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vacuum tubes are the switching components in the first generation computers to process data. later they were replaced by transistors.
Someone else would have invented them somewhat later.
Several early digital computers were made of electromechanical devices similar to those used to build automatic dial telephone exchanges used at the time. First generation digital computers were made of vacuum tubes. Second generation digital computers were made of discrete transistors (most used germanium transistors but later some silicon transistors). Third generation digital computers were made of (hybrid, SSI, MSI, LSI) silicon integrated circuits. Fourth generation digital computers are made of microprocessors and other (VLSI, ULSI, etc.) silicon integrated circuits.
none. Colossus and ENIAC were invented earlier. Discussions on later computers did not begin until 1946.
The development of the transistor and later the microcontroller have been essential for the advances in automation (robotics). Simple motor controls, actuators and sensors have been around for quite a while, but transistors allowed engineers to create microcontrollers and cost effective sensors.
Its development was announced in March 1999 and it was released a year later in Japan.See related link
Computers which was invented in the year which later came into many home in the year 1970.
The introduction of the internet occurred in the 1950's when the first computers were made. It was not until decades later, however, when people were able to have their own personal computers.
Vacuum tubes were first replaced by transistors, and later by integrated circuits.
If you are referring to computers, then there were very few computers in 1959. I don't think the small computer was invented until later. So the only computers were large ones that occupied a room and they didn't actually have a hard drive. They used large discs to store data and a cabinet filled with electronics for the processor.
It was invented by an engineer by the name of Greg Smith at Xerox in Dallas. I know because I was the person who collaborated with him to invent it. It was later stolen by Steve Job's people who stole the technology from Xerox for their Apple Lisa. I was there in the heart of it and I lived it. Karen Ancsan Power
The invention of the transistor - and the later invention of the integrated circuit, which uses transistors - made it possible to have thousands, and eventually millions and billions of components on an area of a few square centimeters, making it possible to produce complicated circuits, and thus build lots of electronic devices, including modern computers.