why did my PC beep couple of times???

No. it is fine

Was probably for

1 ) New hardware found / removed

or

2 ) The Motherboard - being weird probably

or

3 ) any number of things windows has sounds for

It will be okay..

Mine beeps sometimes upon moving it while it's turned on, so I try to refrain from doing that. The beep is called a critical stop, and if it keeps on doing it, restart the computer. It's just telling you that it thinks something is wrong. You didn't damage your computer, you just confused it!

maybe you pressed a key in your keyboard by accident. when you press a key an let itpressed for awhile, it starts beeping. for sure when you heard the beeping, you tried to see what happend and released the key and it stopped. don't worry. if your computer is working evrything is ok.

It was trying to tell you an alert was raised. Considering the situation you described it was probable a loose connection. I had the same situation when I changed my router Saturday. Finally saw the message on my desktop. It read "error on USB" and was able to track it to a loose mouse cable.

You may have accidentally hit a couple of keys on your keyboard. If your machine is working OK, probably nothing to worry about.

To be safe, though, turn off your computer before moving it next time.

yes u mess up the cd drive maybe and is it a pc or a labtop

that was your system speaker just saying your doing something it doesnt like, as long as its not acting weird i wouldnt worry about it.