posted by John .
what is an os? i need help on an important exam for colegge
Do you have an iPhone?
Do you have a computer with Windows on it?
OS stands for operating system. Also, are you SURE you're in college? It doesn't seem like it at all, due to your spelling.
Of course, you should click on the link!
And then you need to read the entire article so you know more than just the term. You need to know what the term means!!