AT facts for kids

AT or at can stand for many different things! It's a short way to refer to places, scientific ideas, or types of technology. This article will help you understand some of the most common meanings of "AT" or "at."

Where Can You Find "AT"?

"AT" is often used as a short code for different places around the world.

Countries and Regions

• Austria: This European country uses "AT" as its official two-letter country code. You might also see websites from Austria ending with .at.
• Antigua and Barbuda: These islands in the Caribbean use "AT" as their code for weather organizations.
• Australia: This large country uses "AT" in some library catalog systems.
• Province of Asti: This area in Italy has "AT" as part of its official code.

Places in the United States

• Atchison County, Kansas: This county in the state of Kansas has "AT" as its code.
• Appalachian Trail: Often called the A.T., this is a super long hiking trail. It stretches over 2,180 miles (about 3,500 kilometers) through the mountains in the eastern United States. It's a famous spot for hikers!

Other Locations

• At, Bihar: This is a small village located in the Aurangabad district of Bihar, India.

"AT" in Science and Technology

"AT" is also used in many areas of science and technology, from computers to chemistry.

Computer World

• At sign (@): This symbol is often called the "at sign." You see it all the time in email addresses (like "yourname@example.com") and on social media platforms like Twitter.
• at (command): In computer programming, the "at command" is a tool that lets you schedule tasks. You can tell your computer to run a specific program or command at a certain time in the future.
• IBM Personal Computer/AT: This was an important computer model made by IBM in the 1980s.
  • AT (form factor): This refers to a standard size and shape for computer motherboards and cases. It was very popular for a long time.
  • AT connector: This was a special five-pin connector used for keyboards on older computers.
• Hayes command set: These are special commands used to control computer modems. Almost all of these commands start with the letters "AT."

Biology and Health

• Athletic training: This field focuses on preventing, diagnosing, and treating injuries in athletes.
• Assistive technology: These are special devices or tools designed to help people with disabilities. They can make daily tasks easier and improve quality of life.
• Antithrombin: This is a small protein in your blood. It helps control blood clotting and keeps your blood flowing smoothly.

Physics and Chemistry

• Astatine (At): This is a chemical element. It's a very rare and radioactive element, meaning it gives off energy as it changes.
• Ampere-turn (A t): This is a unit used to measure magnetomotive force. It describes the strength of a magnetic field created by an electric current.
• Attotesla (aT): This is a tiny unit of magnetic flux density. It's used to measure extremely weak magnetic fields. One attotesla is 10^-18 tesla, which is incredibly small!
• Technical atmosphere (at): This is a unit of pressure. It's similar to how we measure air pressure, but it's a slightly different standard.

Other Tech Uses

• Acceptance testing: In engineering, this is the final stage of testing a product or system. It makes sure everything works as it should before it's released.
• Appropriate technology: This idea is about using technology that fits well with the local environment and community. It's often simple, sustainable, and easy for people to use and maintain.
• AT Protocol: This is a new type of decentralized social network protocol. It's designed to let different social media apps talk to each other.
• Anti-tank warfare: This refers to methods and weapons used to fight against tanks in military conflicts.
• Automatic transmission: In vehicles, this is a type of gearbox that automatically changes gears as you drive. It makes driving easier because you don't have to shift gears yourself.

See Also

• At (disambiguation)