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2. List of vacuum-tube computers - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum-tube_computers

   Built for the U.S.'s National Bureau of Standards, it had 2,300 vacuum tubes. It had 256 words (each 37 bits) of memory, using Williams tubes: ERA Atlas: 1950 (Military version of Univac 1101) Used 2,700 vacuum tubes for its logic circuits MADDIDA: 1950 6 Special-purpose digital computer for solving a system of differential equations.

3. List of vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_tubes

   This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics.

4. Vacuum-tube computer - Wikipedia

   en.wikipedia.org/wiki/Vacuum-tube_computer

   A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries, if not millennia, the history of vacuum tube computers is confined to the middle of the 20th century. Lee De Forest invented the triode in 1906. The ...

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   4-Cutter SDS+ Carbide Hammer Drill Bit Masonry Kit. If you plan on drilling through concrete with rebar, save yourself time and money by using these heavy-duty Milwaukee bits.

6. Vacuum tube - Wikipedia

   en.wikipedia.org/wiki/Vacuum_tube

   Later thermionic vacuum tubes, mostly miniature style, some with top cap connections for higher voltages. A vacuum tube, electron tube, [1] [2] [3] valve (British usage), or tube (North America) [4] is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

7. How weight loss could tip America's economic scales - AOL

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   18% Alcohol, marijuana, and other substances. 17% Medical bills. 15% Prescription medications. 14% Gym or diet memberships. 10% Vacation costs (additional seats on airplanes, expensive hotel food ...