Searching entire computer for string?

[BlakeMcKenna]

I need to write a quick & dirty simple application that will search my entire computer for a specified string of data. I need to code something like the following:

For Each Directory on Computer
   For Each File in Directory
       Open File 
       Read each line and search for String
   Next
Next

I know I need to import the namespace "System.IO" for starters. In the example above...what does "Computer" need to be?

Thanks,