A barcode itself is a graphical form of the string of numbers below the stripes.
You can plug a USB barcode scanner into a pc or mac and open a new text document.
No need for barcode software. As soon as you scan the barcode, that string of numbers will show in your text document.
It is basically a text file of the string of numbers.
Think of it as a serial number or article number.
You can scan the string of numbers into any text block where you have your cursor.
For barcode lookup or query to work, you would need to link that string of numbers to any other record or database. An example would be to scan your identity number in barcode format and get a program to show your Age, Birthplace, Gender etc.
In a retail setting that string of numbers are linked to a company product database containing all the product details and pricing. So, when you scan the barcode the software looks up article number for the product in the product database and shows the description and price and brings that information onto the sale.
In a basic spreadsheet you can scan in a barcode and get the program to show the results frame any cell or combination of cells that you chose.
In the case of a Media Library like Media Monkey you could set up your music database first and then scan your barcode into any of the data tag fields to be embedded with your files.
The problem is to find a media library that has a barcode entry field.