Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Cretinism to Davis, David

Cryotron

wire coil information computers

Cryotron, miniature switch used in computers, consisting of a short wire around which is wound a fine control coil, kept at the temperature of liquid helium so that the wire and coil are superconducting. A signal in the coil produces a magnetic field that causes the wire to lose its superconductivity and become resistant to electric current. This action stores or produces a “bit” of information. Cryotron computers may contain 100 billion components to the cubic inch, and can obtain a required bit of information from a store of 300,000 in less than a 10-millionth of a second.

See also: Superconductivity.

Crystal [next] [back] Cryogenics

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or

Vote down Vote up

over 4 years ago

Cryotron used in computers need to be cooled to liquid helium. Then how can it be used for practical applications which mostly involve room temperature? where cryotron computers are actually used?