Changeset 624 in t29-www
- Timestamp:
- Aug 2, 2014, 9:31:19 PM (9 years ago)
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en/computer/electro-mechanical.php
r299 r624 22 22 </div> 23 23 24 <h2><!--#echo var="title" --></h2> 25 <p> 24 <h2>(Electro-) mechanical calculators</h2> 25 26 27 <div class="box left clear-after"> 28 <img src="/shared/photos/rechnertechnik/burroughs.jpg" width="447" height="606" alt="Borroughs Mod.2" /> 29 <p class="bildtext"> 30 31 <p> 26 32 The first electronically calculating calculators were gigantic mainframes 27 33 in the 1940/50s. Until then, calculators worked mechanically. … … 31 37 <p> 32 38 <!--The first printing mechanical calculator (1905) is an unicum with an huge exterior engine!--> 33 From the first fully automatic machines (1927) until calculators with 39 40 From the first fully automatic machines (1927) until calculators with 34 41 accumulating memory (1960s), mechanical calculators computed the result 35 42 indepently after user input. … … 38 45 Looking at mechanical calculators, one quickly recognize the enormous 39 46 importance of the positional notation.</p> 47 40 48 <p> 41 42 <div class="box left clear-after">43 <img src="/shared/photos/rechnertechnik/burroughs.jpg" width="447" height="606" alt="Borroughs Mod.2" />44 <p class="bildtext">45 49 <b>Burroughs Mod. 2.</b> 46 50 The first printing calculating machine was invented in the USA (about 1905)
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