problem HELP !

Hello it's Mehedi Hasan
I am 14 years old and I read in class 7
so I am very new to computer programing ,
so can anybody can help me out to use arduino uno r3
i have a arduino when I connect it to my pc pin 13's LED blinks
without programming why it's acting like that ?
If anybody is here plz do help me :o :frowning:

There is a program for L blinking loaded by default on original Arduinos. Don't worry. It is working as expected.

The very simple program "blink" is used to show the board is working. When you write your program, it will be overwritten. Blink is often used to test the board or programmer. If your program is not working and you suspect the Arduino is faulty, just load blink as a simple test.