COA's
Certificate of Authenticity

Samples of COA's

Windows 98 OEM COA - (Came with a new computer)
Windows 98 OEM (Original Equipment Manufacturer). This is the software that would have come pre-loaded on your new computer.

Windows 98 Upgrade
This you would have bought at a store to upgrade your old version of Windows.

Microsoft Office 2000
Suite containing Microsoft Word, Excel, Publisher, Outlook etc.