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          <name>Title</name>
          <description>A name given to the resource</description>
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              <text>D.G.A. Electronics  D156-SS Single Board Computer</text>
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          <name>Subject</name>
          <description>The topic of the resource</description>
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              <text>hardware: single board computer</text>
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              <text>&lt;strong&gt;Historical context:&lt;/strong&gt;&lt;br /&gt;D.G.A. ELECTRONICS LTD. was founded by Doug Atkinson in 1977 in Toronto, Ontario, as an electronics design firm. It specialized in the development of custom computer hardware and software including single board computers.&lt;br /&gt;&lt;br /&gt;&lt;strong&gt;The D.G.A. ELECTRONICS&amp;nbsp; D156-SS specifications:&lt;/strong&gt;&lt;br /&gt;&#13;
&lt;ul&gt;&#13;
&lt;li&gt;CPU - Motorola 6802, 8-bit&lt;/li&gt;&#13;
&lt;li&gt;RAM - eight 14-pin sockets; two populated with HM472114 1024 x 4-bit memory chips&lt;/li&gt;&#13;
&lt;li&gt;ROM - two 24-pin EPROM sockets&lt;/li&gt;&#13;
&lt;li&gt;buss architecture: STD&lt;/li&gt;&#13;
&lt;li&gt;ports/connectors: serial and parallel, expansion buss connectors&lt;/li&gt;&#13;
&lt;li&gt;manufacturing data: 1980&lt;/li&gt;&#13;
&lt;/ul&gt;&#13;
&lt;h2&gt;&lt;/h2&gt;&#13;
&lt;h2&gt;&lt;br /&gt;&lt;span style="color: #ffffff; font-family: Arial; font-size: medium;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; MICROPROCESSOR BASED EMBEDDED CONTROL SYSTEMS&lt;br /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; AUDIO/VIDEO SWITCHING&lt;br /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; RADIO FREQUENCY COMMUNICATIONS&lt;br /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; SOFTWARE AND FIRMWARE PROGRAM DEVELOPMENT&lt;br /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; MOTOR CONTROL SYSTEMS&lt;br /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; INFRARED DEVICE CONTROL&lt;/span&gt;&lt;/h2&gt;</text>
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              <text>D.G.A. ELECTRONICS LTD</text>
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              <text>1980</text>
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              <text>North America</text>
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