×
GreekEnglish

×
  • Politics
  • Diaspora
  • World
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Cooking
Monday
26
Jan 2026
weather symbol
Athens 14°C
  • Home
  • Politics
  • Economy
  • World
  • Diaspora
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Mediterranean Cooking
  • Weather
Contact follow Protothema:
Powered by Cloudevo
> World

Cray to build El Capitan supercomputer for nuclear security apps

The US still uses a 1970s-era IBM Series/1 mainframe computer with 8-inch floppy drives to control its nuclear forces!

Newsroom May 21 09:25

Cray has been awarded a $600 million contract to build the first exascale supercomputer for the National Nuclear Security Administration, the US Department of Energy and the NNSA announced Tuesday. Named El Capitan, the supercomputer will be among the fastest known in the world and will help manage the US’ nuclear stockpile. It’s expected to go into production by late 2023.

Supercomputers are used for power-intensive programs like quantum physics, examining whether old nuclear weapons could still explode, forecasting global climate change effects, designing engines and aircraft and reconstructing the history of the universe. The two highest-powered supercomputers are still Summit and Sierra, owned by IBM in the US, according to a June report from Top500, which twice a year ranks the highest-performing computer systems in the world.

Sierra tops out at 125 petaflops, while El Capitan could run roughly 10 times faster, according to Lawrence Livermore National Laboratory. It has a peak performance of more than 1.5 exaflops, or 1.5 quintillion calculations per second, and will be used for national nuclear security applications at more than 50 times the speed of LLNL’s Sequoia system.

>Related articles

A university in Texas banned a professor from teaching Plato

ICE agents shot and killed a protester in Minneapolis (videos)

“The Discombobulator”: Trump’s revelation about the secret weapon the U.S. used during the capture of Maduro in Venezuela

See Also:

UPD – PM Mitsotakis announces 24 billion package to restart economy

Read more: cnet

Ask me anything

Explore related questions

#computers#crey#floppy drives#IBM#ICBM#nuclear forces#super-computer#usa
> More World

Follow en.protothema.gr on Google News and be the first to know all the news

See all the latest News from Greece and the World, the moment they happen, at en.protothema.gr

> Latest Stories

Problems in ferry services due to strong winds

January 26, 2026

Four women dead from the explosion and fire at the Violanta factory in Trikala, fifth still missing

January 26, 2026

On a grassland area, tons of concrete are being poured for the White Coast in Mytakas, Milos

January 26, 2026

Historic record for gold as it surpassed $5,000 per ounce

January 26, 2026

Just one AI camera on Mesogeion Avenue issued 28,000 red-light tickets in one month

January 26, 2026

Heavy rain today and flood risk: Which areas are on “red alert,” difficult hours ahead for Attica

January 26, 2026

The hard (to impossible) aspects of a coalition government, PASOK… heading for the Conference, the green suitors and the crafty polls, the disgrace of a donation to the state

January 26, 2026

Major fire at the Violanta factory in Trikala: Five employees missing, six others taken to hospital

January 26, 2026
All News

> World

Smiling climber Alex Honnold waves to onlookers watching him from inside the skyscraper in Taiwan – watch the video

Using mainly his legs, Alex Honnold reached the top of the world’s 11th-tallest building – He described the fee he received as “awkwardly large” – The climb had originally been scheduled for Friday but was postponed due to weather conditions

January 25, 2026

A university in Texas banned a professor from teaching Plato

January 25, 2026

ICE agents shot and killed a protester in Minneapolis (videos)

January 24, 2026

“The Discombobulator”: Trump’s revelation about the secret weapon the U.S. used during the capture of Maduro in Venezuela

January 24, 2026

War in Ukraine: Diplomacy in Abu Dhabi, Bombardments in Kyiv and Kharkiv

January 24, 2026
Homepage
PERSONAL DATA PROTECTION POLICY COOKIES POLICY TERM OF USE
Powered by Cloudevo
Copyright © 2026 Πρώτο Θέμα