About: hardware key

Premodifier: hardware
Head noun: key

Same concepts
http://dbpedia.org/resource/Software_protection_dongle

Broader concepts

label	provenance	confidence
hardware element	isap:236294489	0.586127
method	isap:210803315	0.126981

Narrower concepts

label	provenance	confidence
smart card	isap:125932558	0.626727
key	isap:280062598	0.349154
dongle	isap:406776217	0.218506