The Technology Authority

Dell XPS Desktop 8940 Special Edition review: A whole lot of computer in a small space

Josh Goldman/CNET

The Dell XPS Desktop 8940 is a great little desktop for a laptop person like myself. Like Dell’s premium XPS laptops, the XPS Desktop is attractive and small — perfect for tight spaces. Unlike the laptops, though, there are plenty of opportunities for upgrades to help you deal with changing needs. 


  • Compact but still roomy inside
  • Plenty of component options
  • Good front, rear port assortment

Don’t Like

  • Basic included accessories
  • No rear USB-C ports
  • Design not quite as nice as XPS laptops

From basic to fully loaded

The Dell XPS Desktop starts at about $640 and

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Best computer science job 2021: Top careers compared

(Image: Shutterstock)

Computer science explores the potential of computers and computing systems. Thanks to breakthroughs in cloud computing, artificial intelligence, and big data, the computer science field continue to thrive.

Computer and information technology jobs will grow much faster than the average between 2019-2029, according to the Bureau of Labor Statistics (BLS). In addition to high demand, many computer science career paths offer strong earning potential.

Careers in computer science require strong technical, problem-solving, and collaboration skills. With career paths in the tech sector, business, finance, national security, healthcare, and more, computer science jobs offer a strong outlook.

Web development

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Computer simulations identify factors for success

Frozen bovine sperm. Credit: wikipedia, Uwe Muell

A research team at the Humboldt University Berlin and the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) developed an agent-based computer model to simulate the journey of sperm cells through the female genital tract. Key factors for a successful transit could be identified without the use of animal experiments and were published in the scientific journal PLoS Computational Biology.

During mating in wildlife species, males transfer millions of sperm into the female genital tract. On the way to the egg cell the sperm have to pass through the genital tract. Very

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Neuroprosthesis: Brain implant helps man ‘speak’ through a computer

Courtesy Barbara Ries/UCSF

Neurosurgeon Edward Chang performs brain surgery at UCSF.


A brain implant has helped restore a type of speech to a man more than 15 years after a stroke robbed him of the ability to speak, researchers reported Wednesday.

They’re calling it a neuroprosthesis, and while it’s only one patient for now, the team at the University of California, San Francisco (UCSF) hopes their device may help other paralyzed people communicate.

“To our knowledge, this is the first successful demonstration of direct decoding of full words from the brain activity of someone who is paralyzed and

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Adding logical qubits to Sycamore quantum computer reduces error rate

Credit: Pixabay/CC0 Public Domain

The Google Quantum AI team has found that adding logical qubits to the company’s quantum computer reduced the logical qubit error rate exponentially. In their paper published in the journal Nature, the group describes their work with logical qubits as an error correction technique and outline what they have learned so far.

One of the hurdles standing in the way of the creation of usable quantum computers is figuring out how to either prevent errors from occurring or fixing them before they are used as part of a computation. On traditional computers, the problem is

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Facebook stops funding for brain reading computer interface

The UCSF team made some surprising progress and today is reporting in the New England Journal of Medicine that it used those electrode pads to decode speech in real time. The subject was a 36-year-old man the researchers refer to as “Bravo-1,” who after a serious stroke has lost his ability to form intelligible words and can only grunt or moan. In their report, Chang’s group says with the electrodes on the surface of his brain, Bravo-1 has been able to form sentences on a computer at a rate of about 15 words per minute. The technology involves measuring neural

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