This is called a 'beep code' and what it means will vary depending on your computer as each manufacturer has their own beep codes. As such, i5Baby is incorrect when saying "your computer is broken".
What's the model of your computer? I suggest you Google that and the phrase 'beep codes' and you should be able to find a guide that explains what they mean. If not, try your troubleshooting guide or contacting the manufacturer.