeing mass-produced. The plated wire consists of magnetic wire which replaces the cores (see picture at the right).</p>
     26    <p>The installations from the UNIVAC 9000 series (like our <a href="/en/devices/univac9400/univac_9300.shtm">UNIVAC 9300</a>) were equipped with plated wire storages. We could offer pictures of our storage units, but the assembly of this type of memory is quite opaque. Therefore we publish self-drawn diagrams to illustrate the plated wire characteristics.</p>
    2427
    25     <p>The installations from the UNIVAC 9000 series (like our <a href="/en/devices/univac9400/univac_9300.shtm">UNIVAC 9300</a>) were equipped with plated wire storages. We could offer pictures of our storage units, but the assembly of this type of memory is quite opaque. Therefore we publish self-drawn diagrams to illustrate the plated wire characteristics.</p>
     28    <p>From the physical point of view the magnetical core memory is a thin-film storage medium. The information carrier is a 1 micrometer thick permalloy solenoid film (the "word strap") that is stacked on the "plated wire", that is a beryllium copper wire with 0.13mm in diameter.</p>
    2629
    2730    <div class="box center" style="clear:right;">
     
    2932    </div>
    3033
    31     <p>The plated wire constists of copper with a thin film which consists of an iron-nickel alloy. These plated wires are embedded into word straps which are perpendicular to two sides of the plated wire. In the easy direction of magnetization (see diagram above), the magnet layer is quite stable, whereas it is unstable in the hard direction of magnetization.
     34    <p>That plated wire constists of copper with a thin film which consists of an iron-nickel alloy. These plated wires are embedded into word straps which are perpendicular to two sides of the plated wire. In the easy direction of magnetization (see diagram above), the magnet layer is quite stable, whereas it is unstable in the hard direction of magnetization.
    3235    <br/>To read the information, the word current is raised. The current will establish a magnetic field which tries to align the magnetization vector at the area in the plated wire covered by the word strap.
    3336    Lengthwise, the magnetic film is very hard to magnetize, therefore the vector only librates (insteads of rotating) <!--and falls back to the former position after the word current was lowered.-->
     
    4952
    5053    <ul id="nav">
    51           <li><a href="/en/computer/storage-media.shtm#plated-wire-storage">Storage media</a></li>
     54          <li><a href="/en/computer/storage-media.shtm#plated-wire-storage">Storage media: The plated wire storage</a></li>
    5255          <li><a href="/en/">technikum29 homepage</a></li>
    5356    </ul>
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