- Timestamp:
- Sep 1, 2010, 10:04:43 PM (13 years ago)
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- en
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en/computer/electro-mechanical.shtm
r184 r185 21 21 <div id="content"> 22 22 23 24 <h2>Mechanische Rechenhilfen</h2> 23 <h2>Mechanical Adding Machines</h2> 25 24 26 25 <div class="box left clear-after"> -
en/computer/electron-tubes.shtm
r184 r185 25 25 development of broadcast engineering in the 1920/30s. 26 26 <br/>The first electronic desk calculator in the world (1962) is a real milestone. The 27 modern-looking monster features 1 44electron tubes and belongs consequently to the first27 modern-looking monster features 188 electron tubes and belongs consequently to the first 28 28 generation of calculators. It has a wonderful glowing display. However, the 29 29 tube based computer can only compute with the four basic arithmetic operations and -
en/computer/ic-technology.shtm
r184 r185 63 63 <p> 64 64 WANGs versioning scheme is a bit unusual: The computers were released in this order: 700, 500, 600, 400. 65 <br>The Wang 400 (year of manufacture 1971is a pared-down version of the 700.65 <br>The Wang 500 (year of manufacture 1971) is a pared-down version of the 700. 66 66 The most important scientific functions were programmed directly in the 67 67 threaded ROM, they did not have to be loaded via cassette any more. In the -
en/computer/transistors.shtm
r184 r185 100 100 </p> 101 101 102 <!-- 102 103 <p>The first digital transistorised calculator was produced in Italy (IME 84, 1964). In 1965, 103 104 OLYMPIA built a calculator which was capable of handling floating-point numbers and at the 104 105 same time, the company WANDERER released the .</p> 106 --> 105 107 <!--Gibts ja jetzt mit Bild: FRIDEN from the USA surprised with a calculator that displayed the contents of four registers on one cathod ray tube at the same time. But all these calculators could only compute with the four fundamental arithmetic operations, like many others. At least some of them could already extract a root. A core memory mostly served as storagemedia. The memory shown below is especially illustrative.</p>--> 106 108 … … 118 120 <img src="/shared/photos/rechnertechnik/friden-display.jpg" alt="Display des Friden 130" width="274" height="134" /> 119 121 <p class="bildtext"> 120 In 1966 the <b>FRIDEN 130</b> was announced. It was the first desktop calculator featuring a122 The <b>FRIDEN 130</b> was announced in 1964. It was the first desktop calculator featuring a 121 123 CRT display using an oscillocope tube to display the contents of four internal registers of the machine. 122 124 The memory is based on a <a class="go" href="storage-media.shtm#Magnetostrictive_memory">magnetostrictive line</a>. -
en/computer/univac9200.shtm
r183 r185 119 119 of punched data was hard work. The computer compares the data which should be 120 120 punched with the position of the hammers in the punch station in a very 121 complex way. On ly one of the 24 inductive sensing elements was broken,121 complex way. One of the 24 inductive sensing elements was broken, 122 122 furthermore a transistor which amplifies the particular induced voltage was 123 123 out of order and there was a cold solder joint. Finally the complete sensing -
en/search.shtm
r184 r185 27 27 <p class="bildtext"> 28 28 We are looking for an <b>Digicorder DG 408</b> or <b>DG 308</b> for the 29 IME 86 <a href="/en/computer/transistors.shtm">desk calculator</a>.29 IME 86 desk calculator. 30 30 <br>Exchange objects are available on demand. 31 31 </p>
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