Why is a hard drive called a hard drive? Detailed answer

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Why is a hard drive called a hard drive? Detailed answer

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Why is a hard drive called a hard drive?

In 1973, IBM released the Model 3340 hard drive, which was designed with two 30 MB modules. Although the final version increased the memory to 70 MB, the association of the 30/30 numbers with the popular .30-30 Winchester hunting cartridge gave the drive the code name "Winchester". This name has become a household name for all hard drives, and in English it has already fallen into disuse, and in Russian it is actively used.

Authors: Jimmy Wales, Larry Sanger

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Why don't French women get fat?

On average, a French resident consumes about 30 different foods per week, while an American consumes only five.

It is this difference in the variety of menus that many doctors partially explain the well-known ability of French women to maintain a slender figure and the tendency of Americans to be obese.

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Created the smallest transistor 01.11.2016

Physicists from the University of Berkeley in the US have created the world's first transistor with a gate of about one nanometer. This is an order of magnitude less than the smallest transistors in use today. An article by scientists was published in the journal Science, the university website briefly talks about the development.

The materials for the transistor were molybdenum sulfide and carbon nanotubes, it was this combination that made it possible to radically reduce the size of the gate - it is this element of the device that controls its conductivity. The design involves three layers: a silicon substrate, zirconium dioxide plates with a carbon nanotube passing through them, and a thin film of molybdenum disulfide.

Due to the higher resistance of molybdenum disulfide than silicon, the gate of even a single carbon nanotube creates a strong electric field to prevent electrons from "jumping" from one end of the transistor to the other using quantum tunneling.

"We have created the smallest transistors to date. The nanometer gate device proves that the right choice of materials allows further reduction in the size of electronics," said research team member Ali Javey.

It is impossible to use such transistors for electronics right now, since there is no technology for printing them and embedding them in chips, but this is a task for the future.

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