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In connection with his work on the electric light, Thomas Edison played with a vacuum diode,
which he made by adding a plate electrode to one of his incandescent bulbs. It was definitely
a vacuum tube, but all it could do was rectify, which was certainly a valuable talent, but had
limited usefullness.
Dr. Lee DeForest added the grid electrode to Edison's diode, creating a triode with the ability to
power-amplify small signals, and to create self-sustaining oscillation. I think that was in 1907.
What else can I help you with?
Did Alan Turing made the vacuum tubes computers?
No, he had to use mechanical gears, etc. because they were the only device technology available in his time. Electric relays were first developed about 15 years after he designed his computer, while vacuum tubes were first developed about 90 years after he designed his computer.
How many vacuum tubes are in the Univac I computer?
It used 5200 vacuum tubes.
Which invention replaced vacuum tubes in computers?
Transistors were first developed in 1947 by Bell Telephone laboratories. They replaced vacuum tubes, which were big, bulky, costly, and unreliable. Transistors are most often used to regulate the flow of an electrical current and to switch electricity on and off.
What was the role of the valves in Colossus?
the first electronic computers were built before the invention of the transistor or integrated circuit chip. They used vacuum tubes for the processing and temporary memory. In Britain those tubes were called valves.
What was the role of the colossus valves?
the first electronic computers were built before the invention of the transistor or integrated circuit chip. They used vacuum tubes for the processing and temporary memory. In Britain those tubes were called valves.
What technology was the first step towards electronic miniaturization?
The transistor was the invention that allowed electronics to move away from the use of vacuum tubes (also called valves).
Why was the invention of integrated circuit important?
Because if the integrated circuit "The Chip" wasn't invented, Then we would still be using vacuum tubes. Which are weaker, and more expensive to have.
Do all vacuum tubes light up?
No, there are some cold cathode vacuum tubes. These do not light.
Where is a good place near Seattle where you can buy old vacuum tubes?
This would depend on the type of vacuum tubes needed. Any car part store will carry vacuum tubes for a car, general stores carry vacuum tubes for household vacuums, and AC part stores will carry vacuum tubes for the AC/Heating system of a house.?æ
Where was vacuum tube was made?
who made the vacuum tubes
Why did the Colossus computer need valves?
the first electronic computers were built before the invention of the transistor or integrated circuit chip. They used vacuum tubes for the processing and temporary memory. In Britain those tubes were called valves.
How many vacuum tubes in first generation computer?
ENIAC was the first digital general purpose computer, built in 1946, and with 17,468 vacuum tubes. The Illiac I, the first computer built and owned by a US educational institution, had 2800 vacuum tubes. The IBM 604 had about 2000 vacuum tubes.
