Synergy User Manual and Tutorial. - THE CORE MEMORY
Synergy User Manual and Tutorial. - THE CORE MEMORY
Synergy User Manual and Tutorial. - THE CORE MEMORY
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<strong>Synergy</strong> <strong>User</strong> <strong>Manual</strong> <strong>and</strong> <strong>Tutorial</strong><br />
"The owner of the memex let us say, is interested in the<br />
origin <strong>and</strong> properties of the bow <strong>and</strong> arrow. Specifically he<br />
is studying why the short Turkish bow was apparently<br />
superior to the English long bow in the skirmishes of the<br />
Crusades. He has dozens of possibly pertinent books <strong>and</strong><br />
articles in his memex. First he runs through an<br />
encyclopedia, finds an interesting but sketchy article,<br />
leaves it projected. Next, in a history, he finds another<br />
pertinent item, <strong>and</strong> ties the two together. Thus he goes,<br />
building a trail of many items. Occasionally he inserts a<br />
comment of his own, either linking it into the main trail or<br />
joining it by a side trail to a particular item. When it<br />
becomes evident that the elastic properties of available<br />
materials had a great deal to do with the bow, he branches<br />
off on a side trail which takes him through textbooks on<br />
elasticity <strong>and</strong> physical constants. He inserts a page of longh<strong>and</strong> analysis of his own. Thus<br />
he builds a trail of his interest through the maze of materials available to him."<br />
In 1934, Konrad Zuse (1910 - 1995) was an engineer<br />
working for Henschel Aircraft Company, studying<br />
stresses caused by vibrations in aircraft wings. His<br />
work involved a great deal of mathematical calculation.<br />
To aid him in these calculations, he developed ideas on<br />
how machines should perform calculations. He<br />
determined that these machines should be freely<br />
programmable by reading a sequence of instructions<br />
from a punched tape <strong>and</strong> that the machine should make<br />
use of both the binary number system <strong>and</strong> a binary logic<br />
system to be capable of using binary switching<br />
elements. He designed a semi-logarithmic floatingpoint<br />
unit representation, using an exponent <strong>and</strong> a<br />
mantissa, to calculate both very small <strong>and</strong> very large<br />
numbers. He developed a “high performance adder”,<br />
which included a one-step carry-ahead <strong>and</strong> precision<br />
arithmetic exceptions h<strong>and</strong>ling. He also developed an addressable memory that could<br />
store arbitrary data. He devised a control unit to control all other devices within the<br />
machine along with input <strong>and</strong> output devices that convert numbers from binary to<br />
decimal <strong>and</strong> vice versa.<br />
By 1936 he completed the design for the Z1 computer (top next page), which he<br />
constructed in his parents’ living room by 1938. This was a completely mechanical unit<br />
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