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# Computers

## Latest Articles

### What Is Analog Computing?

You don’t need 0s and 1s to perform computations, and in some cases it’s better to avoid them.

### Physicists Finally Find a Problem That Only Quantum Computers Can Do

Researchers have shown that a problem relating to the energy of a quantum system is easy for quantum computers but hard for classical ones.

### Scientists Find Optimal Balance of Data Storage and Time

Seventy years after the invention of a data structure called a hash table, theoreticians have found the most efficient possible configuration for it.

### An Easy-Sounding Problem Yields Numbers Too Big for Our Universe

Researchers prove that navigating certain systems of vectors is among the most complex computational problems.

### The Quest to Quantify Quantumness

What makes a quantum computer more powerful than a classical computer? It’s a surprisingly subtle question that physicists are still grappling with, decades into the quantum age.

### The Deep Link Equating Math Proofs and Computer Programs

Mathematical logic and the code of computer programs are, in an exact way, mirror images of each other.

### Machine Learning Aids Classical Modeling of Quantum Systems

By using “classical shadows,” ordinary computers can beat quantum computers at the tricky task of understanding quantum behaviors.

### New Codes Could Make Quantum Computing 10 Times More Efficient

Quantum computing is still really, really hard. But the rise of a powerful class of error-correcting codes suggests that the task might be slightly more feasible than many feared.

### Data Compression Drives the Internet. Here’s How It Works.

One student’s desire to get out of a final exam led to the ubiquitous algorithm that shrinks data without sacrificing information.