Changeset 145 in t29-www for en/devices


Ignore:
Timestamp:
Jan 27, 2010, 1:45:13 AM (14 years ago)
Author:
heribert
Message:

Heriberts Aenderungen an der Homepage:

  • Englische Extraseiten -- Design geaendert (Bildboxen->Seitentext etc.)
  • Lehrerinfo-Seite, Text geaendert
  • usw.
Location:
en/devices
Files:
3 edited

Legend:

Unmodified
Added
Removed
  • en/devices/magnetic-stick-memory.shtm

    r31 r145  
    2424<!--#echo encoding="none" var="heading" -->
    2525<div id="content">
    26     <h2 class="center"><!--#echo var="title" --></h2>
     26    <h2><!--#echo var="title" --></h2>
    2727
    2828<div class="center">
    2929   <img src="/shared/photos/rechnertechnik/speichermedien/staebchenspeicher.jpg" alt="magnetic stick memory" width="600" height="404" />
    30    <div class="bildtext-bildbreite" style="width: 600px;">
     30   <div class="bildtext-bildbreite" style="width: 600px;"></div>
    3131       <p>This ROM consists of 8 times 18 = 144 ferrite rods with one secondary winding each which are mounted on the frame of the module. Every module features 256 wires acting as primary windings. To represent a 1 the primary winding of such a rod has to be threaded around the rod while threading it past the rod will yield a 0.
    3232       <br/>The pictures (taken from a NIXDORF manual) shows one of these 256 threading wires. The read out of the ROM is done in parallel, so there are 18 read out amplifiers connected to the 18 groups of secondary windings of the rod matrix.
     
    4040> ! die im Netz zu finden sind.
    4141       -->
    42    </div>
     42   
    4343</div>
    4444
  • en/devices/plated-wire-storage.shtm

    r127 r145  
    2424<!--#echo encoding="none" var="heading" -->
    2525<div id="content">
    26     <h2 class="center"><!--#echo var="title" --></h2>
     26    <h2><!--#echo var="title" --></h2>
    2727
    2828    <div class="box right">
  • en/devices/threaded-rom.shtm

    r32 r145  
    2323<!--#echo encoding="none" var="heading" -->
    2424<div id="content">
    25     <h2 class="center"><!--#echo var="title" --></h2>
     25    <h2><!--#echo var="title" --></h2>
    2626
    2727<div class="center">
    2828   <img src="/shared/photos/rechnertechnik/speichermedien/nixdorf-rom-ausschnitt.jpg" alt="Nixdorf ROM" width="594" height="446" />
    29    <div class="bildtext-bildbreite" style="width: 594px;">
     29   <div class="bildtext-bildbreite" style="width: 594px;"></div>
    3030       <p>The idea is to represent every single bit by a tiny transformer with two separate windings. A primary winding and a secondary one (the latter one is threaded four times throught the core). The primary winding will by able to induce a signal in the secondary coil when threaded through the core. This is equivalent to storing a 1. To store a 0 the primary winding is threaded past the core.
    3131       <br/>The diode matrix on the right of the printed circuit board contains 8 times 16 diodes &ndash; this equals 128 wires which can be threaded through or past the cores of this ROM plane. Every wire runs in wiggly lines through 16 rows of 18 cores each. All in all 128 times 16 = 2048 bytes can be stored.
     
    3939      </ul>
    4040      -->
    41    </div>
     41
    4242</div>
    4343
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