In a mass spectrum, what m/z value would correspond to the following fragment? 
Definitions:
Windows Vista
An operating system by Microsoft, released in January 2007, known for its improved security features but criticized for performance issues.
OS
Operating System, the essential software that manages computer hardware and software resources, providing common services for computer programs.
Windows Firewall
A software component of Microsoft Windows that provides firewalling and packet filtering functions, aiming to protect computers from unauthorized network access and cyber threats.
Ping Messages
A network utility tool used to test the reachability of a host on an Internet Protocol (IP) network.
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