Nmap attempts to determine the target's os based on network responses.It returns the detected os version and the device type (general purpose, embedded, etc. ).Nmap (network mapper) is a network scanner created by gordon lyon (also known by his pseudonym fyodor vaskovich).[4] nmap is used to discover hosts and services on a computer network by …Official download site for the free nmap security scanner.Helps with network security, administration, and general hacking