At startup, a computer will perform a POST. What does POST stand for?

At startup, a computer will perform a POST. What does POST stand for?

• Power-on service template
• Pentium-on self test
• Power-on self-test
• Process-on start task 

EXPLANATION

POST stands for "Power On Self Test." It is a diagnostic program built into the computer's hardware that tests different hardware components before the computer boots up. ... If any of these tests fail, the POST process will return an error message.