There are two way to check.first is you can directly check whether key contain A or not in binding like this:-. but i think this is not the better way so instead of this you can use ko.computed to check.
Check for operating system information in Windows 7. 1  Click the Start button , enter Computer in the search box, right-click Computer, and then click Properties. 2  Look under Windows edition for the version and edition of Windows that your PC is running.
Hi Alan. If you mean the version of Windows that is installed. Click Start, right click Computer and select Properties. Look in the top section for the information. If you are looking for other software programs that are installed, open Control Panel.