Computer Terminology

# What is the difference between quantum computer and supercomputer?

###### Wiki User

###### August 17, 2008 2:39AM

a quantum computer uses molecules to do its calculations.

super computers are just computers with massive resources available to them,

## Related Questions

###### Asked in Physics, Quantum Mechanics

### Difference between quantum mechanics and quantum theory?

There is no real difference behind the terms quantum mechanics
and quantum physics and quantum theory.
If one wants to make a linguistic distinction, you can.
Quantum theory is the more encompassing term including any
theoretical explanations of quantum phenomena and and
generalization.
Quantum Mechanics or Quantum Physics refers more to the physical
laws which govern the quantum world of all quantum phenomena, and
even applied to that world before we had developed the quantum
theory with all the mathematics and equations to describe the
quantum world. It parallels the meaning of the term Classical
Physics.

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### What is the Kuzyk quantum gap?

###### Asked in Authors, Poets, and Playwrights

### What has the author Siegmund Brandt written?

Siegmund Brandt has written:
'Quantum mechanics on the Macintosh' -- subject(s): Computer
graphics, Computer programs, Computer-assisted instruction, Data
processing, Interactive computer systems, Interquanta, Macintosh
(Computer), Programming, Quantum theory
'Interactive Quantum Mechanics' -- subject(s): Quantum theory,
Java (Computer program language), Computer graphics, Computer
programs, Interactive computer systems, Computer-assisted
instruction
'Data analysis' -- subject(s): Probabilities, Mathematical
statistics

###### Asked in Electronics Engineering

### Why the xor gate is the most impurtant in quantum computer?

The most important gate is probably the CNOT gate, because
combined with qubit superpositions and measurements, it forms the
basis of a universal quantum computer. A quantum computer uses CNOT
gates instead of conventional logic gates (such as NAND) because
quantum mechanics requires that quantum computations be
reversible.

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###### Asked in Computers, Computer Terminology, Computer History

### What is a Quantum Computer?

Quantum computing utilizes nuclear spins to store and process
information whereas classical computers operate using solid state
electronics, notably the transistor. Quantum computing is not
inherently any faster than classical computing. The difference is
that quantum computing allows for parallel processing. To explain,
if you asked a classical computer to perform two calculations, it
would do them in sequence, returning one answer after the other. A
quantum computer, when asked to do the same thing, would return
both answers at once. While it performed the actual computation
faster, it takes an equal amount of time in the end, because you
have to figure out which answer goes to which question with the
quantum computer. Certain algorithms have been developed for
quantum computers (which can capitalize on purely quantum
mechanical behavior such as convolution) which allow for
specialized functions to be sped up. The two most common examples
are directory lookups and number factoring. Because of the latter,
quantum computers hold importance in the field of cryptography.
Recently IBM created a quantum computer which factored 15 into 5
and 3. The technology is still in its infancy, but it is steadily
moving forward.