source: t29-www/en/computer/ibm1130.php @ 562

Last change on this file since 562 was 562, checked in by heribert, 5 years ago

News ins Englische Übersetzt.
Facit in 1130 (en) integriert.
Gamma 3 ??
Wäre gut, wenn du da nochmal drüber schauen könntest (meine Übersetzungen)

File size: 4.9 KB
2        $seiten_id = 'ibm1130';
3        $version = '$Id: ibm1130.php 271 2013-04-23 19:23:24Z heribert $';
4        $titel = 'IBM 1130 Computing System';
6        require "../../lib/technikum29.php";
9        <h2 id="ibm1130"><b>IBM 1130</b>  &nbsp;  Computing System</h2>
11    <div class="box center clear-after">
12                <img src="/shared/photos/rechnertechnik/ibm-1130.jpg" alt="IBM 1130 Elektronische Rechenanlage" width="700" height="603" />
13                <div class="bildtext">
14                <p><b>IBM 1130</b></p>
15                </div>
16                <br><br>
17                <p>Since December 2013, we own a very nice and also quite interesting "Electronic Computing System" by IBM. This type was delivered for the first time in 1965 and intended for use by scientists, engineers, and mathematicians.<br>
18                The "AMPEX TMZ" (digital tape memory system) is connected to the equipment, so we are urgently looking for Manuals (schematics).<br>
19There is much to report about, but in first place the optical and electronical restoration of the Computer have to be realized.<br> This section will be continued within a short time.</p><br>
21<div class="desc-left borderless no-copyright">
22                        <a class="popup" href="/shared/photos/rechnertechnik/facit4000.jpg">
23                                <img src="/shared/photos/rechnertechnik/facit4000.jpg" alt="Lochstreifengeräte" width="352" height="137" />
24                        </a>
25                        <p class="small"><b>Facit Paper tape devices</b><br>
26                        Rewinder type 4015, punch type 4060, reader type 4001 and punch electronics type 5104<br>
27                        Enlarge: click on picture!</p>
28                </div>
30                <p>The pictured paper tape devices of the Facit 4000 series were connected to the system.
31<div class="clear"></div>
34<h3 id="blog-ibm">Restauration-Blog</h3>
35                <p class="small">
36                As we did for the restoration of the UNIVAC 9200, we will again have a repair
37blog for the IBM 1130. The main problem here is due to the rather special
38technology employed by IBM, the so-called SLT (Solid Logic Technology). The
39circuit elements are small ceramic tiles with discrete transistors, resistors
40etc. which thus form an equivalent to an integrated circuit. The problem is
41that these elements and boards are no longer available. So the very advanced
42technology of IBM makes it hard to maintain these old machines today.<br>
43In the same time other companies like BULL still used discrete transistors mounted
44on large circuit boards. Worlds colliding... Such a restoration process is
45extremely time consuming and cumbersome and maybe we wouldn't start it at all
46if we knew in advance how many bugs there are to resolve.</p><br>
49                <div class="desc-left">
50                <a class="popup" href="/shared/photos/rechnertechnik/ibm-1130-board.jpg">
51        <img src="/shared/photos/rechnertechnik/ibm-1130-board.jpg" alt="Modul der IBM1130" width="195" height="247" /></a>
52        <p class="small">Typical <b> SLT-module </b>. The IBM circuit diagram was printed on high-speed printers.<br>Disadvantage: heavy to read because all logic elements look identical. <br>Enlarge: click on picture!</p></div>
54                <p class="small">
56                <b>Dec.2013:</b>  Cleaning the machine and removing disintegrated foam rubber mats.<br><br>
58                <b>30.12.2013:</b> Due to curiosity we already invested much time. After installing
5932 kB memory (with a word length of 16 bits) the first power on was attempted: No magic smoke escaping - a big success! Nevertheless, the console typewriter banged its type head
60repeatedly at the left margin so we switched off quickly.<br><br>
62                <b>2.1.2014:</b> Removal of the console typewriter for easier maintenance. After
63three hours the bug was found: Four small bars, moved by springs, were
64immovable due to old oil which had solidified. Correction was simple due to
65some W40.<br><br>
67                <b>4.1.2014:</b> Since the console typewriter is now working flawless, we
68concentrated on writing data to the memory system. At first sight, the memory
69is working a "bit".<br><br>
71                <b>6.1.2014:</b> After we have learned how to deposit data to the memory and read it
72back, it became clear that there are at least two problems: 1: Depositing
73values in consecutive memory addresses fails, and 2: two out of 15 bits are
74missing at all, causing parity errors.<br>
75                <br><br>
77                <b>8.1.2014:</b> The second error was found rather quickly: One "head connector" was
78missing from the second memory module. We fail to understand how such an item
79can get lost. The first error is harder to find.<br><br>
81                <b>11.1.2014:</b> The first error turns out to be a show-stopper: The address
82generation is working fine but the driver for the address lines 11, 12, 13,
83and 14 is missing since there is no board 7342! Somehow this has been removed
84from the machine! That is the worst case for every restoration project! A
85closer inspection revealed, that a second board, 4628, is also missing from
86the printer control. We are now looking desperately for replacement boards or
87at least the schematics. If you can help, please let us know!  (Pictures
88of the missing boards can be found in the "Wanted" area of this web site.)
90                </small>
91                <p>Continuation follows</p>
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