The PC speaker is normally meant to reproduce a square wave via only 2 levels of output (the speaker is driven by only two voltage levels, typically 0 V and 5 V).
For example, if your payments for March and July 2010 were each one month late, the report may continue to show (for seven years from the date after each payment was due) that you were 30 days late twice in 2010, even though the tradeline for that account also shows your payments for the rest of 2010 were made on time.
Creditors can report late payments to the credit bureaus, which stay on the report for up to seven years after the late payment occurs. Your credit report will also show the length of the delinquency, usually by listing the late payments as 30 days, 60 days or 90 days past due.hile a single instance of a late payment may not do too much damage to your credit rating, it can trigger concern in other creditors which can raise your interest rates. Keep an eye on your payment due dates, and keep in touch with your creditors if you need to delay a payment.