Changeset 914 in t29-www for en/computer/electro-mechanical.php

Mar 12, 2016, 9:54:26 PM (3 years ago)

Englische Übersetzung für Logos 27-2

1 edited


  • en/computer/electro-mechanical.php

    r883 r914  
    106106    </div>
     109        <div id="logos" class="box right clear-after">
     110         <img src="/shared/photos/rechnertechnik/olivetti-logos27-2.jpg" width="500" height="362" alt="Oivetti Logos 27-2" />
     111        <p class="bildtext"><b>Olivetti Logos 27-2</b>,
     112                a mechanical monstrosity as a last stand against the
     113                then modern electronic calculators. The first version hit the market in 1965, followed by this big second modell which weighs in excess of 27 kg! This calculator features three memory cells, automatic carry, floating point and several additional features.<br>
     115                Olivetti proudly presented this printing calculator as a workhorse for
     116scientific applications, "slightly" exaggerating its features and
     117versatility. <br>
     118As typical applications, the calculation of square and cubic roots were
     119demonstrated as well as the solution of systems of linear equations,
     120determinants, polynomials, series expansion etc. Of course, these tasks could
     121not be performed by just pressing a single key. Instead, simple algorithms
     122were necessary, written down as sequences of basic operations which often
     123required the user to enter approximate values. The calculation of the cubic
     124root of 2993582.625 for example required 25 key strokes and three inputs of
     125values. So much for workhorse for scientific applications - without any means
     126of storing a program working with this machine was mostly a tedious task.
     128        </div>
     129                <div class="box left clear-after">
     130                <a href="/shared/photos/rechnertechnik/logos-innen-links.jpg">
     131                                <img src="/shared/photos/rechnertechnik/logos-innen-links.jpg" width="196" height="147"/>
     132                        </a>
     133                <a href="/shared/photos/rechnertechnik/logos-innen-rechts.jpg">
     134                <img src="/shared/photos/rechnertechnik/logos-innen-rechts.jpg" width="196" height="147"/>
     135                </a>
     136                It looks as if the brilliant designers of mechanical calculators wanted to created a last fulminant hurrah just to show what could be done with mechanical systems although the time was ripe for electronic calculators. It should be noted that Olivetti already had introduced the rather sophisticated electronic calculator <a class="go" href="/en/computer/programmable.php#101"><b>PROGRAMMA 101</b></a> back in 1966.
     138Keeping such a mechanical marvel alive is a formidable task. Even using the
     139wrong oil or grease for lubrication can lead to stuck mechanisms resulting in
     140a completely unusable machine in a short time. Unfortunately, our machine has
     141suffered so badly that it is beyond repair.
     143By clicking on the small pictures you will get some impressions of this
     144mechanical marvel.</p>
    108147         <div class="box left clear-after">
    109148        <img src="/shared/photos/rechnertechnik/kids-rechnen-mechanisch.jpg" width="448" height="336" alt="Kid´s beim Exp.-Workshop" />
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