p/s give me the solution about Bios Password reset mechanism for Toshiba Satellite A200

Did you buy this laptop in the United States? Are you the registered owner?
If yes, call Toshiba and they will clear the BIOS password at no charge. Just mention that the laptop set the BIOS password on its own.

Note:-
Before this there was full of virus in my laptop satellite A100

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds

Will not work on Toshiba laptops. You have to bypass the BIOS password before you can do anything with the laptop. You cannot boot from a floppy or CD unless the BIOS password is entered.

A. By Using the Motherboard Jumper:

In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.

Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don’t have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.

When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.

Make sure to turn the PC off before opening the cabinet and resetting the jumper.

B. By Using Software:

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds

I have a Toshiba A200-JA1 that asks for a password before start up. There is no parrell port. I have called some authorized service providers for Toshiba and they say they never heard of it.

They never heard of it?
Take a look at this article.

I dont want to pay to have it taken apart to get at the cmos battery if that wont clear the password.

Removing the CMOS battery will not clear the BIOS password on this model, don’t even try. By the way, the CMOS battery is soldered to the motherboard.

Do I have any other options?

You’ll have to take the laptop to the authorized repair center. They can remove the BIOS password without taking it apart.

I have the Toshiba A215-7437 I set the password when I first bought the computer and never changed it, all of a sudden It says invalid password. I am trying to find the instructions for this model to remove the battery and see that will work. My problem is that I can’t seem to find this model.

Are you talking about the BIOS password?
I believe that some Toshiba laptops can set the BIOS password on its own. This problem is related to the BIOS version installed on your laptop.
Toshiba knows about the problem and can clear the BIOS at no charge even if the laptop is not under warranty anymore.
Call Toshiba and explain what’s going on. Most likely they will agree to clear the password.
Also, you can take the laptop to your local authorized service center.
Check out this article: My Toshiba laptop displays Password= prompt on startup
Your model might be not on the list, but still try calling them and ask for an exception.