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WHAT CAME BEFORE RAMS AND WHAT YEAR DID IT COME OUT?

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Before you had RAM, you had capacitor tubes- this technology was prevalent in the 50's and 60's- however actually was invented in 1946. But actually the principle of RAM came out, at least theoretically back in 1822 by Charles Babbage with his Difference Engine.

Posted on Oct 16, 2010

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You can probably find the answer by checking out THIS wiki.

An early type of widespread writable random-access memory was the magnetic core memory, developed from 1949 to 1952, and subsequently used in most computers up until the development of the static and dynamic integrated RAM circuits in the late 1960s and early 1970s. Before this, computers used relays, delay line/delay memory, or various kinds of vacuum tube arrangements to implement "main" memory functions (i.e., hundreds or thousands of bits), some of which were random access, some not. Latches built out of vacuum tube triodes, and later, out of discrete transistors, were used for smaller and faster memories such as random-access register banks and registers. Prior to the development of integrated ROM circuits, permanent (or read-only) random-access memory was often constructed using semiconductor diode matrices driven by address decoders.

Posted on Oct 15, 2010

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